Weather in Thunder Bay, Canada 🇨🇦
The current temperature in Thunder Bay is 13°C, sunny, feeling like 12°C. The air is at 77% humidity and winds are about 4 km/h, and the UV index is 2 (low). Looking ahead, Thunder Bay should sit between roughly 9°C and 15°C over the coming days.
Hourly Forecast for Thunder Bay
14-Day Forecast for Thunder Bay
Overcast
Patchy rain nearby
Overcast
Sunny
Sunny
Sunny
Sunny
Overcast
Overcast
Sunny
Sunny
Sunny
Sunny
Sunny
Additional Forecasts for Thunder Bay
Air Quality
Historical Weather
Weather Forecasts for Other Cities in Canada
Best Time to Be Outside in Thunder Bay Today
The most comfortable window in Thunder Bay today looks like 12:00 to 15:00, when it is around 14°C. It should stay dry through that window. The next likely rain is around 22:00.
Frequently Asked Questions about Weather in Thunder Bay
What is the temperature in Thunder Bay right now?
Thunder Bay is sitting at 13°C (55°F) right now, sunny (feels like 12°C).
What's the weather like in Thunder Bay right now?
Conditions in Thunder Bay right now: Sunny, humidity 77%, wind 4 km/h SSE.
What is today's forecast for Thunder Bay?
Today in Thunder Bay: high 15°C, low 10°C, overcast. Chance of rain: 50%.
What is the 7-day weather forecast for Thunder Bay?
Daily highs and lows for Thunder Bay:
- 2026-09-19: 15°C / 10°C
- 2026-09-20: 13°C / 9°C
- 2026-09-21: 11°C / 9°C
- 2026-09-22: 12°C / 7°C
- 2026-09-23: 13°C / 9°C
- 2026-09-24: 14°C / 8°C
- 2026-09-25: 16°C / 11°C
Is it going to rain in Thunder Bay today?
There is a 50% chance of rain in Thunder Bay today. Total expected precipitation: 0.7 mm.
What is the wind speed in Thunder Bay right now?
Wind in Thunder Bay is currently 4 km/h (2 mph) from the SSE.
What is the UV index in Thunder Bay right now?
The UV index in Thunder Bay is currently 1.9 (low). Sun protection is recommended when the index is 3 or higher.
