Weather in Thunder Bay, Ontario, Canada — today, tomorrow and 14-day forecast
Weather in Thunder Bay now: +20°, clear, wind 4.9 m/s, humidity 48%. Accurate forecast for today, tomorrow, 3 days and 2 weeks — temperature, precipitation, pressure and wind.
Weather in Thunder Bay now
Hourly forecast for today in Thunder Bay
Weather in Thunder Bay tomorrow
From +11° to +21° — day and night.
Weather in Thunder Bay for 3 days
From +11° to +23° — day and night.
Weather in Thunder Bay for the week
Including the 5-day outlook.
From +11° to +23° — day and night.
Weather in Thunder Bay for 2 weeks
Including the 10-day outlook.
From +11° to +23° — day and night.
Weekend weather in Thunder Bay
Weather for the weather-sensitive
📒 Weather diary in Thunder Bay
Ready-made observation table for August: past days are already filled in with weather-station data — for school and beyond. Open the diary →
What to do in Thunder Bay in weather like this 🎯
✉️ Weather forecast by email
Get the forecast for this city by email — every day at 17:00 Moscow time.
The Moon today 🌙
Monthly climate 🗓️
Thunder Bay, Ontario, Canada. Population 108 843.
Weather and climate in Thunder Bay 🌍
Climate in Thunder Bay: the warmest month is July (up to +23° by day), the coldest is February (down to -15° at night). Annual precipitation is about 724 mm.
The best time to visit is June–September, when the weather is most comfortable for walks and sightseeing.
Precipitation map 🌧️
Cities near Thunder Bay 📍
FAQ about weather in Thunder Bay ❓
What's the weather in Thunder Bay right now?
Now +20°, clear, wind 4.9 m/s, W, humidity 48%. Feels like +16°.
What's the weather in Thunder Bay tomorrow?
Tomorrow: +21° by day, +11° at night, mostly clear.
Sunrise and sunset in Thunder Bay?
Sunrise 05:56, sunset 20:07, day length 14h 11m.
What's the pressure and humidity in Thunder Bay?
Pressure 757 mmHg, humidity 48%, wind 5 m/s. Matters for weather-sensitive people.
Do I need an umbrella in Thunder Bay today?
No, precipitation is unlikely — you can go out without an umbrella.
Do I need sunscreen in Thunder Bay?
Yes, the UV index is 6 — high. Use SPF 30+, especially for children; no more than 20-30 minutes in direct sun unprotected.
Is it a good day for a picnic in Thunder Bay?
Yes, it’s warm and dry (up to +23°) — a good time for a picnic, a walk or a barbecue.
How long is it safe to stay in the sun in Thunder Bay?
At UV 6, no more than 20–30 minutes unprotected; longer with SPF 30+ and shade.
Is it a good day to wash the car in Thunder Bay?
No precipitation expected — a good time to wash the car; rain won’t spoil it in the coming hours.
Is it good weather for a walk or a bike ride in Thunder Bay?
Yes, dry and comfortable (up to +23°) — great for a walk, a bike ride or a run.
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Weather in Thunder Bay — in detail
Weather in Thunder Bay from “Pogoda 1” — an accurate, free forecast: current temperature, feels-like, wind, atmospheric pressure, humidity and precipitation. Available for today, tomorrow, 3, 5 and 10 days, a week, 2 weeks and a month, plus hourly weather, monthly climate, water temperature, air quality and an observation archive since 2017.
To quickly check the weather in Thunder Bay anytime, add the city to favorites — and get a daily forecast by email at 17:00 (Moscow time). Note: the forecast may be refined as new data arrives. Data: OpenWeather, Open-Meteo, met.no.