Sun Valley weather live forecast

Today's maximum temperature in Sun Valley is expected to be 1°C. Select a day from the live weather forecast for Sun Valley, Idaho, USA for more weather parameters.

Thursday
16th Apr
1

-6

6

6
Friday
17th Apr
5

-8

13

7
Saturday
18th Apr
10

-6

7

8
Sunday
19th Apr
17

-2

7

8
Monday
20th Apr
19

2

9

7

5-day weather forecast updated at 04:01 on Thursday 16th April 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 16th April 2026

Expect clear skies with flurries of snow in Sun Valley, Idaho with a maximum temperature of 1°C, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 0-2 cm of snow expected with 38% chance of some snow and a gentle breeze of 18 kph from the north-west.

1
°C maximum temperature
-6
°C minimum temperature
clear skies with flurries of snow
6
hours of sunshine
6
UV index (High)
38
% chance of some snow
<2
cm of snow expected
-3
°C wind chill
18
kph wind from NW

Sun Valley weather for Friday 17th April 2026

Expect clear skies in Sun Valley, Idaho with a maximum temperature of 5°C, maximum UV of 7 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the north-west.

5
°C maximum temperature
-8
°C minimum temperature
clear skies
13
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
3
°C wind chill
12
kph wind from NW

Sun Valley weather for Saturday 18th April 2026

Expect broken clouds in Sun Valley, Idaho with a maximum temperature of 10°C, maximum UV of 8 (Very High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the south.

10
°C maximum temperature
-6
°C minimum temperature
broken clouds
7
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
9
°C wind chill
9
kph wind from S

Sun Valley weather for Sunday 19th April 2026

Expect scattered clouds in Sun Valley, Idaho with a maximum temperature of 17°C, maximum UV of 8 (Very High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the south-east.

17
°C maximum temperature
-2
°C minimum temperature
scattered clouds
7
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
17
°C wind chill
12
kph wind from SE

Sun Valley weather for Monday 20th April 2026

Expect sunshine and showers in Sun Valley, Idaho with a maximum temperature of 19°C, maximum UV of 7 (High) and 9 hours of bright sunshine. There are 0-2 mm of rainfall expected with 25% chance of some rain and a gentle breeze of 16 kph from the south.