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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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.