Weather Thunder Bay weekend

Weather forecast for Thunder Bay for this and next weekend.
Today
9/5/25
50 / 45 °F
Tomorrow
9/6/25
57 / 45 °F
Sunday
9/7/25
57 / 46 °F
Saturday during the day morning cloudy, later morning overcast, in the evening cloudy. Sunday during the day morning cloudy, later morning partly cloudy, in the afternoon overcast, in the evening partly cloudy.
Friday, Sep 5
image/svg+xml
50 / 45°F
0.00 in image/svg+xml 20 mph
50 °F 45 °F 5 pm
50 °F 45 °F 7 pm
48 °F 43 °F 9 pm
46 °F 41 °F 11 pm
sunrise 7:20 am
sunset 8:29 pm
HOURLY
During the day morning light rain, in the afternoon overcast, in the evening cloudy. The highest temperature 50 °F. Total rainfall 0.04 in. At night the lowest temperature 45 °F.

Interactive map weather Ontario


GPS: 48.3820; -89.2502
altitude: 652 ft
local time:
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Weather forecast Thunder Bay, Ontario extended forecast

Time State   Temp.   Feels like Precip. Wind PressureHumidity Dew total
 
 Fog Low
 
 Middle
 
 High
 

Friday 09/05/2025
12 AM
overcast 46 °F
43 °F		 0.0 in
  7 fps 5 mph
northwest		 29.5 in80 % 39  °F100 % 0% 7% 60% 100%
1 AM
light rain 46 °F
43 °F		 0.00 in
  9 fps 6 mph
west-northwest		 29.5 in81 % 39  °F100 % 0% 92% 100% 100%
2 AM
overcast 46 °F
43 °F		 0.0 in
  9 fps 6 mph
west-northwest		 29.5 in82 % 39  °F100 % 0% 49% 100% 100%
3 AM
overcast 45 °F
41 °F		 0.0 in
  10 fps 6 mph
west-northwest		 29.5 in84 % 39  °F100 % 0% 0% 100% 100%
4 AM
overcast 45 °F
41 °F		 0.0 in
  10 fps 7 mph
west		 29.5 in85 % 39  °F100 % 0% 10% 100% 98%
5 AM
overcast 45 °F
41 °F		 0.0 in
  12 fps 8 mph
west-northwest		 29.5 in87 % 41  °F100 % 0% 9% 100% 4%
6 AM
light rain 45 °F
41 °F		 0.01 in
  14 fps 9 mph
west-northwest		 29.5 in85 % 39  °F100 % 0% 10% 100% 87%
7 AM
light rain 45 °F
41 °F		 0.01 in
  16 fps 11 mph
west-northwest		 29.5 in85 % 39  °F100 % 0% 15% 100% 93%
8 AM
light rain 45 °F
41 °F		 0.01 in
  18 fps 12 mph
west-northwest		 29.5 in85 % 39  °F100 % 0% 3% 100% 70%
9 AM
overcast 45 °F
41 °F		 0.0 in
  19 fps 13 mph
west-northwest		 29.5 in85 % 39  °F100 % 0% 9% 100% 100%
10 AM
overcast 45 °F
39 °F		 0.0 in
  21 fps 14 mph
west-northwest		 29.5 in82 % 39  °F92 % 0% 14% 48% 80%
11 AM
overcast 48 °F
43 °F		 0.0 in
  23 fps 16 mph
west-northwest		 29.5 in69 % 37  °F100 % 0% 96% 21% 98%
12 PM
overcast 50 °F
45 °F		 0.0 in
  25 fps 17 mph
west-northwest		 29.5 in66 % 37  °F100 % 0% 64% 100% 39%
1 PM
light rain 50 °F
45 °F		 0.01 in
  26 fps 18 mph
west-northwest		 29.5 in66 % 37  °F100 % 0% 39% 100% 0%
2 PM
overcast 50 °F
45 °F		 0.0 in
  27 fps 18 mph
west-northwest		 29.5 in68 % 39  °F98 % 0% 41% 96% 0%
3 PM
overcast 50 °F
45 °F		 0.0 in
  29 fps 19 mph
west-northwest		 29.5 in64 % 37  °F93 % 0% 92% 34% 24%
4 PM
overcast 50 °F
45 °F		 0.0 in
  30 fps 20 mph
west-northwest		 29.6 in64 % 37  °F97 % 0% 92% 76% 46%
5 PM
overcast 50 °F
45 °F		 0.0 in
  31 fps 21 mph
west-northwest		 29.6 in66 % 39  °F100 % 0% 97% 98% 100%
6 PM
overcast 50 °F
45 °F		 0.0 in
  29 fps 20 mph
west-northwest		 29.6 in67 % 39  °F100 % 0% 91% 94% 80%
7 PM
overcast 50 °F
45 °F		 0.0 in
  28 fps 19 mph
west-northwest		 29.6 in68 % 39  °F100 % 0% 100% 100% 94%
8 PM
overcast 48 °F
43 °F		 0.0 in
  26 fps 18 mph
west-northwest		 29.6 in73 % 39  °F100 % 0% 63% 100% 75%
9 PM
cloudy 48 °F
43 °F		 0.0 in
  24 fps 17 mph
west-northwest		 29.7 in74 % 39  °F82 % 0% 3% 81% 10%
10 PM
cloudy 46 °F
41 °F		 0.0 in
  24 fps 16 mph
west-northwest		 29.7 in75 % 39  °F78 % 0% 10% 75% 0%
11 PM
cloudy 46 °F
41 °F		 0.0 in
  22 fps 15 mph
west-northwest		 29.7 in76 % 39  °F50 % 0% 21% 21% 20%

