Sun Valley weather live forecast

Today's maximum temperature in Sun Valley is expected to be 4°C. Select a day from the live weather forecast for Sun Valley, Idaho, USA for more weather parameters.

Thursday
29th Jan
4

-9

2

2
Friday
30th Jan
5

-8

1

2
Saturday
31st Jan
8

-7

1

2
Sunday
1st Feb
9

-4

4

2
Monday
2nd Feb
7

-6

7

2

5-day weather forecast updated at 04:01 on Thursday 29th January 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 29th January 2026

Expect broken clouds in Sun Valley, Idaho with a maximum temperature of 4°C, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the north.

4
°C maximum temperature
-9
°C minimum temperature
broken clouds
2
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
2
°C wind chill
8
kph wind from N

Sun Valley weather for Friday 30th January 2026

Expect broken clouds in Sun Valley, Idaho with a maximum temperature of 5°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 6 kph from the north.

5
°C maximum temperature
-8
°C minimum temperature
broken clouds
1
hour of sunshine
2
UV index (Low)
0
mm of rainfall expected
4
°C wind chill
6
kph wind from N

Sun Valley weather for Saturday 31st January 2026

Expect broken clouds in Sun Valley, Idaho with a maximum temperature of 8°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the north.

8
°C maximum temperature
-7
°C minimum temperature
broken clouds
1
hour of sunshine
2
UV index (Low)
0
mm of rainfall expected
7
°C wind chill
7
kph wind from N

Sun Valley weather for Sunday 1st February 2026

Expect broken clouds in Sun Valley, Idaho with a maximum temperature of 9°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the north.

9
°C maximum temperature
-4
°C minimum temperature
broken clouds
4
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
9
°C wind chill
5
kph wind from N

Sun Valley weather for Monday 2nd February 2026

Expect cloudy with sleet or snow in Sun Valley, Idaho with a maximum temperature of 7°C, maximum UV of 2 (Low) and 7 hours of bright sunshine. There are 0-2 mm of sleet/snow expected with 8% chance of some sleet or snow and a light breeze of 9 kph from the north-west.