Sun Valley weather live forecast

Today's maximum temperature in Sun Valley is expected to be 19°C. Select a day from the live weather forecast for Sun Valley, Idaho, USA for more weather parameters.

Thursday
14th May
19

0

14

9
Friday
15th May
17

2

14

8
Saturday
16th May
14

2

5

5
Sunday
17th May
7

-2

3

4
Monday
18th May
12

-3

7

8

5-day weather forecast updated at 04:01 on Thursday 14th 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 Thursday 14th May 2026

Expect clear skies in Sun Valley, Idaho with a maximum temperature of 19°C, maximum UV of 9 (Very High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the west.

19
°C maximum temperature
0
°C minimum temperature
clear skies
14
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
19
°C wind chill
19
kph wind from W

Sun Valley weather for Friday 15th May 2026

Expect clear skies in Sun Valley, Idaho with a maximum temperature of 17°C, maximum UV of 8 (Very High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the west.

17
°C maximum temperature
2
°C minimum temperature
clear skies
14
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
0
no heat & humidity
21
kph wind from W

Sun Valley weather for Saturday 16th May 2026

Expect broken clouds in Sun Valley, Idaho with a maximum temperature of 14°C, maximum UV of 5 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the west.

14
°C maximum temperature
2
°C minimum temperature
broken clouds
5
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
22
kph wind from W

Sun Valley weather for Sunday 17th May 2026

Expect mostly cloudy with light rain in Sun Valley, Idaho with a maximum temperature of 7°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 40% chance of some rain and a gentle breeze of 15 kph from the north-west.

7
°C maximum temperature
-2
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
4
UV index (Moderate)
40
% chance of some rain
<5
mm of rainfall expected
5
°C wind chill
15
kph wind from NW

Sun Valley weather for Monday 18th May 2026

Expect scattered clouds in Sun Valley, Idaho with a maximum temperature of 12°C, maximum UV of 8 (Very High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the north.