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
11th Jul
33

18

13

9
Sunday
12th Jul
29

19

5

8
Monday
13th Jul
35

17

6

8
Tuesday
14th Jul
35

22

6

6
Wednesday
15th Jul
37

20

13

7

5-day weather forecast updated at 04:01 on Sunday 12th 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 11th July 2026

Expect scattered clouds in Lewiston, Idaho with a maximum temperature of 33°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the north-west.

33
°C maximum temperature
18
°C minimum temperature
scattered clouds
13
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
12
kph wind from NW

Lewiston weather for Sunday 12th July 2026

Expect broken clouds in Lewiston, Idaho with a maximum temperature of 29°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the north-west.

29
°C maximum temperature
19
°C minimum temperature
broken clouds
5
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
8
kph wind from NW

Lewiston weather for Monday 13th July 2026

Expect broken clouds in Lewiston, Idaho with a maximum temperature of 35°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 6 kph from the north-west.

35
°C maximum temperature
17
°C minimum temperature
broken clouds
6
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
6
kph wind from NW

Lewiston weather for Tuesday 14th July 2026

Expect broken clouds in Lewiston, Idaho with a maximum temperature of 35°C, high levels of heat & humidity, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the north.

35
°C maximum temperature
22
°C minimum temperature
broken clouds
6
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
H
high heat & humidity
7
kph wind from N

Lewiston weather for Wednesday 15th July 2026

Expect scattered clouds in Lewiston, Idaho with a maximum temperature of 37°C, high levels of heat & humidity, maximum UV of 7 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the north-west.