Sun Valley weather live forecast

Today's maximum temperature in Sun Valley is expected to be 41°F. Select a day from the live weather forecast for Sun Valley, Idaho, USA for more weather parameters.

Monday
8th Dec
41

27

5

1
Tuesday
9th Dec
45

32

3

1
Wednesday
10th Dec
48

34

3

1
Thursday
11th Dec
50

34

4

1
Friday
12th Dec
50

30

5

1

5-day weather forecast updated at 04:01 on Monday 8th December 2025 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 Monday 8th December 2025

Expect broken clouds in Sun Valley, Idaho with a maximum temperature of 41°F, maximum UV of 1 (Low) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 mph from the south.

41
°F maximum temperature
27
°F minimum temperature
broken clouds
5
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
36
°F wind chill
7
mph wind from S

Sun Valley weather for Tuesday 9th December 2025

Expect mostly cloudy with light rain in Sun Valley, Idaho with a maximum temperature of 45°F, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 36% chance of some rain and a gentle breeze of 10 mph from the west.

45
°F maximum temperature
32
°F minimum temperature
mostly cloudy with light rain
3
hours of sunshine
1
UV index (Low)
36
% chance of some rain
<2
mm of rainfall expected
41
°F wind chill
10
mph wind from W

Sun Valley weather for Wednesday 10th December 2025

Expect mostly cloudy with light rain in Sun Valley, Idaho with a maximum temperature of 48°F, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 36% chance of some rain and a gentle breeze of 11 mph from the west.

48
°F maximum temperature
34
°F minimum temperature
mostly cloudy with light rain
3
hours of sunshine
1
UV index (Low)
36
% chance of some rain
<5
mm of rainfall expected
43
°F wind chill
11
mph wind from W

Sun Valley weather for Thursday 11th December 2025

Expect broken clouds in Sun Valley, Idaho with a maximum temperature of 50°F, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 9 mph from the west.

50
°F maximum temperature
34
°F minimum temperature
broken clouds
4
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
9
mph wind from W

Sun Valley weather for Friday 12th December 2025

Expect scattered clouds in Sun Valley, Idaho with a maximum temperature of 50°F, maximum UV of 1 (Low) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 6 mph from the north-west.