Donovan, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Donovan, a village in Iroquois County, Illinois.
Tonight
60°F
Rain
Rain. Cloudy, with a low around 60. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Donovan
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 60°F | Rain | 15 mph S | 77% |
| Wednesday | 65°F | Chance Rain then Mostly Cloudy | 10 to 15 mph SSW | 46% |
| Wednesday Night | 47°F | Mostly Cloudy | 10 mph SW | 7% |
| Thursday | 61°F | Partly Sunny | 5 to 15 mph WSW | 5% |
| Thursday Night | 43°F | Mostly Cloudy then Slight Chance Rain Showers | 0 to 5 mph WNW | 22% |
| Friday | 55°F | Slight Chance Rain Showers then Partly Sunny | 5 mph NNW | 24% |
| Friday Night | 35°F | Partly Cloudy | 0 to 5 mph NNW | 9% |
| Saturday | 54°F | Mostly Sunny | 0 to 5 mph WNW | 7% |
| Saturday Night | 32°F | Partly Cloudy | 0 mph | 3% |
| Sunday | 59°F | Mostly Sunny | 0 to 5 mph W | 10% |
| Sunday Night | 33°F | Mostly Clear | 0 to 5 mph WNW | 10% |
| Monday | 63°F | Sunny | 0 to 5 mph WSW | 5% |
| Monday Night | 38°F | Mostly Clear | 5 mph WSW | 2% |
| Tuesday | 65°F | Sunny | 5 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Donovan (40.885, -87.614). Updated through the day.
Growing snapshot for Donovan
Last spring frost
Apr 24
First fall frost
Oct 16
Growing season
174 days
Hardiness zone
5b
More local growing data for Donovan: nearby ZIP 60931 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Ashkum
Beaverville
Buckley
Cissna Park
Clifton
Crescent City
Danforth
Gilman
Iroquois
Loda
Martinton
Milford
Onarga
Papineau
Sheldon
Thawville
Watseka
Wellington
Woodland
Climate data from the nearest NOAA station, Watseka 2 Nw, Il (10.9 mi from Donovan). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.