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Northwestern Ontario Weather

Official weather conditions for the highways and communities drivers check every day.

Search supported Northwestern Ontario towns and view current conditions, warnings, and forecast periods using Environment Canada GeoMet data.

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Armstrong Atikokan Dryden Ear Falls Fort Frances Hearst Ignace Kenora Marathon Nipigon Pickle Lake Red Lake Sault Ste. Marie Sioux Lookout Sioux Narrows Terrace Bay Thunder Bay Upsala Wawa White River

Current conditions

Thunder Bay

City of Thunder Bay

Mostly Cloudy

Mostly Cloudy
19.8°C

Updated: 2026-06-12T18:11:00Z

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Wind

22 km/h, gust 43 km/h

Humidity

58%

Pressure

100.1 kPa rising

Visibility

N/A

Forecast periods

Next forecast blocks

Today

Increasing cloudiness near noon. 40 percent chance of showers. Wind west 30 km/h gusting to 60. High 21. UV index 7 or high.

Temp: High 21.

Wind: W, 30 km/h, gust 50 km/h

Tonight

Partly cloudy. 40 percent chance of showers early this evening. 30 percent chance of showers overnight. Wind west 30 km/h gusting to 60 becoming light after midnight. Wind becoming west 30 gusting to 50 before morning. Low 11.

Temp: Low 11.

Wind: W, 30 km/h, gust 60 km/h

Saturday

Mainly cloudy with 60 percent chance of showers. Wind west 30 km/h gusting to 50. High 19. UV index 5 or moderate.

Temp: High 19.

Wind: W, 30 km/h, gust 50 km/h

Saturday night

Cloudy periods with 30 percent chance of showers. Low 9.

Temp: Low 9.

Sunday

A mix of sun and cloud with 30 percent chance of showers. High 16.

Temp: High 16.

Sunday night

Cloudy periods. Low 6.

Temp: Low 6.