Harman US

Donovan, IL Weather & Growing Conditions

Overnight
60°F
Rain Showers
Rain showers. Cloudy. Low around 60, with temperatures rising to around 63 overnight. South wind around 15 mph, with gusts as high as 35 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Overnight 60°F Rain Showers 15 mph S 82%
Wednesday 65°F Chance Rain Showers 10 to 15 mph SW 43%
Wednesday Night 46°F Mostly Cloudy 10 to 15 mph SW 6%
Thursday 59°F Partly Sunny then Slight Chance Rain Showers 10 to 15 mph WSW 19%
Thursday Night 42°F Chance Rain Showers 5 to 10 mph WNW 44%
Friday 52°F Slight Chance Rain Showers then Mostly Cloudy 10 mph NNW 15%
Friday Night 34°F Partly Cloudy 5 to 10 mph NW 1%
Saturday 53°F Sunny 0 to 5 mph NW 1%
Saturday Night 31°F Partly Cloudy 0 mph 0%
Sunday 56°F Sunny 0 to 5 mph W 4%
Sunday Night 32°F Mostly Clear 0 mph 1%
Monday 62°F Sunny 0 to 5 mph SW 1%
Monday Night 37°F Mostly Clear 0 to 5 mph WSW 1%
Tuesday 64°F Sunny 0 to 5 mph WNW 1%

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

Growing snapshot for Donovan, IL

Last spring frost
Apr 24
First fall frost
Oct 16
Growing season
174 days
Hardiness zone
5b

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

Climate data from the nearest NOAA station, Watseka 2 Nw, Il (10.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.