Sun Valley weather live forecast

Today's maximum temperature in Sun Valley is expected to be 23°C. Select a day from the live weather forecast for Sun Valley, Idaho, USA for more weather parameters.

Friday
20th Mar
23

5

10

7
Saturday
21st Mar
21

5

5

7
Sunday
22nd Mar
15

-1

12

6
Monday
23rd Mar
16

-2

4

7
Tuesday
24th Mar
19

1

11

6

5-day weather forecast updated at 04:01 on Friday 20th March 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 20th March 2026

Expect scattered clouds in Sun Valley, Idaho with a maximum temperature of 23°C, maximum UV of 7 (High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the north.

23
°C maximum temperature
5
°C minimum temperature
scattered clouds
10
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
8
kph wind from N

Sun Valley weather for Saturday 21st March 2026

Expect scattered clouds in Sun Valley, Idaho with a maximum temperature of 21°C, maximum UV of 7 (High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the west.

21
°C maximum temperature
5
°C minimum temperature
scattered clouds
5
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
21
°C wind chill
16
kph wind from W

Sun Valley weather for Sunday 22nd March 2026

Expect scattered clouds in Sun Valley, Idaho with a maximum temperature of 15°C, maximum UV of 6 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the north-west.

15
°C maximum temperature
-1
°C minimum temperature
scattered clouds
12
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
15
°C wind chill
9
kph wind from NW

Sun Valley weather for Monday 23rd March 2026

Expect broken clouds in Sun Valley, Idaho with a maximum temperature of 16°C, maximum UV of 7 (High) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the north.

16
°C maximum temperature
-2
°C minimum temperature
broken clouds
4
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
16
°C wind chill
10
kph wind from N

Sun Valley weather for Tuesday 24th March 2026

Expect scattered clouds in Sun Valley, Idaho with a maximum temperature of 19°C, maximum UV of 6 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south-west.