Sun Valley weather live forecast

Today's maximum temperature in Sun Valley is expected to be 2°C. Select a day from the live weather forecast for Sun Valley, Idaho, USA for more weather parameters.

Wednesday
7th Jan
2

-6

4

1
Thursday
8th Jan
-1

-12

9

1
Friday
9th Jan
-1

-12

8

1
Saturday
10th Jan
0

-10

4

2
Sunday
11th Jan
3

-8

1

1

5-day weather forecast updated at 04:01 on Wednesday 7th 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 Wednesday 7th January 2026

Expect mostly cloudy with light snow in Sun Valley, Idaho with a maximum temperature of 2°C, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 2-5 cm of snow expected with 61% chance of some snow and a gentle breeze of 14 kph from the south.

2
°C maximum temperature
-6
°C minimum temperature
mostly cloudy with light snow
4
hours of sunshine
1
UV index (Low)
61
% chance of some snow
<5
cm of snow expected
-2
°C wind chill
14
kph wind from S

Sun Valley weather for Thursday 8th January 2026

Expect scattered clouds in Sun Valley, Idaho with a maximum temperature of -1°C, maximum UV of 1 (Low) and 9 hours of bright sunshine. There are 0 cm of snow expected and a gentle breeze of 16 kph from the north-west.

-1
°C maximum temperature
-12
°C minimum temperature
scattered clouds
9
hours of sunshine
1
UV index (Low)
0
cm of snow expected
-6
°C wind chill
16
kph wind from NW

Sun Valley weather for Friday 9th January 2026

Expect scattered clouds in Sun Valley, Idaho with a maximum temperature of -1°C, maximum UV of 1 (Low) and 8 hours of bright sunshine. There are 0 cm of snow expected and a light breeze of 9 kph from the north-west.

-1
°C maximum temperature
-12
°C minimum temperature
scattered clouds
8
hours of sunshine
1
UV index (Low)
0
cm of snow expected
-4
°C wind chill
9
kph wind from NW

Sun Valley weather for Saturday 10th January 2026

Expect scattered clouds in Sun Valley, Idaho with a maximum temperature of 0°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 0 cm of snow expected and a light breeze of 9 kph from the north.

0
°C maximum temperature
-10
°C minimum temperature
scattered clouds
4
hours of sunshine
2
UV index (Low)
0
cm of snow expected
-3
°C wind chill
9
kph wind from N

Sun Valley weather for Sunday 11th January 2026

Expect broken clouds in Sun Valley, Idaho with a maximum temperature of 3°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the north.