Harman US

Blandinsville, IL Weather & Growing Conditions

Overnight
51°F
Mostly Cloudy
Mostly cloudy. Low around 51, with temperatures rising to around 53 overnight. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 51°F Mostly Cloudy 10 to 15 mph SW 9%
Wednesday 54°F Slight Chance Rain Showers then Mostly Cloudy 15 mph W 15%
Wednesday Night 45°F Mostly Cloudy 10 to 15 mph SW 4%
Thursday 56°F Slight Chance Rain Showers 10 to 15 mph W 24%
Thursday Night 43°F Chance Rain Showers 5 to 10 mph NW 26%
Friday 51°F Partly Sunny 5 to 10 mph N 11%
Friday Night 32°F Partly Cloudy 0 to 5 mph N 0%
Saturday 52°F Sunny 0 to 5 mph NW 0%
Saturday Night 34°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 63°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 Blandinsville, IL

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

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

Climate data from the nearest NOAA station, La Harpe, Il (5.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.