Thunder Bay Weather Conditions Update: Foggy Morning Turning into a Warm Day

Thunder Bay

Current Weather

Observed at: Thunder Bay Airport
Date: 6:00 AM EDT, Tuesday, July 9, 2024
Condition: Shallow Fog
Pressure: 101.2 kPa (Rising)
Temperature: 13.2°C
Dew point: 13.2°C
Humidity: 100%
Wind: WSW at 9 km/h
Visibility: 32 km

Thunder Bay is experiencing a foggy morning with 100% humidity and a temperature of 13°C. As the day progresses, expect a mix of sun and clouds with a chance of afternoon showers.

Forecast Overview


A mix of sun and cloud with a 30% chance of showers in the afternoon. Fog patches will dissipate this morning. The high will be 27°C with a humidex of 33. The UV index is very high at 8.


Partly cloudy with a 30% chance of showers in the evening. Fog patches are expected to develop after midnight. The low will be 14°C.

Wednesday, July 10

A mix of sun and cloud with a 30% chance of showers in the afternoon, accompanied by a risk of thunderstorms. Fog patches will dissipate in the morning. Winds will become east at 20 km/h late in the morning. Highs will reach 24°C with a humidex of 27. The UV index remains high at 7. Clear skies are expected at night, with a low of 13°C.

Thursday, July 11

Sunny with a high of 28°C. Clear skies at night with a low of 14°C.

Friday, July 12

Sunny weather continues with a high of 30°C. Clear skies will persist at night with a low of 16°C.

Wardrobe Suggestions

Given the warm temperatures and high UV index, lightweight, light-colored clothing is recommended. Hats, sunglasses, and sunscreen are essential for UV protection. Morning fog patches suggest caution during early travel, and staying hydrated is crucial throughout the day.

Historical Weather

On this date, Thunder Bay’s highest recorded temperature was 32.2°C, and the lowest was 6.7°C. Today’s forecasted temperatures are comfortably within typical summer ranges.

Weather Trivia

Did you know that Thunder Bay, located on the shores of Lake Superior, experiences a unique microclimate? The lake significantly influences local weather patterns, often resulting in cooler summers and milder winters compared to other inland areas of Ontario.

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