Donovan, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Donovan, a village in Iroquois County, Illinois.
Overnight
60°F
Patchy Fog
Patchy fog. Mostly clear, with a low around 60. South wind around 5 mph.
7-day forecast for Donovan
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 60°F | Patchy Fog | 5 mph S | 0% |
| Tuesday | 83°F | Patchy Fog then Mostly Sunny | 0 to 5 mph S | 0% |
| Tuesday Night | 62°F | Partly Cloudy | 0 mph | 0% |
| Wednesday | 83°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SSW | 19% |
| Wednesday Night | 65°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 0 mph | 82% |
| Thursday | 79°F | Showers And Thunderstorms | 0 to 5 mph SSW | 82% |
| Thursday Night | 62°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 0 mph | 55% |
| Friday | 81°F | Partly Sunny | 0 mph | 10% |
| Friday Night | 63°F | Slight Chance Showers And Thunderstorms | 0 mph | 15% |
| Saturday | 83°F | Mostly Sunny | 0 to 5 mph SSW | 12% |
| Saturday Night | 67°F | Partly Cloudy | 0 to 5 mph SSW | 10% |
| Sunday | 86°F | Mostly Sunny | 5 to 10 mph SW | 11% |
| Sunday Night | 69°F | Slight Chance Showers And Thunderstorms | 5 mph SSW | 24% |
| Monday | 86°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 24% |
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 Aug 4, 2026.