Idaho Falls 7-day weather forecast

Written by:
September 8, 2025
ESOlex // Shutterstock

Idaho Falls 7-day weather forecast

Stacker created the forecast for Idaho Falls, Idaho using data from OpenWeather. This week's high is 86 °F on Monday, while the low is 48 °F on Sunday. There is expected to be 1 sunny day and rain on 3 days this week.

There are currently no weather alerts.

Monday, September 8

- High of 86 °F, low of 53 °F (31% humidity)
- Partly cloudy with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Light breeze (7 mph wind)
- Sunrise at 7:00 AM, sunset at 7:51 PM
1 / 6
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Tuesday, September 9

- High of 83 °F, low of 58 °F (25% humidity)
- Overcast with a 99% chance of rain (1 mm of rain)
- High risk of harm from sun exposure (6 UV index)
- Moderate breeze (16 mph wind)
- Sunrise at 7:01 AM, sunset at 7:49 PM
2 / 6
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Wednesday, September 10

- High of 83 °F, low of 56 °F (13% humidity)
- Overcast with a 0% chance of rain
- Moderate risk of harm from sun exposure (5 UV index)
- Fresh breeze (19 mph wind)
- Sunrise at 7:02 AM, sunset at 7:47 PM
3 / 6
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Thursday, September 11

- High of 75 °F, low of 49 °F (37% humidity)
- Sunny with a 20% chance of rain (0 mm of rain)
- High risk of harm from sun exposure (6 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 7:03 AM, sunset at 7:46 PM
4 / 6
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Friday, September 12

- High of 75 °F, low of 51 °F (33% humidity)
- Mostly cloudy with a 0% chance of rain
- High risk of harm from sun exposure (7 UV index)
- Gentle breeze (10 mph wind)
- Sunrise at 7:04 AM, sunset at 7:44 PM
5 / 6
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Saturday, September 13

- High of 57 °F, low of 51 °F (85% humidity)
- Overcast with a 100% chance of rain (15 mm of rain)
- High risk of harm from sun exposure (7 UV index)
- Moderate breeze (14 mph wind)
- Sunrise at 7:05 AM, sunset at 7:42 PM
6 / 6
Nataliia K // Shutterstock

Sunday, September 14

- High of 75 °F, low of 48 °F (45% humidity)
- Partly cloudy with a 0% chance of rain
- High risk of harm from sun exposure (7 UV index)
- Gentle breeze (8 mph wind)
- Sunrise at 7:06 AM, sunset at 7:40 PM
- Last quarter moon

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