Lewiston weather live forecast

Today's maximum temperature in Lewiston is expected to be 18°C. Select a day from the live weather forecast for Lewiston, Idaho, USA for more weather parameters.

Sunday
12th Apr
18

6

3

4
Monday
13th Apr
14

8

4

2
Tuesday
14th Apr
15

5

2

4
Wednesday
15th Apr
11

3

2

4
Thursday
16th Apr
10

1

4

5

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

Expect mostly cloudy with light rain in Lewiston, Idaho with a maximum temperature of 18°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 78% chance of some rain and a light breeze of 9 kph from the west.

18
°C maximum temperature
6
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
4
UV index (Moderate)
78
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
9
kph wind from W

Lewiston weather for Monday 13th April 2026

Expect mostly cloudy with rain in Lewiston, Idaho with a maximum temperature of 14°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 58% chance of some rain and a light breeze of 12 kph from the south-west.

14
°C maximum temperature
8
°C minimum temperature
mostly cloudy with rain
4
hours of sunshine
2
UV index (Low)
58
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
12
kph wind from SW

Lewiston weather for Tuesday 14th April 2026

Expect mostly cloudy with light rain in Lewiston, Idaho with a maximum temperature of 15°C, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 71% chance of some rain and a gentle breeze of 18 kph from the west.

15
°C maximum temperature
5
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
4
UV index (Moderate)
71
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
18
kph wind from W

Lewiston weather for Wednesday 15th April 2026

Expect cloudy with sleet or snow in Lewiston, Idaho with a maximum temperature of 11°C, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 5-10 mm of sleet/snow expected with 80% chance of some sleet or snow and a moderate breeze of 21 kph from the west.

11
°C maximum temperature
3
°C minimum temperature
cloudy with sleet or snow
2
hours of sunshine
4
UV index (Moderate)
80
% chance of some sleet or snow
<10
mm of sleet/snow expected
11
°C wind chill
21
kph wind from W

Lewiston weather for Thursday 16th April 2026

Expect cloudy with sleet or snow in Lewiston, Idaho with a maximum temperature of 10°C, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 0-2 mm of sleet/snow expected with 48% chance of some sleet or snow and a gentle breeze of 18 kph from the west.