Lewiston weather live forecast

Today's maximum temperature in Lewiston is expected to be 33°C. Select a day from the live weather forecast for Lewiston, Idaho, USA for more weather parameters.

Saturday
4th Jul
33

15

16

9
Sunday
5th Jul
31

15

15

8
Monday
6th Jul
33

15

9

7
Tuesday
7th Jul
37

17

15

8
Wednesday
8th Jul
32

19

14

8

5-day weather forecast updated at 04:01 on Sunday 5th July 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 Saturday 4th July 2026

Expect clear skies in Lewiston, Idaho with a maximum temperature of 33°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 16 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the north-west.

33
°C maximum temperature
15
°C minimum temperature
clear skies
16
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
19
kph wind from NW

Lewiston weather for Sunday 5th July 2026

Expect clear skies in Lewiston, Idaho with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 15 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the north-west.

31
°C maximum temperature
15
°C minimum temperature
clear skies
15
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
12
kph wind from NW

Lewiston weather for Monday 6th July 2026

Expect scattered clouds in Lewiston, Idaho with a maximum temperature of 33°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 6 kph from the east.

33
°C maximum temperature
15
°C minimum temperature
scattered clouds
9
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
6
kph wind from E

Lewiston weather for Tuesday 7th July 2026

Expect clear skies in Lewiston, Idaho with a maximum temperature of 37°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 15 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the north.

37
°C maximum temperature
17
°C minimum temperature
clear skies
15
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
8
kph wind from N

Lewiston weather for Wednesday 8th July 2026

Expect scattered clouds in Lewiston, Idaho with a maximum temperature of 32°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 27 kph from the west.