Weather in Idaho Falls: September
![]() |
Average day temperature: | 75.6°F |
Average night temperature: | 52.4°F | |
![]() |
Number of sunny days: | 22 days |
Day length: | 11.8 - 13.2 hours | |
![]() |
Number of rainy days: | 1 day |
Precipitation totals: | 0.6 in. | |
more information |
14 days
forecast
forecast
Idaho Falls |
weather in
October
October
Idaho Falls |
Air temperature in September, °F
Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
15
30
45
60
75
90
105
Day temperature | Night temperature |
The highest day temperature during September of 2024 was 87°F. At the same time the lowest night temperature was 41°F. Daily and nightly averages during September were 75.0°F and 49.5°F.
Sunny, partly cloudy and cloudy days
Sunny days | |
Partly cloudy days | |
Cloudy days |
73%
20%
7%
Mostly all days in September are sunny but cloudy days are also possible.
Precipitation total in September, in.
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.2
0.4
0.5
0.7
0.9
1.1
1.2
1.4
1.0
1.0
Precipitation total value in Idaho Falls in September is 0.6 in. Other months of the year show relatively similar values.
Wind speed in September, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.6
3.2
4.8
6.4
8.0
9.5
11.1
12.7
6.3
7.1
7.7
7.4
7.4
8.8
9.0
9.3
7.3
6.6
5.1
6.3
7.1
7.7
7.5
7.4
7.4
8.8
9.0
9.3
7.3
6.6
5.1
The average wind speed value in September is 7.5 mph
Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
2.2
4.4
6.6
8.8
11.0
13.2
15.4
17.6
3.2
4.4
7.4
10.7
12.9
12.1
9.1
8.3
6.0
4.0
3.7
3.2
4.4
7.4
10.0
10.7
12.9
12.1
9.1
8.3
6.0
4.0
3.7
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 10.0.
Best time for vacation in Idaho Falls
Idaho Falls on a weather map
Leaflet | Tiles © Esri
Places in USA:
Name
°F
24 Hours Forecast
Idaho Falls
Local time: 23:18
April 06, sunday
0000

30°F
N
6 mph
6 mph
0300

28°F
N
6 mph
6 mph
0600

28°F
NW
5 mph
5 mph
0900

39°F
N
3 mph
3 mph
1200

54°F
NE
8 mph
8 mph
1500

59°F
NE
7 mph
7 mph
1800

57°F
NE
6 mph
6 mph
2100

43°F
NW
8 mph
8 mph