Sun Valley weather live forecast

Today's maximum temperature in Sun Valley is expected to be 5°C. Select a day from the live weather forecast for Sun Valley, Idaho, USA for more weather parameters.

Monday
8th Dec
5

-3

5

1
Tuesday
9th Dec
7

0

3

1
Wednesday
10th Dec
9

1

3

1
Thursday
11th Dec
10

1

4

1
Friday
12th Dec
10

-1

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 5°C, maximum UV of 1 (Low) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south.

5
°C maximum temperature
-3
°C minimum temperature
broken clouds
5
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
2
°C wind chill
11
kph 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 7°C, 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 16 kph from the west.

7
°C maximum temperature
0
°C 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
5
°C wind chill
16
kph 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 9°C, 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 18 kph from the west.

9
°C maximum temperature
1
°C 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
6
°C wind chill
18
kph wind from W

Sun Valley weather for Thursday 11th December 2025

Expect broken clouds in Sun Valley, Idaho with a maximum temperature of 10°C, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the west.

10
°C maximum temperature
1
°C minimum temperature
broken clouds
4
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
15
kph wind from W

Sun Valley weather for Friday 12th December 2025

Expect scattered clouds in Sun Valley, Idaho with a maximum temperature of 10°C, maximum UV of 1 (Low) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the north-west.