Saturday 09/06/2025
12 AM
cloudy 46 °F
41 °F		 0.0 in
  21 fps 15 mph
west-northwest		 29.7 in76 % 37  °F75 % 0% 60% 34% 28%
1 AM
cloudy 46 °F
41 °F		 0.0 in
  21 fps 14 mph
west-northwest		 29.8 in77 % 37  °F50 % 0% 46% 11% 0%
2 AM
cloudy 45 °F
39 °F		 0.0 in
  21 fps 15 mph
west-northwest		 29.8 in76 % 37  °F43 % 0% 32% 3% 14%
3 AM
cloudy 45 °F
39 °F		 0.0 in
  19 fps 13 mph
west-northwest		 29.8 in79 % 37  °F43 % 0% 15% 25% 15%
4 AM
cloudy 45 °F
41 °F		 0.0 in
  19 fps 13 mph
west-northwest		 29.8 in79 % 37  °F72 % 0% 18% 64% 32%
5 AM
cloudy 45 °F
39 °F		 0.0 in
  19 fps 13 mph
west-northwest		 29.8 in78 % 37  °F84 % 0% 29% 74% 35%
6 AM
overcast 45 °F
41 °F		 0.0 in
  17 fps 11 mph
west-northwest		 29.9 in77 % 37  °F97 % 0% 20% 96% 70%
7 AM
overcast 45 °F
41 °F		 0.0 in
  16 fps 11 mph
west-northwest		 29.9 in78 % 37  °F90 % 0% 3% 83% 77%
8 AM
overcast 45 °F
41 °F		 0.0 in
  16 fps 11 mph
west-northwest		 29.9 in77 % 37  °F100 % 0% 7% 100% 0%
9 AM
partly cloudy 46 °F
43 °F		 0.0 in
  14 fps 10 mph
west-northwest		 29.9 in75 % 39  °F28 % 0% 0% 26% 1%
10 AM
overcast 50 °F
46 °F		 0.0 in
  17 fps 12 mph
west-northwest		 29.9 in68 % 39  °F100 % 0% 19% 21% 100%
11 AM
overcast 52 °F
46 °F		 0.0 in
  21 fps 14 mph
northwest		 29.9 in56 % 37  °F100 % 0% 50% 73% 98%
12 PM
overcast 54 °F
48 °F		 0.0 in
  19 fps 13 mph
northwest		 29.9 in49 % 36  °F99 % 0% 85% 64% 89%
1 PM
overcast 55 °F
50 °F		 0.0 in
  17 fps 12 mph
west-northwest		 29.9 in45 % 34  °F100 % 0% 76% 100% 100%
2 PM
overcast 57 °F
52 °F		 0.0 in
  16 fps 11 mph
west-northwest		 29.9 in45 % 36  °F100 % 0% 60% 100% 97%
3 PM
light rain 57 °F
52 °F		 0.01 in
  16 fps 11 mph
west-northwest		 29.9 in46 % 36  °F100 % 0% 66% 100% 99%
4 PM
overcast 55 °F
52 °F		 0.0 in
  15 fps 11 mph
west-northwest		 29.9 in52 % 37  °F98 % 0% 14% 51% 96%
5 PM
cloudy 57 °F
54 °F		 0.0 in
  14 fps 10 mph
west-northwest		 29.9 in52 % 37  °F74 % 0% 20% 51% 47%
6 PM
cloudy 55 °F
52 °F		 0.0 in
  14 fps 9 mph
northwest		 29.9 in54 % 39  °F71 % 0% 28% 57% 12%
7 PM
light rain 55 °F
52 °F		 0.01 in
  13 fps 9 mph
north-northwest		 29.9 in58 % 39  °F99 % 0% 30% 98% 18%
8 PM
overcast 52 °F
48 °F		 0.0 in
  14 fps 10 mph
west-northwest		 30.0 in73 % 43  °F100 % 0% 0% 100% 71%
9 PM
overcast 50 °F
46 °F		 0.0 in
  15 fps 10 mph
west-northwest		 30.0 in80 % 43  °F100 % 0% 10% 96% 95%
10 PM
overcast 48 °F
45 °F		 0.0 in
  15 fps 11 mph
west-northwest		 30.0 in83 % 43  °F97 % 0% 6% 96% 18%
11 PM
cloudy 48 °F
45 °F		 0.0 in
  16 fps 11 mph
north-northwest		 30.0 in81 % 41  °F74 % 0% 5% 73% 4%
 

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:



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Weather Thunder Bay, Ontario. Weather forecast 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. 5, 2025 
Sunrise: Sunset: 
7:20 am 8:29 pm
Noon: Length of day: 
1:55 pm13:09
Start of civil twilight*: End of civil twilight*: 
6:47 am9:02 pm
Start of nautical twilight*: End of nautical twilight*: 
6:09 am9:40 pm
Start of astronomical twilight*:  End of astronomical twilight*: 
5:28 am10:21 pm
* What is Twilight?

Moon and moon phases

Moonrise: Moonset: 
09/04/2025 7:29 pm 09/05/2025 4:21 am
Next new moon: Next full moon: 
09/21/202509/07/2025

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