Riverdale, IL Weather & Growing Conditions
Tonight
62°F
Slight Chance Rain Showers then Chance Showers And Thunderstorms
A slight chance of rain showers before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 62. East southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 62°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 10 mph ESE | 42% |
| Saturday | 77°F | Showers And Thunderstorms Likely | 5 to 10 mph SE | 84% |
| Saturday Night | 66°F | Showers And Thunderstorms Likely then Showers And Thunderstorms | 5 to 10 mph SE | 83% |
| Sunday | 69°F | Showers And Thunderstorms | 10 to 15 mph NNE | 83% |
| Sunday Night | 57°F | Rain Showers Likely | 15 mph NE | 63% |
| Monday | 65°F | Rain Showers Likely | 15 mph ENE | 57% |
| Monday Night | 54°F | Chance Rain Showers | 10 to 15 mph ENE | 34% |
| Tuesday | 64°F | Slight Chance Rain Showers | 10 to 15 mph NE | 22% |
| Tuesday Night | 55°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 15 mph NE | 17% |
| Wednesday | 66°F | Partly Sunny | 5 to 10 mph NE | 12% |
| Wednesday Night | 55°F | Mostly Cloudy | 5 to 10 mph NNE | 4% |
| Thursday | 68°F | Partly Sunny | 5 to 10 mph NNE | 6% |
| Thursday Night | 57°F | Mostly Cloudy | 5 mph NNE | 4% |
| Friday | 70°F | Mostly Sunny | 5 to 10 mph NNE | 4% |
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.