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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Longview, WA
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September
Average Temperature
High
26°
Feels 27
Low
10°
Feels 10
Average Precipitation
4 Days
Rain amount
13.4mm
Snow amount
0.1cm
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Daily Historical Averages
September 2026
S
M
T
W
T
F
S
1
2
25°
3
22°
4
22°
5
24°
6
24°
7
25°
8
26°
9
29°
10
29°
11
27°
12
26°
13
25°
14
26°
15
27°
16
27°
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Forecast
Wednesday, September 2, 2026
Day
25°
Feels 25
Wind
35 km/h SW
Gust
53 km/h
Humidity
34%
P.O.P
40%
Rain
<1 mm
Night
13°
Feels 12
Wind
34 km/h SW
Gust
51 km/h
Humidity
82%
P.O.P
60%
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.