Harman US

Heyworth, IL Weather & Growing Conditions

Tonight
54°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy. Low around 54, with temperatures rising to around 59 overnight. South wind 16 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Tonight 54°F Showers And Thunderstorms 16 to 20 mph S 96%
Wednesday 61°F Slight Chance Light Rain then Mostly Cloudy 15 to 18 mph SW 21%
Wednesday Night 45°F Mostly Cloudy 14 mph SW 4%
Thursday 60°F Mostly Sunny 13 to 17 mph WSW 6%
Thursday Night 42°F Mostly Cloudy then Slight Chance Light Rain 6 to 10 mph NW 22%
Friday 55°F Slight Chance Light Rain then Partly Sunny 8 to 13 mph NNW 17%
Friday Night 35°F Mostly Cloudy 5 to 12 mph N 7%
Saturday 54°F Mostly Sunny 7 mph WNW 2%
Saturday Night 33°F Partly Cloudy 5 mph W 3%
Sunday 60°F Sunny 5 to 12 mph W 13%
Sunday Night 34°F Mostly Clear 5 to 9 mph WNW 7%
Monday 64°F Sunny 5 to 14 mph SW 3%
Monday Night 39°F Mostly Clear 6 to 10 mph WSW 2%
Tuesday 66°F Sunny 8 mph WNW 0%

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

Growing snapshot for Heyworth, IL

Last spring frost
Apr 21
First fall frost
Oct 20
Growing season
181 days
Hardiness zone
6a

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

Climate data from the nearest NOAA station, Bloomington 5W, Il (13.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.