🌧️ A grey and cool midweek forecast for Thunder Bay as scattered showers continue, but clearer skies and milder conditions are on the way heading into the weekend
Thunder Bay – WEATHER – Thunder Bay remains under unsettled skies today with showers tapering by this evening, followed by a dry but cool Thursday. Frost is likely overnight Thursday into Friday, but the weekend looks brighter and milder with highs returning near 10°C.
🧭 4-Day Forecast at a Glance
| Date | Forecast | High | Low | Notes |
|---|---|---|---|---|
| Wed 22 Oct | Showers tapering | 7°C | 0°C | Cloudy and cool |
| Thu 23 Oct | Cloudy, breezy | 6°C | -3°C | Frost overnight |
| Fri 24 Oct | Increasing clouds | 7°C | 0°C | Mostly dry |
| Sat 25 Oct | Mix of sun & cloud | 10°C | +2°C | Mild weekend |
Current Conditions – 7:00 AM EDT (Thunder Bay Airport)
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Temperature: 4.7°C
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Condition: Mostly Cloudy
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Pressure: 100.8 kPa (Rising)
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Dew Point: 2.4°C
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Humidity: 85%
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Wind: NNW 11 km/h
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Visibility: 24 km
A mostly cloudy, damp morning greets Thunder Bay residents, with patchy light showers lingering around the region. Cool northwest winds and overcast skies will keep temperatures in the single digits today.
Today – Wednesday, October 22
Expect scattered showers through the morning, gradually tapering by afternoon as winds ease.
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High: 7°C
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Wind: Northwest 20 km/h, becoming light this afternoon
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UV Index: 2 (Low)
Tonight
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Weather: Mainly cloudy with a 60% chance of showers.
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Low: 0°C
Cloud cover and lingering moisture could bring brief, light showers overnight, possibly mixing with flurries over higher terrain.
Thursday, October 23
A cooler and cloudy day ahead.
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High: 6°C
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Wind: Northwest 20 km/h developing by late morning
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UV Index: 2 (Low)
The afternoon remains overcast but dry, with a brisk northerly breeze.
Thursday Night
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Weather: Clear and cold.
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Low: -3°C
Expect frost overnight as skies clear — the chilliest night of the week so far.
Friday, October 24
A brief return of sunshine, though cloud cover increases again by afternoon.
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High: 7°C
Friday Night
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Weather: Cloudy periods.
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Low: 0°C
Saturday, October 25
A pleasant weekend day ahead.
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Weather: A mix of sun and cloud.
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High: 10°C
A great day for outdoor plans or late-season yard work, with calm winds and near-seasonal temperatures.
Saturday Night
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Weather: Cloudy periods.
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Low: +2°C
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