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7 Days
14 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Duluth, MN
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September
Average Temperature
High
19°
Feels 18
Low
9°
Feels 8
Average Precipitation
14 Days
Rain amount
58.8mm
Snow amount
0.2cm
Content continues below
Daily Historical Averages
September 2026
S
M
T
W
T
F
S
1
2
27°
3
23°
4
20°
5
23°
6
24°
7
21°
8
22°
9
23°
10
20°
11
20°
12
20°
13
20°
14
20°
15
19°
16
19°
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Forecast
Wednesday, September 2, 2026
Day
27°
Feels 27
Wind
10 km/h N
Gust
15 km/h
Humidity
42%
P.O.P
30%
Night
16°
Feels 16
Wind
11 km/h E
Gust
17 km/h
Humidity
88%
P.O.P
40%
Rain
~1 mm
Historical Averages
Sep 2
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.