Thunder Bay Weather Outlook – Sunday, October 12, 2025
Thunder Bay – WEATHER – It’s a mild, overcast start to Thanksgiving Sunday across Thunder Bay and area, with morning temperatures near 12°C and light southerly winds. A few patches of drizzle may develop through the morning, but the bulk of the rain is expected to arrive overnight into early Monday, as a weak cold front moves across northwestern Ontario.
Thanksgiving Monday will bring early showers, then a clearing trend and a noticeable drop in temperature by nightfall.
🌤 Current Conditions (as of 7:00 AM EDT – Thunder Bay Airport)
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Temperature: 11.9°C
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Dew Point: 8.6°C
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Humidity: 80%
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Wind: S 10 km/h
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Pressure: 101.6 kPa (falling)
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Condition: Cloudy
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Visibility: 24 km
Sunday, October 12 Forecast
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Weather: Cloudy with a 30% chance of drizzle this morning.
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Wind: South 20 km/h, gusting to 40 km/h.
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High: 16°C
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UV Index: 3 (moderate)
Tonight
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Mainly cloudy with showers beginning overnight.
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Wind: South 20 km/h gusting to 40 km/h.
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Low: 11°C
🌧️ Monday, October 13 – Thanksgiving Day
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Morning: Showers ending near noon.
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Afternoon: Clearing with sunny breaks developing.
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Wind: Southwest 20 km/h, becoming northwest 20 gusting to 40 km/h in the morning.
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High: 15°C
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UV Index: 3 (moderate)
Monday Night:
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Clear and cool.
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Low: 0°C
🌥️ Tuesday, October 14
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Morning: Sunny early, then increasing cloudiness through the afternoon.
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High: 11°C
Tuesday Night:
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Cloudy.
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Low: +4°C
🍂 Thanksgiving Weekend Summary
| Day | Conditions | High / Low | Wind Gusts | Notes |
|---|---|---|---|---|
| Sun 12 | Cloudy, chance of drizzle | 16°C / 11°C | S 40 km/h | Mild, damp morning |
| Mon 13 | AM showers, clearing later | 15°C / 0°C | NW 40 km/h | Cool, breezy Thanksgiving |
| Tue 14 | Increasing cloudiness | 11°C / +4°C | Light | Seasonal fall conditions |
| Wed 15 | Mix of sun and cloud | 13°C / +5°C | Light | Cool, calm midweek weather |
🌬️ Weather Highlights
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Today: Overcast and mild; drizzle or light rain possible.
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Tonight: Rain moves in with steady southerly winds.
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Thanksgiving Monday: Brief showers in the morning, clearing skies by afternoon with a cooler breeze.
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Tuesday: Dry and pleasant — classic October weather pattern returns.
🧥 Wardrobe & Travel Tips
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Today: Light layers and a windbreaker will be perfect under cloudy skies.
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Monday: Keep an umbrella handy for the morning, but sunny breaks make for an ideal afternoon walk.
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Evening: Monday night will be clear and crisp — a frost risk possible in rural valleys.
A mild but grey Thanksgiving Sunday gives way to cooler, sunnier skies on Monday — perfect for outdoor celebrations and fall colours. – NetNewsLedger Weather Desk
