Harman US

Springfield, IL Weather & Growing Conditions

Overnight
56°F
Slight Chance Light Rain
A slight chance of rain before 4am. Mostly cloudy, with a low around 56. South southwest wind around 12 mph, with gusts as high as 20 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Overnight 56°F Slight Chance Light Rain 12 mph SSW 21%
Wednesday 59°F Patchy Drizzle 14 mph WSW 11%
Wednesday Night 46°F Patchy Drizzle then Mostly Cloudy 10 mph WSW 10%
Thursday 61°F Mostly Cloudy 13 mph W 10%
Thursday Night 45°F Mostly Cloudy 5 to 8 mph NW 8%
Friday 54°F Partly Sunny 10 mph NNW 4%
Friday Night 35°F Partly Cloudy 1 to 7 mph NNW 0%
Saturday 54°F Mostly Sunny 1 to 5 mph NNW 0%
Saturday Night 34°F Partly Cloudy 2 mph WNW 1%
Sunday 59°F Sunny 2 to 7 mph WNW 1%
Sunday Night 36°F Clear 3 mph W 1%
Monday 64°F Sunny 1 to 7 mph SW 0%
Monday Night 41°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 15
First fall frost
Oct 22
Growing season
188 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 #2, Il (1.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.