Thunder Bay (Canada) weather

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Forecast days

Today

Maximum daytime temperature: -17° Celsius; Minimum nighttime temperature: -19° Celsius;

Sunrise: 08:41

Sunset: 17:02

Clear.

L UV

No pollution data.

No pollen data.

Today

Maximum daytime temperature: -17° Celsius; Minimum nighttime temperature: -19° Celsius;
Sun 14 Dec

Maximum daytime temperature: -9° Celsius; Minimum nighttime temperature: -11° Celsius;

Sunrise: 08:42

Sunset: 17:02

Clear changing to cloudy in the afternoon.

L UV

No pollution data.

No pollen data.

Sun 14 Dec

Maximum daytime temperature: -9° Celsius; Minimum nighttime temperature: -11° Celsius;
Mon 15 Dec

Maximum daytime temperature: -8° Celsius; Minimum nighttime temperature: -12° Celsius;

Sunrise: 08:43

Sunset: 17:02

Cloudy changing to clear by early evening.

L UV

No pollution data.

No pollen data.

Mon 15 Dec

Maximum daytime temperature: -8° Celsius; Minimum nighttime temperature: -12° Celsius;
Tue 16 Dec

Maximum daytime temperature: 5° Celsius; Minimum nighttime temperature: -9° Celsius;

Sunrise: 08:43

Sunset: 17:02

Cloudy changing to sunny by late morning.

L UV

No pollution data.

No pollen data.

Tue 16 Dec

Maximum daytime temperature: 5° Celsius; Minimum nighttime temperature: -9° Celsius;
Wed 17 Dec

Maximum daytime temperature: 0° Celsius; Minimum nighttime temperature: -3° Celsius;

Sunrise: 08:44

Sunset: 17:03

Cloudy.

L UV

No pollution data.

No pollen data.

Wed 17 Dec

Maximum daytime temperature: 0° Celsius; Minimum nighttime temperature: -3° Celsius;
Thu 18 Dec

Maximum daytime temperature: 0° Celsius; Minimum nighttime temperature: -25° Celsius;

Sunrise: 08:45

Sunset: 17:03

Light snow changing to overcast by lunchtime.

L UV

No pollution data.

No pollen data.

Thu 18 Dec

Maximum daytime temperature: 0° Celsius; Minimum nighttime temperature: -25° Celsius;
Fri 19 Dec

Maximum daytime temperature: -8° Celsius; Minimum nighttime temperature: -9° Celsius;

Sunrise: 08:45

Sunset: 17:03

Clear changing to overcast by lunchtime.

L UV

No pollution data.

No pollen data.

Fri 19 Dec

Maximum daytime temperature: -8° Celsius; Minimum nighttime temperature: -9° Celsius;

Clear.

Sunrise: 08:41

Sunset: 17:02

L UV

No pollution data.

No pollen data.

7 day forecast for Thunder Bay

Today (13 December 2025)

Time	23:00
Weather symbols
Chance of precipitation	<5%
Temperature (°C)	-19°
Feels like temperature (°C)	-29°
Wind direction and speed (mph)	NW 13
Wind gust (mph)	30
Visibility (description)	VG
Humidity	73%
UV	-

Sunday (14 December 2025)

Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Weather symbols
Chance of precipitation	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	10%	20%	30%
Temperature (°C)	-19°	-19°	-19°	-18°	-18°	-18°	-18°	-18°	-19°	-19°	-18°	-17°	-16°	-15°	-14°	-13°	-13°	-13°	-13°	-13°	-12°	-11°	-9°	-9°
Feels like temperature (°C)	-29°	-29°	-29°	-28°	-28°	-27°	-27°	-27°	-27°	-28°	-27°	-25°	-23°	-21°	-20°	-19°	-18°	-18°	-18°	-18°	-17°	-17°	-16°	-16°
Wind direction and speed (mph)	NW 13	NW 13	NW 12	NW 12	NW 11	NW 10	NW 10	NW 9	WNW 10	NW 10	NW 9	NW 8	WNW 7	WNW 6	W 6	W 5	W 5	WSW 5	WSW 5	WSW 5	SW 6	SW 7	SW 10	SSW 10
Wind gust (mph)	29	28	26	25	24	23	22	22	22	21	19	18	17	16	13	12	11	11	11	11	15	19	22	24
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	74%	74%	75%	75%	76%	76%	76%	77%	77%	78%	74%	70%	62%	55%	53%	51%	51%	54%	54%	55%	62%	75%	79%	83%
UV	-	-	-	-	-	-	-	-	1	1	1	1	1	1	1	1	1	1	-	-	-	-	-	-

