Sun Valley weather live forecast

Today's maximum temperature in Sun Valley is expected to be 45°F. Select a day from the live weather forecast for Sun Valley, Idaho, USA for more weather parameters.

Thursday
5th Mar
45

28

4

2
Friday
6th Mar
43

25

4

4
Saturday
7th Mar
50

23

7

4
Sunday
8th Mar
57

28

5

5
Monday
9th Mar
55

34

9

4

5-day weather forecast updated at 04:01 on Thursday 5th March 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 Thursday 5th March 2026

Expect mostly cloudy with light snow in Sun Valley, Idaho with a maximum temperature of 45°F, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 0-2 cm of snow expected with 18% chance of some snow and a gentle breeze of 10 mph from the north-west.

45
°F maximum temperature
28
°F minimum temperature
mostly cloudy with light snow
4
hours of sunshine
2
UV index (Low)
18
% chance of some snow
<2
cm of snow expected
39
°F wind chill
10
mph wind from NW

Sun Valley weather for Friday 6th March 2026

Expect broken clouds in Sun Valley, Idaho with a maximum temperature of 43°F, maximum UV of 4 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 9 mph from the north.

43
°F maximum temperature
25
°F minimum temperature
broken clouds
4
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
39
°F wind chill
9
mph wind from N

Sun Valley weather for Saturday 7th March 2026

Expect scattered clouds in Sun Valley, Idaho with a maximum temperature of 50°F, maximum UV of 4 (Moderate) and 7 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
23
°F minimum temperature
scattered clouds
7
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
46
°F wind chill
5
mph wind from N

Sun Valley weather for Sunday 8th March 2026

Expect broken clouds in Sun Valley, Idaho with a maximum temperature of 57°F, maximum UV of 5 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 mph from the south-west.

57
°F maximum temperature
28
°F minimum temperature
broken clouds
5
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
57
°F wind chill
7
mph wind from SW

Sun Valley weather for Monday 9th March 2026

Expect scattered clouds in Sun Valley, Idaho with a maximum temperature of 55°F, maximum UV of 4 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 14 mph from the west.