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

10.3°C

across all months

Warmest month

31.9°C

Jul average high

Coolest month

-4.5°C

Jan average low

Annual rainfall

501mm

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

38.2°C

15 July 2023

Coldest day

-19.9°C

24 February 2017

Wettest day

74.8mm

24 October 2021

Windiest day

5.4m/s

2 February 2025