Monday (15 December 2025)

Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Weather symbols
Chance of precipitation	40%	50%	60%	40%	30%	20%	30%	30%	30%	30%	30%	30%	20%	10%	10%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%
Temperature (°C)	-9°	-9°	-10°	-10°	-10°	-11°	-11°	-11°	-11°	-11°	-11°	-11°	-10°	-10°	-9°	-8°	-8°	-9°	-9°	-10°	-10°	-11°	-11°	-12°
Feels like temperature (°C)	-16°	-17°	-17°	-18°	-17°	-18°	-17°	-18°	-18°	-18°	-18°	-17°	-17°	-16°	-15°	-14°	-14°	-14°	-14°	-15°	-15°	-15°	-14°	-15°
Wind direction and speed (mph)	SSW 11	SSW 12	SW 13	SW 12	WSW 10	W 10	W 8	W 8	W 8	WNW 8	WNW 8	NW 8	NW 8	NW 8	NW 8	NW 8	NW 8	NW 7	NW 6	NNW 6	NW 5	NW 4	WNW 3	W 3
Wind gust (mph)	25	26	26	24	21	19	17	16	16	18	19	19	19	20	20	19	17	15	13	12	10	8	7	7
Visibility (description)	VG	VG	P	P	M	G	G	G	G	G	G	G	G	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	84%	85%	93%	90%	88%	86%	85%	86%	87%	85%	86%	87%	85%	80%	79%	77%	81%	84%	85%	86%	89%	90%	92%	94%
UV	-	-	-	-	-	-	-	-	1	1	1	1	1	1	1	1	1	1	-	-	-	-	-	-

Tuesday (16 December 2025)

Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Weather symbols
Chance of precipitation	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%
Temperature (°C)	-12°	-12°	-12°	-12°	-11°	-9°	-8°	-6°	-5°	-4°	-4°	-3°	-1°	0°	1°	2°	3°	3°	4°	4°	4°	4°	3°	1°
Feels like temperature (°C)	-16°	-16°	-17°	-16°	-15°	-14°	-13°	-12°	-11°	-11°	-10°	-8°	-7°	-5°	-3°	-2°	-1°	-1°	0°	0°	0°	-1°	-3°	-5°
Wind direction and speed (mph)	WSW 3	SW 4	WSW 5	SW 5	SW 5	SSW 6	SSW 7	SSW 9	SSW 11	SSW 12	SSW 12	SW 12	SW 11	SW 10	SW 10	SW 10	WSW 10	WSW 11	W 12	W 14	W 16	WNW 17	WNW 19	WNW 19
Wind gust (mph)	7	8	9	9	11	15	18	22	25	26	25	25	23	22	21	22	23	25	29	34	38	41	44	43
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	G	G	VG	VG	VG	VG	VG
Humidity	95%	96%	93%	92%	91%	92%	94%	96%	93%	91%	87%	84%	82%	78%	74%	73%	75%	76%	76%	77%	76%	75%	70%	62%
UV	-	-	-	-	-	-	-	-	1	1	1	1	1	1	1	1	1	1	-	-	-	-	-	-

Wednesday (17 December 2025)

Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Weather symbols
Chance of precipitation	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	10%	10%	10%	10%	10%	10%	10%	10%	10%	10%	<5%	10%	10%	20%	20%	10%
Temperature (°C)	-1°	-3°	-5°	-6°	-7°	-7°	-8°	-9°	-9°	-9°	-9°	-8°	-7°	-6°	-5°	-4°	-3°	-3°	-2°	-2°	-1°	-1°	0°	0°
Feels like temperature (°C)	-8°	-10°	-12°	-13°	-14°	-13°	-14°	-14°	-14°	-14°	-12°	-12°	-11°	-10°	-10°	-9°	-8°	-7°	-7°	-7°	-6°	-5°	-4°	-4°
Wind direction and speed (mph)	NW 19	NW 18	NW 16	NW 13	NW 12	NW 9	NW 7	WNW 6	W 5	WSW 5	WSW 4	SW 5	SSW 5	S 6	S 7	SSE 8	SSE 8	SSE 8	SSE 8	SSE 9	SSE 9	SSE 9	SSE 9	SSE 10
Wind gust (mph)	41	40	36	30	25	20	15	12	11	10	12	13	15	17	19	19	19	18	19	21	20	19	22	23
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	G	G	G	G
Humidity	60%	61%	58%	60%	62%	63%	64%	66%	68%	69%	68%	65%	62%	63%	68%	75%	80%	85%	89%	91%	91%	90%	90%	87%
UV	-	-	-	-	-	-	-	-	1	1	1	1	1	1	1	1	1	1	-	-	-	-	-	-

Thursday (18 December 2025)

Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	22:00
Weather symbols
Chance of precipitation	20%	30%	40%	50%	40%	60%	60%	60%	70%	50%	50%	50%	50%	40%	40%	30%	20%	20%	20%	<5%	<5%
Temperature (°C)	0°	0°	1°	1°	1°	1°	1°	1°	1°	0°	0°	-3°	-10°	-12°	-14°	-15°	-16°	-17°	-18°	-18°	-20°
Feels like temperature (°C)	-4°	-4°	-4°	-4°	-4°	-4°	-4°	-4°	-4°	-4°	-4°	-11°	-19°	-23°	-25°	-26°	-27°	-28°	-30°	-30°	-32°
Wind direction and speed (mph)	SSE 11	S 10	S 10	S 10	S 10	SSW 10	SW 9	WSW 9	W 9	WNW 9	WNW 10	NW 17	NW 19	NNW 20	NNW 21	NNW 21	NNW 21	NNW 20	NNW 19	NNW 18	NW 16
Wind gust (mph)	23	24	24	24	23	21	22	21	20	22	39	45	46	49	48	47	47	45	43	41	35
Visibility (description)	G	G	G	G	M	M	P	P	P	P	M	G	M	M	M	G	VG	VG	VG	VG	VG
Humidity	91%	93%	94%	96%	96%	97%	99%	97%	100%	98%	96%	90%	88%	86%	84%	84%	82%	82%	83%	83%	81%
UV	-	-	-	-	-	-	-	-	1	1	1	1	1	1	1	1	1	1	-	-	-

Friday (19 December 2025)

Time	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	<5%	<5%	<5%	10%	10%	20%	50%	60%
Temperature (°C)	-23°	-24°	-24°	-23°	-18°	-15°	-11°	-8°
Feels like temperature (°C)	-34°	-34°	-33°	-29°	-23°	-20°	-18°	-16°
Wind direction and speed (mph)	NW 14	NW 10	NW 7	WNW 5	W 4	S 5	SSE 9	S 13
Wind gust (mph)	29	22	16	13	15	19	30	31
Visibility (description)	VG	VG	VG	VG	VG	VG	M	P
Humidity	83%	86%	92%	86%	76%	85%	102%	98%
UV	-	-	-	1	1	1	-	-

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Forecast for 11pm (UTC-5) Saturday

Updated 00:31 (UTC) on Sun 14 Dec 2025

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Thunder Bay (Canada) weather

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Forecast days

Today

Today

Sun 14 Dec

Sun 14 Dec

Mon 15 Dec

Mon 15 Dec

Tue 16 Dec

Tue 16 Dec

Wed 17 Dec

Wed 17 Dec

Thu 18 Dec

Thu 18 Dec

Fri 19 Dec

Fri 19 Dec

7 day forecast for Thunder Bay

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