Harman US

Waltonville, IL Weather & Growing Conditions

This Afternoon
63°F
Mostly Cloudy
Mostly cloudy. High near 63, with temperatures falling to around 57 in the afternoon. West wind 6 to 12 mph.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 63°F Mostly Cloudy 6 to 12 mph W 0%
Tonight 45°F Partly Cloudy 5 mph WSW 0%
Thursday 66°F Sunny 5 to 10 mph WSW 1%
Thursday Night 44°F Partly Cloudy 5 mph NW 1%
Friday 57°F Partly Sunny 5 to 13 mph NNW 1%
Friday Night 34°F Mostly Clear 2 to 7 mph N 0%
Saturday 55°F Sunny 2 to 6 mph NNW 0%
Saturday Night 32°F Mostly Clear 2 mph NNW 0%
Sunday 59°F Sunny 1 to 6 mph WNW 0%
Sunday Night 34°F Mostly Clear 1 mph NW 0%
Monday 64°F Sunny 0 to 5 mph SSW 0%
Monday Night 38°F Clear 2 mph SW 1%
Tuesday 66°F Sunny 1 to 5 mph W 0%
Tuesday Night 40°F Mostly Clear 1 mph NW 3%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Waltonville, IL

Last spring frost
Apr 4
First fall frost
Oct 27
Growing season
204 days
Hardiness zone
6b

Explore more for Waltonville, IL: full frost dates · planting calendar · Illinois frost dates

Climate data from the nearest NOAA station, Rend Lake Dam, Il (10.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.