Sun Valley weather live forecast

Today's maximum temperature in Sun Valley is expected to be 18°C. Select a day from the live weather forecast for Sun Valley, Idaho, USA for more weather parameters.

Saturday
10th Oct
18

7

4

4
Sunday
11th Oct
10

3

1

2
Monday
12th Oct
7

0

0

3
Tuesday
13th Oct
12

-1

2

3
Wednesday
14th Oct
14

-1

11

4

5-day weather forecast updated at 04:00 on Saturday 10th 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 Saturday 10th October 2026

Expect broken clouds in Sun Valley, Idaho with a maximum temperature of 18°C, maximum UV of 4 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the south.

18
°C maximum temperature
7
°C minimum temperature
broken clouds
4
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
18
°C wind chill
12
kph wind from S

Sun Valley weather for Sunday 11th October 2026

Expect mostly cloudy with rain in Sun Valley, Idaho with a maximum temperature of 10°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 79% chance of some rain and little or no wind of 2 kph from the south.

10
°C maximum temperature
3
°C minimum temperature
mostly cloudy with rain
1
hour of sunshine
2
UV index (Low)
79
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
2
kph wind from S

Sun Valley weather for Monday 12th October 2026

Expect overcast with light rain in Sun Valley, Idaho with a maximum temperature of 7°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 76% chance of some rain and little or no wind of 3 kph from the south.

7
°C maximum temperature
0
°C minimum temperature
overcast with light rain
0
hours of sunshine
3
UV index (Moderate)
76
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
3
kph wind from S

Sun Valley weather for Tuesday 13th October 2026

Expect broken clouds in Sun Valley, Idaho with a maximum temperature of 12°C, maximum UV of 3 (Moderate) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 3 kph from the north.

12
°C maximum temperature
-1
°C minimum temperature
broken clouds
2
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
3
kph wind from N

Sun Valley weather for Wednesday 14th October 2026

Expect clear skies in Sun Valley, Idaho with a maximum temperature of 14°C, maximum UV of 4 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 4 kph from the north.