Lewiston weather live forecast

Today's maximum temperature in Lewiston is expected to be 29°C. Select a day from the live weather forecast for Lewiston, Idaho, USA for more weather parameters.

Thursday
10th Sep
29

13

6

6
Friday
11th Sep
24

11

5

4
Saturday
12th Sep
25

11

6

5
Sunday
13th Sep
16

10

0

4
Monday
14th Sep
21

7

6

5

5-day weather forecast updated at 04:01 on Thursday 10th September 2026 GMT

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The 5-day weather forecast for Idaho (Lewiston) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Lewiston weather forecast by day

Below are the detailed weather forecasts for Lewiston for the next 5 days.

Lewiston weather for Thursday 10th September 2026

Expect broken clouds in Lewiston, Idaho with a maximum temperature of 29°C, low levels of heat & humidity, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the west.

29
°C maximum temperature
13
°C minimum temperature
broken clouds
6
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
22
kph wind from W

Lewiston weather for Friday 11th September 2026

Expect broken clouds in Lewiston, Idaho with a maximum temperature of 24°C, maximum UV of 4 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the west.

24
°C maximum temperature
11
°C minimum temperature
broken clouds
5
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
24
°C wind chill
12
kph wind from W

Lewiston weather for Saturday 12th September 2026

Expect sunshine and showers in Lewiston, Idaho with a maximum temperature of 25°C, maximum UV of 5 (Moderate) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 74% chance of some rain and a light breeze of 12 kph from the west.

25
°C maximum temperature
11
°C minimum temperature
sunshine and showers
6
hours of sunshine
5
UV index (Moderate)
74
% chance of some rain
<5
mm of rainfall expected
25
°C wind chill
12
kph wind from W

Lewiston weather for Sunday 13th September 2026

Expect cloudy with some rain in Lewiston, Idaho with a maximum temperature of 16°C, maximum UV of 4 (Moderate) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 79% chance of some rain and a gentle breeze of 15 kph from the west.

16
°C maximum temperature
10
°C minimum temperature
cloudy with some rain
0
hours of sunshine
4
UV index (Moderate)
79
% chance of some rain
<20
mm of rainfall expected
16
°C wind chill
15
kph wind from W

Lewiston weather for Monday 14th September 2026

Expect broken clouds in Lewiston, Idaho with a maximum temperature of 21°C, maximum UV of 5 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 6 kph from the east.