Harman US

Riverdale, IL Weather & Growing Conditions

Overnight
63°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Cloudy. Low around 63, with temperatures rising to around 65 overnight. East southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Overnight 63°F Chance Showers And Thunderstorms 10 mph ESE 54%
Saturday 77°F Showers And Thunderstorms then Showers And Thunderstorms Likely 5 to 10 mph SE 98%
Saturday Night 65°F Showers And Thunderstorms 5 to 10 mph SSE 95%
Sunday 70°F Showers And Thunderstorms Likely 10 to 15 mph NNE 65%
Sunday Night 58°F Chance Rain Showers 15 mph NE 36%
Monday 65°F Chance Rain Showers 15 mph ENE 31%
Monday Night 54°F Slight Chance Rain Showers then Mostly Cloudy 10 to 15 mph ENE 18%
Tuesday 64°F Slight Chance Rain Showers 10 to 15 mph NE 17%
Tuesday Night 54°F Mostly Cloudy 10 to 15 mph NE 13%
Wednesday 65°F Partly Sunny 10 mph NE 13%
Wednesday Night 55°F Mostly Cloudy 5 to 10 mph NE 6%
Thursday 67°F Partly Sunny 5 to 10 mph NNE 3%
Thursday Night 56°F Mostly Cloudy 5 to 10 mph NE 3%
Friday 69°F Mostly Sunny 5 to 10 mph NE 3%

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

Growing snapshot for Riverdale, IL

Last spring frost
Apr 10
First fall frost
Nov 1
Growing season
203 days
Hardiness zone
6a

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

Climate data from the nearest NOAA station, Chicago Midway Ap 3Sw, Il (9.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.