Lewiston 7-day weather forecast

Written by:
September 8, 2025
ESOlex // Shutterstock

Lewiston 7-day weather forecast

Stacker created the forecast for Lewiston, Idaho using data from OpenWeather. This week's high is 89 °F on Monday, while the low is 60 °F on Monday. There are expected to be 2 sunny days and rain on 6 days this week.

There are currently no weather alerts.

Monday, September 8

- High of 89 °F, low of 60 °F (45% humidity)
- Overcast with a 100% chance of rain (2 mm of rain)
- High risk of harm from sun exposure (5 UV index)
- Moderate breeze (14 mph wind)
- Sunrise at 6:17 AM, sunset at 7:13 PM
1 / 6
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Tuesday, September 9

- High of 82 °F, low of 61 °F (44% humidity)
- Sunny with a 99% chance of rain (2 mm of rain)
- Moderate risk of harm from sun exposure (5 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 6:18 AM, sunset at 7:11 PM
2 / 6
Andrew Lever // Shutterstock

Wednesday, September 10

- High of 80 °F, low of 64 °F (49% humidity)
- Overcast with a 100% chance of rain (5 mm of rain)
- Moderate risk of harm from sun exposure (5 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 6:20 AM, sunset at 7:09 PM
3 / 6
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Thursday, September 11

- High of 79 °F, low of 64 °F (55% humidity)
- Mostly cloudy with a 100% chance of rain (6 mm of rain)
- Moderate risk of harm from sun exposure (4 UV index)
- Light breeze (6 mph wind)
- Sunrise at 6:21 AM, sunset at 7:08 PM
4 / 6
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Friday, September 12

- High of 79 °F, low of 64 °F (55% humidity)
- Overcast with a 39% chance of rain (0 mm of rain)
- Moderate risk of harm from sun exposure (5 UV index)
- Gentle breeze (10 mph wind)
- Sunrise at 6:22 AM, sunset at 7:06 PM
5 / 6
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Saturday, September 13

- High of 82 °F, low of 64 °F (53% humidity)
- Sunny with a 0% chance of rain
- Moderate risk of harm from sun exposure (5 UV index)
- Light breeze (7 mph wind)
- Sunrise at 6:23 AM, sunset at 7:04 PM
6 / 6
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Sunday, September 14

- High of 82 °F, low of 67 °F (46% humidity)
- Mostly cloudy with a 35% chance of rain (0 mm of rain)
- Moderate risk of harm from sun exposure (5 UV index)
- Light breeze (7 mph wind)
- Sunrise at 6:25 AM, sunset at 7:02 PM
- Last quarter moon

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