Please note that the browser or operating system used on your device is no longer supported. Content may be missing or not displayed as expected, it is best to use the latest version of Edge, Firefox, Safari or Chrome.
SEVERE THUNDERSTORM WATCH
Conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts, large hail and heavy rain.Hazards:Toonie to golf ball sized hailStrong winds gusting to 90 km/hTiming:This afternoon and early this evening.Discussion:Severe thunderstorms are expected to develop near the Ontario - Minnesota border this afternoon and track eastward. The atmospheric conditions for severe weather are in place over Ontario. However, it is possible that the strongest storms may remain near or just south of the border.Large hail can damage property and cause injury. Strong wind gusts can toss loose objects, damage weak buildings, break branches off trees and overturn large vehicles. Remember, severe thunderstorms can produce tornadoes. Water-related activities may be unsafe due to violent and sudden gusts of wind over bodies of water.Lightning kills and injures Canadians every year. Remember, when thunder roars, go indoors!Emergency Management Ontario recommends that you take cover immediately if threatening weather approaches.Severe thunderstorm watches are issued when atmospheric conditions are favourable for the development of thunderstorms that could produce one or more of the following: large hail, damaging winds, torrential rainfall.Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or tweet reports using #ONStorm.For more information: ontario.ca/page/be-prepared-emergency.
In effect for:
- City of Thunder Bay
Follow:
- Regional ATOM
Current ConditionsObserved at: Thunder Bay Airport
- Past 24 hours
- Weather Radar
- Satellite
- Lightning
20°C
- °C
- °F
- Observed at:
- Thunder Bay Airport
- Date:
- Condition:
- Mostly Cloudy
- Pressure:
- 100.4 kPa
- Tendency:
- Falling
- Temperature:
- 20.3°C
- Dew point:
- 15.4°C
- Humidity:
- 73%
- Wind:
- WSW 14 km/h
- Humidex:
- 25
- Visibility:
- 32 km
20°C
- Condition:
- Mostly Cloudy
- Pressure:
- 100.4 kPa
- Tendency:
- Falling
- Temperature:
- 20.3°C
- Dew point:
- 15.4°C
- Humidity:
- 73%
- Wind:
- WSW 14 km/h
- Humidex:
- 25
- Visibility:
- 32 km
Mostly Cloudy
20°C
- °C
- °F
- Wind:
- WSW 14 km/h
- Humidex:
- 25
More details
- Temperature:
- 20.3°C
- Pressure:
- 100.4 kPa
- Dew point:
- 15.4°C
- Visibility:
- 32 km
- Humidity:
- 73%
- Date:
- Observed at:
- Thunder Bay Airport
Past 24 hour Conditions
Weather Radar
Satellite
Lightning
Alerts
Jet Stream
Hourly Forecast
Air Quality
Historical Weather
ForecastForecast issued:
- Hourly Forecast
- Air Quality
- Alerts
- Jet Stream
Tonight
Thu
13 Jun
20°C
Showers
Night
8°C
40%
Chance of showers
Fri
14 Jun
23°C
Sunny
Night
11°C
Clear
Sat
15 Jun
26°C
30%
Chance of showers
Night
15°C
30%
Chance of showers
Sun
16 Jun
25°C
A mix of sun and cloud
Night
16°C
Cloudy periods
Mon
17 Jun
26°C
Cloudy
Night
15°C
Cloudy
Tue
18 Jun
23°C
Cloudy
SEVERE THUNDERSTORM WATCH
Conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts, large hail and heavy rain.Hazards:Toonie to golf ball sized hailStrong winds gusting to 90 km/hTiming:This afternoon and early this evening.Discussion:Severe thunderstorms are expected to develop near the Ontario - Minnesota border this afternoon and track eastward. The atmospheric conditions for severe weather are in place over Ontario. However, it is possible that the strongest storms may remain near or just south of the border.Large hail can damage property and cause injury. Strong wind gusts can toss loose objects, damage weak buildings, break branches off trees and overturn large vehicles. Remember, severe thunderstorms can produce tornadoes. Water-related activities may be unsafe due to violent and sudden gusts of wind over bodies of water.Lightning kills and injures Canadians every year. Remember, when thunder roars, go indoors!Emergency Management Ontario recommends that you take cover immediately if threatening weather approaches.Severe thunderstorm watches are issued when atmospheric conditions are favourable for the development of thunderstorms that could produce one or more of the following: large hail, damaging winds, torrential rainfall.Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or tweet reports using #ONStorm.For more information: ontario.ca/page/be-prepared-emergency.
