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Today Hourly 7 days 30 days September
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September 2026 Weather | Idaho Falls, Idaho

Today 9/1
Sunny with a Chance of Thunderstorms
Day 79°
Night 54°
55
Wed 9/2
Partly Sunny with Showers
Day 73°
Night 46°
55
Thu 9/3
Sunny Weather
Day 75°
Night 50°
1
Fri 9/4
Partly Sunny with Showers
Day 79°
Night 48°
80
Sat 9/5
Cloudy Weather
Day 81°
Night 48°
55
Sun 9/6
Cloudy Weather
Day 79°
Night 54°
55
Mon 9/7
Cloudy Weather
Day 73°
Night 54°
55
Tue 9/8
Sunny Weather
Day 77°
Night 48°
2
Wed 9/9
Cloudy Weather
Day 73°
Night 48°
55
Thu 9/10
Stormy Weather
Day 75°
Night 45°
60
Fri 9/11
Sunny Weather
Day 81°
Night 48°
0
Sat 9/12
Sunny Weather
Day 81°
Night 48°
0
Sun 9/13
Sunny Weather
Day 79°
Night 46°
0
Mon 9/14
Sunny Weather
Day 63°
Night 43°
20
Tue 9/15
Sunny Weather
Day 81°
Night 46°
20
Wed 9/16
Sunny Weather
Day 81°
Night 46°
Thu 9/17
Sunny Weather
Day 73°
Night 43°
Fri 9/18
Sunny Weather
Day 70°
Night 41°
Sat 9/19
Sunny Weather
Day 73°
Night 45°
Sun 9/20
Sunny Weather
Day 77°
Night 46°
Mon 9/21
Sunny Weather
Day 73°
Night 45°
Tue 9/22
Sunny Weather
Day 77°
Night 46°
1
Wed 9/23
Sunny Weather
Day 79°
Night 46°
1
Thu 9/24
Cloudy Weather
Day 77°
Night 45°
1
Fri 9/25
Cloudy Weather
Day 75°
Night 45°
Sat 9/26
Rainy Weather
Day 73°
Night 45°
0
Sun 9/27
Cloudy Weather
Day 70°
Night 45°
2
Mon 9/28
Sunny Weather
Day 70°
Night 43°
25
Tue 9/29
Sunny Weather
Day 70°
Night 41°
55
Wed 9/30
Sunny Weather
Day 73°
Night 43°
88

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