Weather Thunder Bay long-term weather forecast

Long-term weather forecast for Thunder Bay for ten days.

Wednesday, Sep 10

64 / 46°F

0.00 in

8 mph

50 °F	50 °F	2 am
54 °F	52 °F	8 am
63 °F	61 °F	2 pm
57 °F	59 °F	8 pm

sunrise 7:27 am
sunset 8:19 pm

HOURLY

During the day morning cloudy, later morning overcast, in the afternoon cloudy, in the evening clear. The highest temperature 64 °F. Total rainfall 0.01 in. At night overcast. The lowest temperature 46 °F.

Interactive map weather Ontario

GPS: 48.3820; -89.2502

altitude: 652 ft
local time:

PLACES IN THE AREA

Weather forecast Thunder Bay, Ontario extended forecast

Time			Precip.	Wind	Pressure	Humidity	Dew	total	Fog	Low	Middle	High
Wednesday 09/10/2025
2 AM	cloudy	50 °F 48 °F	0.0 in	9 fps 6 mph north-northeast	30.1 in	96 %	48 °F	69 %	0%	69%	0%	0%
8 AM	overcast	54 °F 54 °F	0.01 in	11 fps 8 mph north-northeast	30.2 in	94 %	52 °F	100 %	0%	100%	0%	0%
2 PM	cloudy	63 °F 63 °F	0.0 in	11 fps 8 mph east	30.2 in	71 %	52 °F	39 %	0%	39%	0%	0%
8 PM	clear	57 °F 57 °F	0.0 in	2 fps 2 mph southwest	30.2 in	83 %	52 °F	0 %	0%	0%	0%	0%
Thursday 09/11/2025
2 AM	overcast	46 °F 45 °F	0.0 in	4 fps 2 mph northwest	30.2 in	99 %	46 °F	95 %	0%	95%	0%	0%
8 AM	cloudy	48 °F 48 °F	0.0 in	2 fps 2 mph north	30.3 in	98 %	46 °F	49 %	0%	49%	0%	0%
2 PM	clear	63 °F 63 °F	0.0 in	9 fps 6 mph southeast	30.3 in	74 %	54 °F	6 %	0%	6%	0%	0%
8 PM	clear	59 °F 61 °F	0.0 in	6 fps 4 mph southeast	30.2 in	88 %	55 °F	2 %	0%	2%	0%	0%

Thunder Bay, Ontario - information

State: Ontario

GPS coordinates: 48.3820; -89.2502

Time zone: America / Toronto time difference in hours with time in NY is -6 hours

Population: 107 909
Altitude: 652 ft
The administrative part:

Ontario, Toronto
, Thunder Bay

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Data source

Weather forecast for Thunder Bay is supplied by MET Norway Norwegian Meteorological Institute and the NRK.

Feels like

To calculate the perceived temperature, we use the Australian Apparent Temperature (AAT) model, which is designed for year-round calculations and takes air humidity into account in addition to temperature and wind speed.

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Astronomical information Thunder Bay

data are always in the local time

Sun and light

Sept. 10, 2025

Sunrise:	Sunset:
7:27 am	8:19 pm
Noon:	Length of day:
1:53 pm	12:52
Start of civil twilight*:	End of civil twilight*:
6:54 am	8:51 pm
Start of nautical twilight*:	End of nautical twilight*:
6:17 am	9:28 pm
Start of astronomical twilight*:	End of astronomical twilight*:
5:37 am	10:08 pm
* What is Twilight?

Moon and moon phases

Moonrise:	Moonset:
09/09/2025 8:59 pm	09/10/2025 11:15 am
Next new moon:	Next full moon:
09/21/2025	10/06/2025