In effect for:
- City of Thunder Bay
Follow:
- Regional ATOM
Detailed ForecastForecast issued:
SEVERE THUNDERSTORM WATCH
Conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts, large hail and heavy rain.Hazards:Toonie to golf ball sized hailStrong winds gusting to 90 km/hTiming:This afternoon and early this evening.Discussion:Severe thunderstorms are expected to develop near the Ontario - Minnesota border this afternoon and track eastward. The atmospheric conditions for severe weather are in place over Ontario. However, it is possible that the strongest storms may remain near or just south of the border.Large hail can damage property and cause injury. Strong wind gusts can toss loose objects, damage weak buildings, break branches off trees and overturn large vehicles. Remember, severe thunderstorms can produce tornadoes. Water-related activities may be unsafe due to violent and sudden gusts of wind over bodies of water.Lightning kills and injures Canadians every year. Remember, when thunder roars, go indoors!Emergency Management Ontario recommends that you take cover immediately if threatening weather approaches.Severe thunderstorm watches are issued when atmospheric conditions are favourable for the development of thunderstorms that could produce one or more of the following: large hail, damaging winds, torrential rainfall.Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or tweet reports using #ONStorm.For more information: ontario.ca/page/be-prepared-emergency.
In effect for:
- City of Thunder Bay
Follow:
- Regional ATOM
| Date | Detailed Forecast |
|---|---|
| Tonight | A few showers or thunderstorms ending after midnight then mainly cloudy with 40 percent chance of showers. Risk of a thunderstorm overnight. Fog patches developing overnight. Local amount 20 to 30 mm. Wind southwest 40 km/h gusting to 60 becoming east 40 gusting to 60 then light late this evening. Low 11. |
| Thu, 13 Jun | Mainly cloudy. 40 percent chance of showers in the morning. Showers beginning in the morning. Risk of a thunderstorm in the morning and afternoon. Fog patches dissipating in the morning. Local amount 10 to 20 mm. Wind becoming west 20 km/h late in the morning. High 20. UV index 3 or moderate. |
| Night | Partly cloudy. 40 percent chance of showers in the evening with risk of a thunderstorm. Wind west 20 km/h becoming light in the evening. Low 8. |
| Fri, 14 Jun | Sunny. High 23. |
| Night | Clear. Low 11. |
| Sat, 15 Jun | A mix of sun and cloud with 30 percent chance of showers. High 26. |
| Night | Cloudy periods with 30 percent chance of showers. Low 15. |
| Sun, 16 Jun | A mix of sun and cloud. High 25. |
| Night | Cloudy periods. Low 16. |
| Mon, 17 Jun | Cloudy. High 26. |
| Night | Cloudy. Low 15. |
| Tue, 18 Jun | Cloudy. High 23. |
| Normals | Max21°C.Min8°C. | Sunrise | 5:55 EDT | Sunset | 21:59 EDT |
|---|
Detailed ForecastForecast issued:
Tonight11°C
A few showers or thunderstorms ending after midnight then mainly cloudy with 40 percent chance of showers. Risk of a thunderstorm overnight. Fog patches developing overnight. Local amount 20 to 30 mm. Wind southwest 40 km/h gusting to 60 becoming east 40 gusting to 60 then light late this evening. Low 11.
Thu, 13 Jun
20°C
Mainly cloudy. 40 percent chance of showers in the morning. Showers beginning in the morning. Risk of a thunderstorm in the morning and afternoon. Fog patches dissipating in the morning. Local amount 10 to 20 mm. Wind becoming west 20 km/h late in the morning. High 20. UV index 3 or moderate.
Night:Partly cloudy. 40 percent chance of showers in the evening with risk of a thunderstorm. Wind west 20 km/h becoming light in the evening. Low 8.
Fri, 14 Jun
23°C
Sunny. High 23.
Night:Clear. Low 11.
Sat, 15 Jun
26°C
A mix of sun and cloud with 30 percent chance of showers. High 26.
Night:Cloudy periods with 30 percent chance of showers. Low 15.
Sun, 16 Jun
25°C
A mix of sun and cloud. High 25.
Night:Cloudy periods. Low 16.
Mon, 17 Jun
26°C
Cloudy. High 26.
Night:Cloudy. Low 15.
Tue, 18 Jun
23°C
Cloudy. High 23.
- Normals:
- Max21°C.Min8°C.
