Sun Valley weather live forecast

Today's maximum temperature in Sun Valley is expected to be 8°C. Select a day from the live weather forecast for Sun Valley, Idaho, USA for more weather parameters.

Friday
23rd Oct
8

2

1

1
Saturday
24th Oct
10

-2

7

3
Sunday
25th Oct
13

-3

5

4
Monday
26th Oct
12

-2

1

3
Tuesday
27th Oct
8

-3

9

2

5-day weather forecast updated at 04:01 on Saturday 24th 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 Friday 23rd October 2026

Expect mostly cloudy with rain in Sun Valley, Idaho with a maximum temperature of 8°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 88% chance of some rain and little or no wind of 5 kph from the south-west.

8
°C maximum temperature
2
°C minimum temperature
mostly cloudy with rain
1
hour of sunshine
1
UV index (Low)
88
% chance of some rain
<20
mm of rainfall expected
8
°C wind chill
5
kph wind from SW

Sun Valley weather for Saturday 24th October 2026

Expect scattered clouds in Sun Valley, Idaho with a maximum temperature of 10°C, maximum UV of 3 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 3 kph from the north.

10
°C maximum temperature
-2
°C minimum temperature
scattered clouds
7
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
10
°C wind chill
3
kph wind from N

Sun Valley weather for Sunday 25th October 2026

Expect fog in low lying areas in Sun Valley, Idaho with a maximum temperature of 13°C, maximum UV of 4 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 4 kph from the north.

13
°C maximum temperature
-3
°C minimum temperature
fog in low lying areas
5
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
4
kph wind from N

Sun Valley weather for Monday 26th October 2026

Expect mostly cloudy with light rain in Sun Valley, Idaho with a maximum temperature of 12°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 41% chance of some rain and a light breeze of 7 kph from the south.

12
°C maximum temperature
-2
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
3
UV index (Moderate)
41
% chance of some rain
<5
mm of rainfall expected
12
°C wind chill
7
kph wind from S

Sun Valley weather for Tuesday 27th October 2026

Expect clear skies with flurries of snow in Sun Valley, Idaho with a maximum temperature of 8°C, maximum UV of 2 (Low) and 9 hours of bright sunshine. There are 0-2 cm of snow expected with 44% chance of some snow and a light breeze of 8 kph from the south-west.