Sun Valley climate

Typical historical weather for Sun Valley, United States, averaged across 10 years of hourly climate data. Pick a date for a specific day.

Want today's actual conditions instead? See the current forecast for Sun Valley.

Annual average

10.8°C

across all months

Warmest month

28.2°C

Jul average high

Coolest month

-5.1°C

Jan average low

Annual rainfall

1315mm

total per year

Monthly averages

Average daily high/low temperature (band) and monthly rainfall (bars).

● Avg high● Avg low▮ Rainfall

Records on file

Hottest day

34.7°C

24 June 2025

Coldest day

-21.5°C

22 January 2025

Wettest day

136mm

1 September 2021

Windiest day

8.3m/s

25 February 2019