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.

Tuesday
20th Jan
5

-11

7

2
Wednesday
21st Jan
5

-10

1

2
Thursday
22nd Jan
2

-7

2

2

5-day weather forecast updated at 04:02 on Saturday 17th January 2026 GMT

More about Sun Valley

Sun Valley by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Idaho

Travelbag: up to 50% off 2026 holidays

Sale

Save up to 50% on 2026 holidays & tours with Travelbag
Book selected stays in popular destinations around the world
Travel before 31st December 2026 (inclusive)

Go to Travelbag deal >>

Expires at 23:59 on Saturday 31st Jan 2026 · View all Travelbag offers

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 Tuesday 20th January 2026

Expect scattered clouds in Sun Valley, Idaho with a maximum temperature of 5°C, maximum UV of 2 (Low) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the north.

5
°C maximum temperature
-11
°C minimum temperature
scattered clouds
7
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
3
°C wind chill
7
kph wind from N

Sun Valley weather for Wednesday 21st 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 a light breeze of 8 kph from the north-west.

5
°C maximum temperature
-10
°C minimum temperature
broken clouds
1
hour of sunshine
2
UV index (Low)
0
mm of rainfall expected
3
°C wind chill
8
kph wind from NW

Sun Valley weather for Thursday 22nd January 2026

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