Thunder Bay Weather Outlook – May 11, 2026: “Here Comes the Sun”… Briefly

THUNDER BAY – WEATHER – Thunder Bay starts Monday mostly cloudy and chilly, but today offers at least a hopeful mix of sun and cloud. “Here Comes the Sun” may be the song of the week, even if the forecast keeps plenty of clouds in the playlist.

Current Conditions

Observed at Thunder Bay Airport at 7:00 AM EDT:

Condition: Mostly cloudy
Temperature: 0.7°C
Wind: WSW 4 km/h
Humidity: 72%
Pressure: 102.7 kPa and rising
Visibility: 32 km

Today will bring a mix of sun and cloud, with light winds up to 15 km/h. High 10°C. Morning wind chill near -6. UV index 6, or high.

Tuesday and Wednesday Forecast

Tonight: Clear, becoming partly cloudy after midnight. Low -2°C, with wind chill near -6 overnight.

Tuesday: Cloudy with periods of rain beginning in the morning, except periods of snow over higher terrain. Southeast winds 20 km/h, gusting to 40 near noon. High 5°C.

Wednesday: A welcome improvement with a mix of sun and cloud and a high of 15°C. Clear overnight, low 0°C.

Looking Ahead

Thursday turns cloudy with a high of 15°C, then showers become more likely Friday into the weekend, with highs near 17°C to 18°C.

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