Alton gets less snow than most of Missouri
Alton has chilly winters and warm summers, with plenty of rain. A typical July afternoon reaches 89°, a January night drops to 24°, and about 4 inches of snow falls in a normal winter. A typical November afternoon reaches 58°, and nights fall to 35°.
Getting the latest forecast from the National Weather Service…
What stands out about Alton’s weather
Read from 30 years of NOAA records. Each one opens the full story on the Climate page.
Where today sits in Alton’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 Alton.
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 Alton itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Alton, MO (1 mi). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.