River Grove, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for River Grove, a village in Cook County, Illinois.
Overnight
63°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 5am, then showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy. Low around 63, with temperatures rising to around 65 overnight. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast for River Grove
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 63°F | Showers And Thunderstorms Likely | 10 mph E | 79% |
| Saturday | 76°F | Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 to 10 mph SE | 100% |
| Saturday Night | 64°F | Showers And Thunderstorms | 5 to 10 mph ESE | 95% |
| Sunday | 69°F | Showers And Thunderstorms Likely | 10 to 15 mph NNE | 62% |
| Sunday Night | 57°F | Chance Rain Showers | 15 mph NE | 26% |
| Monday | 64°F | Chance Rain Showers | 15 mph ENE | 27% |
| Monday Night | 54°F | Slight Chance Rain Showers then Mostly Cloudy | 10 to 15 mph ENE | 21% |
| Tuesday | 63°F | Slight Chance Rain Showers | 15 mph NE | 16% |
| Tuesday Night | 54°F | Mostly Cloudy | 10 to 15 mph NE | 11% |
| Wednesday | 64°F | Slight Chance Rain Showers | 10 to 15 mph NE | 15% |
| Wednesday Night | 55°F | Mostly Cloudy | 5 to 10 mph NE | 6% |
| Thursday | 66°F | Partly Sunny | 5 to 10 mph NNE | 3% |
| Thursday Night | 55°F | Mostly Cloudy | 5 to 10 mph NNE | 3% |
| Friday | 69°F | Partly Sunny | 5 to 10 mph NE | 4% |
Forecast source: National Weather Service (api.weather.gov) for River Grove (41.924, -87.838). Updated through the day.
Growing snapshot for River Grove
Last spring frost
Apr 16
First fall frost
Oct 28
Growing season
193 days
Hardiness zone
6a
More local growing data for River Grove: nearby ZIP 60171 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Chicago Ohare Intl Ap, Il (6.9 mi from River Grove). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.