Richton Park, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Richton Park, a village in Cook County, Illinois.
This Afternoon
72°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Cloudy, with a high near 72. South wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Richton Park
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Chance Showers And Thunderstorms | 5 mph S | 28% |
| Tonight | 66°F | Showers And Thunderstorms | 5 mph SSE | 91% |
| Sunday | 69°F | Showers And Thunderstorms | 5 to 15 mph NNE | 84% |
| Sunday Night | 56°F | Chance Rain Showers | 15 mph NE | 47% |
| Monday | 65°F | Chance Rain Showers | 15 mph ENE | 44% |
| Monday Night | 53°F | Chance Rain Showers | 10 to 15 mph ENE | 32% |
| Tuesday | 63°F | Chance Rain Showers | 10 to 15 mph NE | 34% |
| Tuesday Night | 53°F | Chance Rain Showers then Mostly Cloudy | 10 to 15 mph NE | 27% |
| Wednesday | 65°F | Mostly Cloudy | 10 mph NE | 14% |
| Wednesday Night | 53°F | Mostly Cloudy | 5 to 10 mph NE | 7% |
| Thursday | 68°F | Partly Sunny | 5 to 10 mph NE | 2% |
| Thursday Night | 55°F | Mostly Cloudy | 0 to 10 mph NE | 7% |
| Friday | 72°F | Partly Sunny | 0 to 10 mph NE | 6% |
| Friday Night | 55°F | Partly Cloudy | 0 to 10 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Richton Park (41.480, -87.743). Updated through the day.
Growing snapshot for Richton Park
Last spring frost
Apr 23
First fall frost
Oct 20
Growing season
179 days
Hardiness zone
6a
More local growing data for Richton Park: nearby ZIP 60471 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Park Forest, Il (2.7 mi from Richton Park). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.