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.

Sunday
14th Dec
10

-3

9

2
Monday
15th Dec
9

-3

6

2
Tuesday
16th Dec
9

-1

3

1
Wednesday
17th Dec
3

-7

4

1
Thursday
18th Dec
0

-10

0

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 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 8 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
0
no heat & humidity
8
kph wind from N

Sun Valley weather for Monday 15th December 2025

Expect sunshine and showers in Sun Valley, Idaho with a maximum temperature of 9°C, 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 7 kph from the west.

9
°C maximum temperature
-3
°C minimum temperature
sunshine and showers
6
hours of sunshine
2
UV index (Low)
13
% chance of some rain
<2
mm of rainfall expected
9
°C wind chill
7
kph 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 9°C, 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 15 kph from the south-west.

9
°C maximum temperature
-1
°C 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
7
°C wind chill
15
kph 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 3°C, 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 27 kph from the west.

3
°C maximum temperature
-7
°C minimum temperature
cloudy with sleet or snow
4
hours of sunshine
1
UV index (Low)
73
% chance of some sleet or snow
<30
mm of sleet/snow expected
-3
°C wind chill
27
kph wind from W

Sun Valley weather for Thursday 18th December 2025

Expect cloudy with some snow in Sun Valley, Idaho with a maximum temperature of 0°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 10-20 cm of snow expected with 91% chance of some snow and a light breeze of 10 kph from the south-west.