Sun Valley weather live forecast

Today's maximum temperature in Sun Valley is expected to be 23°C. Select a day from the live weather forecast for Sun Valley, Idaho, USA for more weather parameters.

Saturday
23rd May
23

4

9

UV6
Sunday
24th May
25

8

10

UV8
Monday
25th May
26

9

7

UV8
Tuesday
26th May
17

7

1

UV7
Wednesday
27th May
15

4

3

UV3

5-day weather forecast updated at 04:00 on Saturday 23rd May 2026 GMT

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

Sun Valley weather forecast by day

Below are the detailed weather forecasts for Sun Valley for the next 5 days.

Sun Valley weather for Saturday 23rd May 2026

Expect scattered clouds in Sun Valley, Idaho with a maximum temperature of 23°C, maximum UV of 6 (High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the west.

23
°C maximum temperature
4
°C minimum temperature
scattered clouds
9
hours of sunshine
UV6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
16
kph wind from W

Sun Valley weather for Sunday 24th May 2026

Expect scattered clouds in Sun Valley, Idaho with a maximum temperature of 25°C, maximum UV of 8 (Very High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the south-west.

25
°C maximum temperature
8
°C minimum temperature
scattered clouds
10
hours of sunshine
UV8
UV index (Very High)
0
mm of rainfall expected
0
no heat & humidity
15
kph wind from SW

Sun Valley weather for Monday 25th May 2026

Expect isolated thunderstorms in Sun Valley, Idaho with a maximum temperature of 26°C, maximum UV of 8 (Very High) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 37% chance of some rain and a gentle breeze of 19 kph from the south.

26
°C maximum temperature
9
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
UV8
UV index (Very High)
37
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
19
kph wind from S

Sun Valley weather for Tuesday 26th May 2026

Expect mostly cloudy with light rain in Sun Valley, Idaho with a maximum temperature of 17°C, maximum UV of 7 (High) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 56% chance of some rain and a gentle breeze of 16 kph from the south.

17
°C maximum temperature
7
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
UV7
UV index (High)
56
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
16
kph wind from S

Sun Valley weather for Wednesday 27th May 2026

Expect mostly cloudy with light rain in Sun Valley, Idaho with a maximum temperature of 15°C, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 47% chance of some rain and a light breeze of 11 kph from the south-east.