Lewiston 7-day weather forecast

Written by:
June 30, 2025
ESOlex // Shutterstock

Lewiston 7-day weather forecast

Stacker created the forecast for Lewiston, Idaho using data from OpenWeather. This week's high is 100 °F on Tuesday, while the low is 57 °F on Thursday. There are expected to be 3 sunny days and precipitation on 0 days this week.

NWS Spokane WA has issued a heat advisory until Wednesday at 09:00 PM.

Monday, June 30

- High of 99 °F, low of 60 °F (21% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (9 UV index)
- Light breeze (5 mph wind)
- Sunrise at 4:59 AM, sunset at 8:44 PM
1 / 6
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Tuesday, July 1

- High of 100 °F, low of 64 °F (15% humidity)
- Mostly cloudy with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Light breeze (5 mph wind)
- Sunrise at 4:59 AM, sunset at 8:44 PM
2 / 6
Andrew Lever // Shutterstock

Wednesday, July 2

- High of 95 °F, low of 68 °F (25% 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 5:00 AM, sunset at 8:43 PM
- First quarter moon
3 / 6
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Thursday, July 3

- High of 87 °F, low of 57 °F (29% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (9 UV index)
- Gentle breeze (11 mph wind)
- Sunrise at 5:00 AM, sunset at 8:43 PM
4 / 6
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Friday, July 4

- High of 91 °F, low of 59 °F (19% humidity)
- Mostly sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (9 UV index)
- Gentle breeze (10 mph wind)
- Sunrise at 5:01 AM, sunset at 8:43 PM
5 / 6
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Saturday, July 5

- High of 86 °F, low of 63 °F (21% humidity)
- Mostly cloudy with a 0% chance of rain
- Very high risk of harm from sun exposure (9 UV index)
- Moderate breeze (16 mph wind)
- Sunrise at 5:02 AM, sunset at 8:42 PM
6 / 6
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Sunday, July 6

- High of 88 °F, low of 60 °F (27% humidity)
- Partly cloudy with a 0% chance of rain
- Very high risk of harm from sun exposure (9 UV index)
- Moderate breeze (14 mph wind)
- Sunrise at 5:02 AM, sunset at 8:42 PM

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