Sun Valley weather live forecast

Today's maximum temperature in Sun Valley is expected to be 7°C. Select a day from the live weather forecast for Sun Valley, Idaho, USA for more weather parameters.

Wednesday
28th Oct
7

-4

7

2
Thursday
29th Oct
10

-4

1

3
Friday
30th Oct
10

1

0

1
Saturday
31st Oct
9

0

0

2
Sunday
1st Nov
9

-1

5

3

5-day weather forecast updated at 04:01 on Wednesday 28th October 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 28th October 2026

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

7
°C maximum temperature
-4
°C minimum temperature
scattered clouds
7
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
6
°C wind chill
7
kph wind from S

Sun Valley weather for Thursday 29th October 2026

Expect broken clouds in Sun Valley, Idaho with a maximum temperature of 10°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 4 kph from the north-east.

10
°C maximum temperature
-4
°C minimum temperature
broken clouds
1
hour of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
4
kph wind from NE

Sun Valley weather for Friday 30th October 2026

Expect mostly cloudy with light rain in Sun Valley, Idaho with a maximum temperature of 10°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 85% chance of some rain and little or no wind of 3 kph from the north-east.

10
°C maximum temperature
1
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
1
UV index (Low)
85
% chance of some rain
<5
mm of rainfall expected
10
°C wind chill
3
kph wind from NE

Sun Valley weather for Saturday 31st October 2026

Expect cloudy with sleet or snow in Sun Valley, Idaho with a maximum temperature of 9°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 2-5 mm of sleet/snow expected with 88% chance of some sleet or snow and little or no wind of 3 kph from the north.

9
°C maximum temperature
0
°C minimum temperature
cloudy with sleet or snow
0
hours of sunshine
2
UV index (Low)
88
% chance of some sleet or snow
<5
mm of sleet/snow expected
0
no heat & humidity
3
kph wind from N

Sun Valley weather for Sunday 1st November 2026

Expect cloudy with sleet or snow in Sun Valley, Idaho with a maximum temperature of 9°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 10-20 mm of sleet/snow expected with 64% chance of some sleet or snow and a light breeze of 7 kph from the north-west.