Weather in Sun Valley Lake
Sun Valley Lake has cold winters and warm summers. A typical July afternoon reaches 85°, a January night drops to 14°, and about 27 inches of snow falls in a normal winter. A typical November afternoon reaches 49°, and nights fall to 29°.
Getting the latest forecast from the National Weather Service…
Where today sits in Sun Valley Lake’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 Lake.
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 Lake itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Beaconsfield, IA (3 mi). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.