Northwestern Ontario Weather

Official weather conditions from Environment Canada.

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Current conditions

Thunder Bay

City of Thunder Bay

Mostly Cloudy

Mostly Cloudy
15.1°C

Updated: 2026-06-13T18:00:00Z

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Wind

30 km/h, gust 44 km/h

Humidity

55%

Pressure

100.5 kPa rising

Visibility

N/A

Forecast periods

Next forecast blocks

Today

Cloudy with 60 percent chance of showers. Wind west 30 km/h gusting to 50. High 17. UV index 5 or moderate.

Temp: High 17.

Wind: NW, 20 km/h

Tonight

Cloudy. 30 percent chance of showers overnight. Wind west 30 km/h gusting to 50. Low 8.

Temp: Low 8.

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

Sunday

Mainly cloudy with 30 percent chance of showers. Wind northwest 30 km/h gusting to 50. High 20. UV index 7 or high.

Temp: High 20.

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

Sunday night

Cloudy periods. Low 6.

Temp: Low 6.

Monday

A mix of sun and cloud. High 22.

Temp: High 22.

Monday night

Cloudy periods with 30 percent chance of showers. Low 7.

Temp: Low 7.