Thunder Bay Weather Outlook – May 9, 2026: Cloudy, Windy, and Cool

THUNDER BAY – WEATHER – Thunder Bay starts Saturday under mostly cloudy skies with cool spring conditions and a brisk southwest breeze. Expect mixed precipitation chances today before gusty northwest winds take over.

Current Conditions

Observed at Thunder Bay Airport at 8:00 AM EDT:

Condition: Mostly cloudy
Temperature: 1.7°C
Wind: SW 12 km/h
Humidity: 75%
Pressure: 100.0 kPa and rising
Visibility: 32 km

Today will be mainly cloudy with a 40% chance of flurries or rain showers, changing to a 30% chance of rain showers this morning. Northwest winds increase to 30 km/h, gusting to 50. High 9°C. UV index 4, or moderate.

Sunday and Monday Forecast

Tonight: Mainly cloudy with a 40% chance of flurries or rain showers. Northwest winds gusting to 50 km/h, becoming light late this evening. Low 0°C.

Sunday: Mix of sun and cloud with a 30% chance of flurries or rain showers in the morning. High 9°C.

Monday: Sunny, high 9°C. Clouds return Monday night with a 30% chance of showers.

Looking Ahead

Warmer weather returns midweek, with 15°C Wednesday and Thursday, then 18°C Friday.