Sun Valley weather live forecast

Today's maximum temperature in Sun Valley is expected to be 32°C. Select a day from the live weather forecast for Sun Valley, Idaho, USA for more weather parameters.

Monday
10th Aug
32

11

14

8
Tuesday
11th Aug
31

10

12

7
Wednesday
12th Aug
29

12

8

6
Thursday
13th Aug
25

11

9

7
Friday
14th Aug
22

9

5

6

5-day weather forecast updated at 04:00 on Monday 10th August 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 Monday 10th August 2026

Expect clear skies in Sun Valley, Idaho with a maximum temperature of 32°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the west.

32
°C maximum temperature
11
°C minimum temperature
clear skies
14
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
13
kph wind from W

Sun Valley weather for Tuesday 11th August 2026

Expect scattered clouds in Sun Valley, Idaho with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south-west.

31
°C maximum temperature
10
°C minimum temperature
scattered clouds
12
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
11
kph wind from SW

Sun Valley weather for Wednesday 12th August 2026

Expect scattered clouds in Sun Valley, Idaho with a maximum temperature of 29°C, low levels of heat & humidity, maximum UV of 6 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the south-west.

29
°C maximum temperature
12
°C minimum temperature
scattered clouds
8
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
9
kph wind from SW

Sun Valley weather for Thursday 13th August 2026

Expect broken clouds in Sun Valley, Idaho with a maximum temperature of 25°C, maximum UV of 7 (High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 6 kph from the north.

25
°C maximum temperature
11
°C minimum temperature
broken clouds
9
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
25
°C wind chill
6
kph wind from N

Sun Valley weather for Friday 14th August 2026

Expect mostly cloudy with rain in Sun Valley, Idaho with a maximum temperature of 22°C, maximum UV of 6 (High) and 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 54% chance of some rain and little or no wind of 4 kph from the south.