Idaho Falls 7-day weather forecast

Written by:
March 23, 2026
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Idaho Falls 7-day weather forecast

Stacker created the forecast for Idaho Falls, Idaho using data from OpenWeather. This week's high is 79 °F on Sunday, while the low is 32 °F on Tuesday. There is expected to be 1 sunny day and rain on 3 days this week.

NWS Pocatello ID has issued a frost advisory until Monday at 09:00 AM.

Monday, May 18

- High of 57 °F, low of 37 °F (24% humidity)
- Overcast with a 0% chance of rain
- Very high risk of harm from sun exposure (8 UV index)
- Fresh breeze (22 mph wind)
- Sunrise at 6:00 AM, sunset at 8:48 PM
1 / 6
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Tuesday, May 19

- High of 63 °F, low of 32 °F (25% humidity)
- Partly cloudy with a 0% chance of rain
- Very high risk of harm from sun exposure (7 UV index)
- Moderate breeze (15 mph wind)
- Sunrise at 5:59 AM, sunset at 8:49 PM
2 / 6
Nazarova Mariia // Shutterstock

Wednesday, May 20

- High of 65 °F, low of 37 °F (29% humidity)
- Overcast with a 100% chance of rain (2 mm of rain)
- High risk of harm from sun exposure (7 UV index)
- Fresh breeze (21 mph wind)
- Sunrise at 5:58 AM, sunset at 8:51 PM
3 / 6
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Thursday, May 21

- High of 60 °F, low of 43 °F (54% humidity)
- Overcast with a 100% chance of rain (5 mm of rain)
- High risk of harm from sun exposure (7 UV index)
- Moderate breeze (15 mph wind)
- Sunrise at 5:57 AM, sunset at 8:52 PM
4 / 6
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Friday, May 22

- High of 66 °F, low of 36 °F (36% humidity)
- Partly cloudy with a 0% chance of rain
- High risk of harm from sun exposure (7 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 5:56 AM, sunset at 8:53 PM
5 / 6
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Saturday, May 23

- High of 77 °F, low of 45 °F (30% humidity)
- Partly sunny with a 0% chance of rain
- High risk of harm from sun exposure (7 UV index)
- Moderate breeze (15 mph wind)
- Sunrise at 5:56 AM, sunset at 8:54 PM
- First quarter moon
6 / 6
Leszek Glasner // Shutterstock

Sunday, May 24

- High of 79 °F, low of 49 °F (32% humidity)
- Sunny with a 93% chance of rain (1 mm of rain)
- High risk of harm from sun exposure (7 UV index)
- Moderate breeze (17 mph wind)
- Sunrise at 5:55 AM, sunset at 8:55 PM

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