Harman US

Stronghurst, IL Weather & Growing Conditions

Overnight
52°F
Mostly Cloudy
Mostly cloudy. Low around 52, with temperatures rising to around 54 overnight. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 52°F Mostly Cloudy 10 to 15 mph SW 9%
Wednesday 56°F Slight Chance Rain Showers 15 mph SW 16%
Wednesday Night 46°F Mostly Cloudy 10 to 15 mph SW 6%
Thursday 56°F Chance Rain Showers 10 to 15 mph W 30%
Thursday Night 43°F Chance Rain Showers 10 mph NW 27%
Friday 51°F Partly Sunny 5 to 10 mph N 9%
Friday Night 33°F Partly Cloudy 0 to 5 mph N 0%
Saturday 52°F Sunny 0 to 5 mph NW 0%
Saturday Night 35°F Mostly Clear 0 to 5 mph W 1%
Sunday 58°F Sunny 5 mph W 2%
Sunday Night 36°F Clear 0 to 5 mph W 0%
Monday 64°F Sunny 0 to 10 mph SW 0%
Monday Night 41°F Clear 5 mph W 0%
Tuesday 65°F Sunny 5 mph NW 0%

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

Growing snapshot for Stronghurst, IL

Last spring frost
Apr 21
First fall frost
Oct 19
Growing season
180 days
Hardiness zone
6a

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

Climate data from the nearest NOAA station, La Harpe, Il (10.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.