Harman US

Schaumburg, IL Weather & Growing Conditions

Today
76°F
Showers And Thunderstorms
Showers and thunderstorms before 1pm, then a chance of showers and thunderstorms between 1pm and 5pm, then showers and thunderstorms likely. Cloudy. High near 76, with temperatures falling to around 74 in the afternoon. South southeast wind 5 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

7-day forecast

WhenTempForecastWindPrecip
Today 76°F Showers And Thunderstorms 5 to 10 mph SSE 98%
Tonight 63°F Showers And Thunderstorms 5 to 10 mph ENE 95%
Sunday 69°F Showers And Thunderstorms Likely 10 to 15 mph NNE 60%
Sunday Night 56°F Chance Rain Showers 15 mph NE 25%
Monday 64°F Chance Rain Showers 15 mph ENE 28%
Monday Night 53°F Slight Chance Rain Showers then Mostly Cloudy 10 to 15 mph ENE 20%
Tuesday 62°F Slight Chance Rain Showers 10 to 15 mph NE 15%
Tuesday Night 52°F Mostly Cloudy 5 to 15 mph NE 8%
Wednesday 64°F Partly Sunny 10 mph NE 13%
Wednesday Night 53°F Mostly Cloudy 5 to 10 mph NNE 4%
Thursday 66°F Partly Sunny 5 to 10 mph NNE 4%
Thursday Night 53°F Mostly Cloudy 5 mph NNE 4%
Friday 70°F Mostly Sunny 5 to 10 mph NE 5%
Friday Night 54°F Partly Cloudy 0 to 5 mph NE 3%

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 Sep 19, 2026.