Lewiston 7-day weather forecast

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

created the forecast for Lewiston, Idaho using data from . This week's high is 85 掳F on Monday, while the low is 50 掳F on Tuesday. There are expected to be 2 sunny days and rain on 6 days this week.

There are currently no weather alerts.

Monday, May 25

- High of 85 掳F, low of 55 掳F (46% humidity)
- Mostly sunny with a 80% chance of rain (1 mm of rain)
- High risk of harm from sun exposure (6 UV index)
- Fresh breeze (22 mph wind)
- Sunrise at 5:04 AM, sunset at 8:25 PM
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Tuesday, May 26

- High of 56 掳F, low of 50 掳F (79% humidity)
- Overcast with a 100% chance of rain (3 mm of rain)
- Moderate risk of harm from sun exposure (3 UV index)
- Gentle breeze (10 mph wind)
- Sunrise at 5:03 AM, sunset at 8:27 PM
2 / 6
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Wednesday, May 27

- High of 66 掳F, low of 50 掳F (71% humidity)
- Mostly cloudy with a 94% chance of rain (2 mm of rain)
- Moderate risk of harm from sun exposure (4 UV index)
- Light breeze (7 mph wind)
- Sunrise at 5:02 AM, sunset at 8:28 PM
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Thursday, May 28

- High of 78 掳F, low of 53 掳F (69% humidity)
- Overcast with a 100% chance of rain (6 mm of rain)
- High risk of harm from sun exposure (5 UV index)
- Gentle breeze (10 mph wind)
- Sunrise at 5:02 AM, sunset at 8:29 PM
4 / 6
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Friday, May 29

- High of 74 掳F, low of 56 掳F (58% humidity)
- Partly sunny with a 100% chance of rain (11 mm of rain)
- High risk of harm from sun exposure (6 UV index)
- Moderate breeze (16 mph wind)
- Sunrise at 5:01 AM, sunset at 8:30 PM
5 / 6
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Saturday, May 30

- High of 69 掳F, low of 54 掳F (57% humidity)
- Mostly sunny with a 20% chance of rain (0 mm of rain)
- High risk of harm from sun exposure (6 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 5:00 AM, sunset at 8:31 PM
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6 / 6
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Sunday, May 31

- High of 70 掳F, low of 51 掳F (47% humidity)
- Partly cloudy with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 4:59 AM, sunset at 8:31 PM
- Full moon

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