Weather in Ontario
Ontario has cold, snowy winters and pleasant summers. A typical July afternoon reaches 82°, a January night drops to 8°, and about 41 inches of snow falls in a normal winter.
Getting the latest forecast from the National Weather Service…
Where today sits in Ontario’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 Ontario.
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 Ontario itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Ontario 3e, WI (3 mi, snow) and Cashton 3nnw, WI (11 mi, frost, heat and degree days). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.