Harman US

Springfield, IL Weather & Growing Conditions

Overnight
55°F
Chance Light Rain
A chance of rain before 4am. Mostly cloudy, with a low around 55. South southwest wind around 12 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Overnight 55°F Chance Light Rain 12 mph SSW 28%
Wednesday 60°F Patchy Drizzle 12 to 15 mph WSW 11%
Wednesday Night 46°F Patchy Drizzle then Mostly Cloudy 12 mph WSW 10%
Thursday 61°F Mostly Cloudy 10 to 14 mph W 11%
Thursday Night 43°F Mostly Cloudy 7 mph NW 9%
Friday 54°F Partly Sunny 10 mph NNW 4%
Friday Night 32°F Partly Cloudy 1 to 7 mph NNW 0%
Saturday 53°F Mostly Sunny 1 to 5 mph NNW 0%
Saturday Night 32°F Partly Cloudy 2 mph WNW 1%
Sunday 58°F Sunny 2 to 7 mph WNW 1%
Sunday Night 34°F Clear 3 mph W 1%
Monday 63°F Sunny 1 to 7 mph SW 0%
Monday Night 39°F Clear 5 mph SW 0%
Tuesday 66°F Sunny 5 mph WNW 1%

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

Growing snapshot for Springfield, IL

Last spring frost
Apr 14
First fall frost
Oct 20
Growing season
187 days
Hardiness zone
6a

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

Climate data from the nearest NOAA station, Springfield Capital Ap, Il (1.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.