Sun Valley weather live forecast

Today's maximum temperature in Sun Valley is expected to be 10°C. Select a day from the live weather forecast for Sun Valley, Idaho, USA for more weather parameters.

Friday
12th Dec
10

-1

6

2
Saturday
13th Dec
10

-2

7

2
Sunday
14th Dec
10

-3

9

2
Monday
15th Dec
9

-4

4

2
Tuesday
16th Dec
8

-1

4

1

5-day weather forecast updated at 04:01 on Friday 12th 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 Friday 12th December 2025

Expect scattered clouds in Sun Valley, Idaho with a maximum temperature of 10°C, maximum UV of 2 (Low) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the north-west.

10
°C maximum temperature
-1
°C minimum temperature
scattered clouds
6
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
8
°C wind chill
11
kph wind from NW

Sun Valley weather for Saturday 13th December 2025

Expect scattered clouds in Sun Valley, Idaho with a maximum temperature of 10°C, maximum UV of 2 (Low) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the north.

10
°C maximum temperature
-2
°C minimum temperature
scattered clouds
7
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
8
°C wind chill
11
kph wind from N

Sun Valley weather for Sunday 14th December 2025

Expect clear skies in Sun Valley, Idaho with a maximum temperature of 10°C, maximum UV of 2 (Low) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the north.

10
°C maximum temperature
-3
°C minimum temperature
clear skies
9
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
9
°C wind chill
7
kph wind from N

Sun Valley weather for Monday 15th December 2025

Expect scattered 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 a light breeze of 7 kph from the north.

9
°C maximum temperature
-4
°C minimum temperature
scattered clouds
4
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
8
°C wind chill
7
kph wind from N

Sun Valley weather for Tuesday 16th December 2025

Expect cloudy with sleet or snow in Sun Valley, Idaho with a maximum temperature of 8°C, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 0-2 mm of sleet/snow expected with 71% chance of some sleet or snow and a gentle breeze of 19 kph from the south-west.