Sun Valley weather live forecast

Today's maximum temperature in Sun Valley is expected to be 52°F. Select a day from the live weather forecast for Sun Valley, Idaho, USA for more weather parameters.

Saturday
13th Dec
52

28

6

2
Sunday
14th Dec
50

27

9

2
Monday
15th Dec
48

27

6

2
Tuesday
16th Dec
48

30

3

1
Wednesday
17th Dec
37

19

4

1

5-day weather forecast updated at 04:01 on Sunday 14th 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 Saturday 13th December 2025

Expect scattered clouds in Sun Valley, Idaho with a maximum temperature of 52°F, maximum UV of 2 (Low) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 mph from the north-west.

52
°F maximum temperature
28
°F minimum temperature
scattered clouds
6
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
7
mph wind from NW

Sun Valley weather for Sunday 14th December 2025

Expect clear skies in Sun Valley, Idaho with a maximum temperature of 50°F, maximum UV of 2 (Low) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 5 mph from the north.

50
°F maximum temperature
27
°F minimum temperature
clear skies
9
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
5
mph wind from N

Sun Valley weather for Monday 15th December 2025

Expect sunshine and showers in Sun Valley, Idaho with a maximum temperature of 48°F, maximum UV of 2 (Low) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 13% chance of some rain and a light breeze of 4 mph from the west.

48
°F maximum temperature
27
°F minimum temperature
sunshine and showers
6
hours of sunshine
2
UV index (Low)
13
% chance of some rain
<2
mm of rainfall expected
48
°F wind chill
4
mph wind from W

Sun Valley weather for Tuesday 16th December 2025

Expect cloudy with sleet or snow in Sun Valley, Idaho with a maximum temperature of 48°F, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 0-2 mm of sleet/snow expected with 88% chance of some sleet or snow and a gentle breeze of 9 mph from the south-west.

48
°F maximum temperature
30
°F minimum temperature
cloudy with sleet or snow
3
hours of sunshine
1
UV index (Low)
88
% chance of some sleet or snow
<2
mm of sleet/snow expected
45
°F wind chill
9
mph wind from SW

Sun Valley weather for Wednesday 17th December 2025

Expect cloudy with sleet or snow in Sun Valley, Idaho with a maximum temperature of 37°F, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 20-30 mm of sleet/snow expected with 73% chance of some sleet or snow and a moderate breeze of 17 mph from the west.