Donnellson, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Donnellson, a village in Montgomery County, Illinois.
This Afternoon
72°F
Slight Chance T-storms
A slight chance of thunderstorms and a slight chance of rain before 2pm, then rain and a slight chance of thunderstorms. Cloudy. High near 72, with temperatures falling to around 68 in the afternoon. South wind 16 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 80%.
7-day forecast for Donnellson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Slight Chance T-storms | 16 to 22 mph S | 84% |
| Tonight | 53°F | Rain | 9 to 15 mph S | 98% |
| Wednesday | 62°F | Chance Rain Showers then Mostly Cloudy | 7 to 13 mph SW | 12% |
| Wednesday Night | 41°F | Partly Cloudy | 6 mph SW | 0% |
| Thursday | 64°F | Sunny | 5 to 12 mph W | 0% |
| Thursday Night | 41°F | Mostly Cloudy | 5 mph NW | 5% |
| Friday | 57°F | Partly Sunny | 5 to 9 mph NW | 7% |
| Friday Night | 35°F | Partly Cloudy | 2 to 6 mph N | 2% |
| Saturday | 55°F | Mostly Sunny | 3 mph NW | 0% |
| Saturday Night | 33°F | Partly Cloudy | 1 mph NW | 1% |
| Sunday | 61°F | Sunny | 1 to 6 mph W | 6% |
| Sunday Night | 33°F | Mostly Clear | 3 mph W | 4% |
| Monday | 64°F | Sunny | 2 to 7 mph W | 2% |
| Monday Night | 37°F | Mostly Clear | 3 mph SW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Donnellson (39.031, -89.476). Updated through the day.
Growing snapshot for Donnellson
Last spring frost
Apr 13
First fall frost
Oct 24
Growing season
192 days
Hardiness zone
6b
More local growing data for Donnellson: nearby ZIP 62077 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Hillsboro, Il (9 mi from Donnellson). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.