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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Dallesport Airport, WA
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September
Average Temperature
High
26°
Feels 26
Low
12°
Feels 11
Average Precipitation
4 Days
Rain amount
10.6mm
Snow amount
0cm
Content continues below
Daily Historical Averages
September 2026
S
M
T
W
T
F
S
1
2
21°
3
20°
4
22°
5
23°
6
23°
7
23°
8
26°
9
28°
10
28°
11
26°
12
24°
13
23°
14
25°
15
25°
16
25°
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Forecast
Wednesday, September 2, 2026
Day
21°
Feels 21
Wind
15 km/h N
Gust
23 km/h
Humidity
53%
P.O.P
90%
Rain
~5 mm
Night
11°
Feels 10
Wind
9 km/h W
Gust
14 km/h
Humidity
100%
P.O.P
90%
Rain
5-10 mm
Historical Averages
Sep 2
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.