Lewiston 7-day weather forecast

Written by:
March 9, 2026
ESOlex // Shutterstock

Lewiston 7-day weather forecast

Stacker created the forecast for Lewiston, Idaho using data from OpenWeather. This week's high is 70 °F on Wednesday, while the low is 37 °F on Monday. There are expected to be 0 sunny days and rain on 3 days this week.

There are currently no weather alerts.

Monday, March 16

- High of 55 °F, low of 37 °F (80% humidity)
- Overcast with a 20% chance of rain (0 mm of rain)
- Moderate risk of harm from sun exposure (3 UV index)
- Light breeze (6 mph wind)
- Sunrise at 6:58 AM, sunset at 6:54 PM
1 / 6
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Tuesday, March 17

- High of 61 °F, low of 47 °F (50% humidity)
- Overcast with a 0% chance of rain
- Moderate risk of harm from sun exposure (3 UV index)
- Light breeze (5 mph wind)
- Sunrise at 6:56 AM, sunset at 6:55 PM
2 / 6
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Wednesday, March 18

- High of 70 °F, low of 51 °F (39% humidity)
- Overcast with a 89% chance of rain (0 mm of rain)
- Moderate risk of harm from sun exposure (4 UV index)
- Moderate breeze (15 mph wind)
- Sunrise at 6:54 AM, sunset at 6:57 PM
- New moon
3 / 6
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Thursday, March 19

- High of 66 °F, low of 54 °F (55% humidity)
- Overcast with a 0% chance of rain
- Moderate risk of harm from sun exposure (3 UV index)
- Light breeze (4 mph wind)
- Sunrise at 6:52 AM, sunset at 6:58 PM
4 / 6
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Friday, March 20

- High of 65 °F, low of 55 °F (64% humidity)
- Overcast with a 20% chance of rain (0 mm of rain)
- Moderate risk of harm from sun exposure (3 UV index)
- Moderate breeze (18 mph wind)
- Sunrise at 6:50 AM, sunset at 7:00 PM
5 / 6
Cari Rubin Photography // Shutterstock

Saturday, March 21

- High of 58 °F, low of 45 °F (40% humidity)
- Overcast with a 0% chance of rain
- Moderate risk of harm from sun exposure (3 UV index)
- Moderate breeze (17 mph wind)
- Sunrise at 6:48 AM, sunset at 7:01 PM
6 / 6
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Sunday, March 22

- High of 57 °F, low of 41 °F (48% humidity)
- Overcast with a 0% chance of rain
- Moderate risk of harm from sun exposure (3 UV index)
- Light breeze (4 mph wind)
- Sunrise at 6:46 AM, sunset at 7:02 PM

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