- Sunrise:
- 5:55 EDT
- Sunset:
- 21:59 EDT
Averages and extremes
07 Jun
- Average high
- 19.5°C
- Average low
- 6.0°C
- Highest temperature (1942-2004)
- 31.7°C
- 1972
- Lowest temperature (1942-2004)
- -2.8°C
- 1949
- Greatest precipitation (1942-2004)
- 25.4 mm
- 1968
- Greatest rainfall (1942-2003)
- 25.4 mm
- 1968
- Most snow on the ground (1955-2004)
- 0.0 cm
- Monthly frequency of precipitation
- n/a
Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.
08 Jun
- Average high
- 19.6°C
- Average low
- 6.2°C
- Highest temperature (1942-2004)
- 31.1°C
- 1959
- Lowest temperature (1942-2004)
- -2.8°C
- 1949
- Greatest precipitation (1942-2004)
- 30.0 mm
- 1967
- Greatest rainfall (1942-2003)
- 30.0 mm
- 1967
- Greatest snowfall (1942-2003)
- 0.0 cm
- Most snow on the ground (1955-2004)
- 0.0 cm
- Monthly frequency of precipitation
- n/a
Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.
09 Jun
- Average high
- 19.8°C
- Average low
- 6.3°C
- Highest temperature (1942-2004)
- 30.6°C
- 1956
- Lowest temperature (1942-2004)
- -1.6°C
- 1978
- Greatest precipitation (1942-2004)
- 29.0 mm
- 1963
- Greatest rainfall (1942-2003)
- 29.0 mm
- 1963
- Greatest snowfall (1942-2003)
- 0.0 cm
- Most snow on the ground (1955-2004)
- 0.0 cm
- Monthly frequency of precipitation
- n/a
Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.
10 Jun
- Average high
- 19.9°C
- Average low
- 6.5°C
- Highest temperature (1942-2004)
- 31.2°C
- 1997
- Lowest temperature (1942-2004)
- -1.4°C
- 1980
- Greatest precipitation (1942-2004)
- 27.5 mm
- 2000
- Greatest rainfall (1942-2003)
- 27.2 mm
- 1947
- Greatest snowfall (1942-2003)
- 0.0 cm
- Most snow on the ground (1955-2004)
- 0.0 cm
- Monthly frequency of precipitation
- n/a
Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.
11 Jun
- Average high
- 20.0°C
- Average low
- 6.6°C
- Highest temperature (1942-2004)
- 32.9°C
- 1988
- Lowest temperature (1942-2004)
- -1.1°C
- 1958
- Greatest precipitation (1942-2004)
- 36.6 mm
- 1972
- Greatest rainfall (1942-2003)
- 36.6 mm
- 1972
- Greatest snowfall (1942-2003)
- 0.0 cm
- Most snow on the ground (1955-2004)
- 0.0 cm
- Monthly frequency of precipitation
- n/a
Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.
12 Jun
- Average high
- 20.1°C
- Average low
- 6.8°C
- Highest temperature (1942-2004)
- 35.6°C
- 1956
- Lowest temperature (1942-2004)
- 0.0°C
- 1947
- Greatest precipitation (1942-2004)
- 33.4 mm
- 1989
- Greatest rainfall (1942-2003)
- 33.4 mm
- 1989
- Greatest snowfall (1942-2003)
- 0.0 cm
- Most snow on the ground (1955-2004)
- 0.0 cm
- Monthly frequency of precipitation
- n/a
Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.
13 Jun
- Average high
- 20.2°C
- Average low
- 6.9°C
- Highest temperature (1942-2004)
- 30.6°C
- 1953
- Lowest temperature (1942-2004)
- -1.1°C
- 1946
- Greatest precipitation (1942-2004)
- 48.8 mm
- 1944
- Greatest rainfall (1942-2003)
- 48.8 mm
- 1944
- Greatest snowfall (1942-2003)
- 0.0 cm
- Most snow on the ground (1955-2004)
- 0.0 cm
- Monthly frequency of precipitation
- n/a
Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.
14 Jun
- Average high
- 20.4°C
- Average low
- 7.1°C
- Highest temperature (1942-2004)
- 30.2°C
- 1987
- Lowest temperature (1942-2004)
- -0.6°C
- 1958
- Greatest precipitation (1942-2004)
- 37.8 mm
- 1964
- Greatest rainfall (1942-2003)
- 37.8 mm
- 1964
- Greatest snowfall (1942-2003)
- 0.0 cm
- Most snow on the ground (1955-2004)
- 0.0 cm
- Monthly frequency of precipitation
- n/a
Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.
