Lewiston weather live forecast

Today's maximum temperature in Lewiston is expected to be 30°C. Select a day from the live weather forecast for Lewiston, Idaho, USA for more weather parameters.

Monday
25th May
30

11

6

UV7
Tuesday
26th May
17

12

0

UV3
Wednesday
27th May
26

11

7

UV5
Thursday
28th May
31

15

10

UV7
Friday
29th May
27

15

4

UV5

5-day weather forecast updated at 04:01 on Tuesday 26th May 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 Monday 25th May 2026

Expect mostly cloudy with light rain in Lewiston, Idaho with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 61% chance of some rain and a moderate breeze of 26 kph from the west.

30
°C maximum temperature
11
°C minimum temperature
mostly cloudy with light rain
6
hours of sunshine
UV7
UV index (High)
61
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
26
kph wind from W

Lewiston weather for Tuesday 26th May 2026

Expect mostly cloudy with light rain in Lewiston, Idaho with a maximum temperature of 17°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 51% chance of some rain and a moderate breeze of 23 kph from the west.

17
°C maximum temperature
12
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
UV3
UV index (Moderate)
51
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
23
kph wind from W

Lewiston weather for Wednesday 27th May 2026

Expect broken clouds in Lewiston, Idaho with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 5 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 6 kph from the north-west.

26
°C maximum temperature
11
°C minimum temperature
broken clouds
7
hours of sunshine
UV5
UV index (Moderate)
0
mm of rainfall expected
L
low heat & humidity
6
kph wind from NW

Lewiston weather for Thursday 28th May 2026

Expect isolated thunderstorms in Lewiston, Idaho with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 10 hours of bright sunshine. There are 5-10 mm of rainfall expected with 70% chance of some rain and a light breeze of 10 kph from the south.

31
°C maximum temperature
15
°C minimum temperature
isolated thunderstorms
10
hours of sunshine
UV7
UV index (High)
70
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
10
kph wind from S

Lewiston weather for Friday 29th May 2026

Expect isolated thunderstorms in Lewiston, Idaho with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 79% chance of some rain and a gentle breeze of 13 kph from the west.