Sun Valley has a dry climate
Sun Valley has chilly, snowy winters and warm summers, with very little rain. A typical July afternoon reaches 90°, a January night drops to 25°, and about 33 inches of snow falls in a normal winter. A typical November afternoon reaches 54°, and nights fall to 30°.
Getting the latest forecast from the National Weather Service…
What stands out about Sun Valley’s weather
Read from 30 years of NOAA records. Each one opens the full story on the Climate page.
Where today sits in Sun Valley’s year
Typical highs and lows month by month, from 30 years of NOAA records.
Weather talk
Road reports, first frosts and storm memories from neighbors in Sun Valley.
Your answer becomes a post in Town Square.
Forecast, conditions and alerts: National Weather Service. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Temperatures and rainfall come from NOAA’s gridded normals for Sun Valley itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Reno 1.4 Nne, NV (4 mi, snow) and Stead, NV (6 mi, frost, heat and degree days). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.