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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
3
23°
4
20°
5
22°
6
25°
7
22°
8
27°
9
26°
10
19°
11
19°
12
20°
13
21°
14
21°
15
20°
16
19°
17
19°
18
19
20
21
22
23
24
25
26
27
28
29
30
Forecast
Thursday, September 3, 2026
Day
23°
Feels 23
Wind
24 km/h E
Gust
36 km/h
Humidity
61%
P.O.P
30%
Night
16°
Feels 15
Wind
28 km/h E
Gust
42 km/h
Humidity
100%
P.O.P
90%
Rain
25-30 mm
Historical Averages
Sep 3
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.