Waltonville, IL Weather & Growing Conditions
Today
99°F
Mostly Sunny
Mostly sunny. High near 99, with temperatures falling to around 97 in the afternoon. West southwest wind 5 to 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 99°F | Mostly Sunny | 5 to 8 mph WSW | 3% |
| Tonight | 72°F | Partly Cloudy | 5 mph SSW | 2% |
| Sunday | 96°F | Mostly Sunny | 3 to 7 mph WSW | 1% |
| Sunday Night | 68°F | Mostly Cloudy then Chance Showers And Thunderstorms | 7 mph NNE | 44% |
| Monday | 84°F | Showers And Thunderstorms Likely | 5 to 12 mph NNE | 62% |
| Monday Night | 60°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 6 to 12 mph NNE | 62% |
| Tuesday | 75°F | Chance Showers And Thunderstorms | 8 to 13 mph NNE | 33% |
| Tuesday Night | 55°F | Mostly Cloudy | 5 to 13 mph N | 14% |
| Wednesday | 76°F | Mostly Sunny | 7 to 12 mph N | 2% |
| Wednesday Night | 55°F | Partly Cloudy | 2 to 10 mph N | 0% |
| Thursday | 77°F | Mostly Sunny | 3 to 9 mph N | 2% |
| Thursday Night | 57°F | Partly Cloudy | 2 to 8 mph NNE | 4% |
| Friday | 78°F | Mostly Sunny | 3 to 10 mph NNE | 4% |
| Friday Night | 57°F | Partly Cloudy | 3 to 7 mph NE | 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 Sep 19, 2026.