Harman US

Schaumburg, IL Weather & Growing Conditions

Tonight
60°F
Rain
Rain. Cloudy. Low around 60, with temperatures rising to around 62 overnight. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Tonight 60°F Rain 15 mph S 86%
Wednesday 63°F Rain Likely then Rain Showers Likely 15 mph SSW 60%
Wednesday Night 48°F Slight Chance Rain Showers 15 mph SW 19%
Thursday 56°F Chance Rain Showers 10 to 15 mph WSW 31%
Thursday Night 43°F Chance Rain Showers 5 to 10 mph WNW 41%
Friday 52°F Chance Rain Showers 10 to 15 mph N 27%
Friday Night 37°F Mostly Cloudy 5 to 10 mph NNW 7%
Saturday 52°F Mostly Sunny 5 mph WNW 7%
Saturday Night 36°F Partly Cloudy 0 to 5 mph WSW 6%
Sunday 57°F Mostly Sunny then Slight Chance Rain 5 to 10 mph W 16%
Sunday Night 37°F Mostly Clear 5 mph WNW 8%
Monday 59°F Sunny 5 to 10 mph WSW 3%
Monday Night 41°F Mostly Clear 5 to 10 mph W 2%
Tuesday 61°F Mostly Sunny 5 to 10 mph WNW 1%

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

Growing snapshot for Schaumburg, IL

Last spring frost
Apr 30
First fall frost
Oct 13
Growing season
163 days
Hardiness zone
5b

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

Climate data from the nearest NOAA station, Streamwood, Il (4.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.