15 Jun
- Average high
- 20.5°C
- Average low
- 7.2°C
- Highest temperature (1942-2004)
- 30.6°C
- 1955
- Lowest temperature (1942-2004)
- 0.6°C
- 1948
- Greatest precipitation (1942-2004)
- 33.5 mm
- 1950
- Greatest rainfall (1942-2003)
- 33.5 mm
- 1950
- Greatest snowfall (1942-2003)
- 0.0 cm
- Most snow on the ground (1955-2004)
- 0.0 cm
- Monthly frequency of precipitation
- n/a
Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.
16 Jun
- Average high
- 20.6°C
- Average low
- 7.4°C
- Highest temperature (1942-2004)
- 30.6°C
- 1946
- Lowest temperature (1942-2004)
- 1.1°C
- 1972
- Greatest precipitation (1942-2004)
- 18.0 mm
- 1969
- Greatest rainfall (1942-2003)
- 18.0 mm
- 1969
- Greatest snowfall (1942-2003)
- 0.0 cm
- Most snow on the ground (1955-2004)
- 0.0 cm
- Monthly frequency of precipitation
- n/a
Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.
17 Jun
- Average high
- 20.8°C
- Average low
- 7.5°C
- Highest temperature (1942-2004)
- 31.7°C
- 1970
- Lowest temperature (1942-2004)
- 0.6°C
- 1950
- Greatest precipitation (1942-2004)
- 26.6 mm
- 1994
- Greatest rainfall (1942-2003)
- 26.6 mm
- 1994
- Greatest snowfall (1942-2003)
- 0.0 cm
- Most snow on the ground (1955-2004)
- 0.0 cm
- Monthly frequency of precipitation
- n/a
Note that more recent Averages and Extremes information for this location may be available. Please visit the Historical Climate Data's Almanac Averages and Extremes page.
Weather shortcuts
Organize Shortcuts
Select to drag and drop, rename or delete.
No shortcuts
- Report Severe Weather
- Canadian Weather
- Weather Radar - Canada
- Satellite - Canada
- Marine - Canada
- Air Quality
- Canadian Ice Service
- Seasonal forecasts
- Extended forecast
- Public Alerts - Canada
- Lightning
- Hurricane
- Weather Summaries
- Hazardous Weather
- Global and Regional forecast models
- Astronomy
- Water Level and Flow
- Historical Climate Data
- Aviation
- Guide to Public forecasts
- Guide to Marine forecasts
- Guide to Air Quality forecasts
- Canadian Centre for Climate Services Library
- Wind Chill and Humidex Calculators
- Weather and your health
Add this page
×
Add to shortcuts
The name you have entered for the shortcut already exists on your Weather shortcuts menu. Would you like to overwrite it?
×
Rename shortcut
There is already a shortcut with the same name in this list. Do you want to rename "link" to "link(2)"?
×
Add to shortcuts
Your shortcut list has reached the maximum size of 30
How to use
Add to shortcuts
- Go to the desired page on the site, open the Weather shortcuts menu and click on the "Add to shortcuts" button
- Page name will display in the "Add this page" window, the name can be changed by highlighting the text and entering the desired name
- Click on the "Save" button to add the link to the list
- Click on the "X" button to close the panel
Delete a link
- Click on the "Organize shortcuts" button
- Select the link to delete
- Click on the "Delete" button to remove the link from the list
- Click on the "Close" button to save the change
Move a link up/down the list
- Click on the "Organize shortcuts" button
- Click and hold the link and move to new location in the list
- Click on the "Close" button to save the change
Rename a link
- Click on the "Organize shortcuts" button
- Select the link to rename
- Click on the "Rename" button and change the link name
- Click the enter or tab key
- Click on the "Close" button to save the change
Keyboard navigation
- Use the Tab key to move to a button or link
- Use the Enter key to click on buttons or links
- Organize shortcuts navigation
- Use the ↑ Up key to select the link above. If none are selected, it will select the first link.
- Use the ↓ Down key to select the link below. If none are selected, it will select the last link.
- Use the Page Up key to move a selection up in the list.
- Use the Page Down key to move a selection down in the list.
Restore default list
Warning: Clicking on the button below will remove all your customized links.
Customized Weather shortcuts
Save your customized list as a bookmark.
Copy/paste or click on the link below then when the page displays, you can bookmark the page using the web browser. Bookmarking your customized list will allow you to access it even if the local storage on your device is erased.
Features
Find out about coastal flooding coverage, forecasts and warnings in your region
Feedbackabout this web site
- Date modified:
