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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Idaho Falls, ID
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September
Average Temperature
High
23°
Feels 23
Low
7°
Feels 5
Average Precipitation
8 Days
Rain amount
33.3mm
Snow amount
0.1cm
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Daily Historical Averages
September 2026
S
M
T
W
T
F
S
1
2
3
25°
4
25°
5
27°
6
28°
7
20°
8
22°
9
26°
10
26°
11
25°
12
24°
13
23°
14
24°
15
25°
16
25°
17
25°
18
19
20
21
22
23
24
25
26
27
28
29
30
Forecast
Thursday, September 3, 2026
Day
25°
Feels 25
Wind
25 km/h W
Gust
38 km/h
Humidity
18%
P.O.P
20%
Night
12°
Feels 9
Wind
28 km/h S
Gust
42 km/h
Humidity
62%
P.O.P
20%
Historical Averages
Sep 3
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.