Oak Grove, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Oak Grove, a village in Rock Island County, Illinois.
Today
86°F
Mostly Sunny
Mostly sunny, with a high near 86. Southwest wind 5 to 10 mph.
7-day forecast for Oak Grove
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Mostly Sunny | 5 to 10 mph SW | 6% |
| Tonight | 68°F | Showers And Thunderstorms Likely | 5 mph NE | 70% |
| Wednesday | 79°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 5 mph NE | 80% |
| Wednesday Night | 63°F | Showers And Thunderstorms | 5 mph N | 77% |
| Thursday | 80°F | Chance Rain Showers then Mostly Sunny | 5 mph NE | 50% |
| Thursday Night | 63°F | Mostly Clear | 0 to 5 mph E | 10% |
| Friday | 83°F | Mostly Sunny | 0 to 5 mph S | 6% |
| Friday Night | 66°F | Mostly Clear | 5 mph S | 10% |
| Saturday | 85°F | Sunny | 5 to 10 mph S | 9% |
| Saturday Night | 71°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 15% |
| Sunday | 87°F | Slight Chance Showers And Thunderstorms then Sunny | 10 to 15 mph SW | 15% |
| Sunday Night | 71°F | Slight Chance Showers And Thunderstorms | 10 mph S | 33% |
| Monday | 86°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 10 mph S | 33% |
| Monday Night | 71°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 10 mph S | 34% |
Forecast source: National Weather Service (api.weather.gov) for Oak Grove (41.412, -90.574). Updated through the day.
Growing snapshot for Oak Grove
Last spring frost
Apr 24
First fall frost
Oct 18
Growing season
176 days
Hardiness zone
5b
More local growing data for Oak Grove: nearby ZIP 61264 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Andalusia
Barstow
Buffalo Prairie
Carbon Cliff
Coal Valley
Cordova
Coyne Center
East Moline
Edgington
Hampton
Hillsdale
Illinois City
Joslin
Milan
Moline
Port Byron
Rapids City
Rock Island
Silvis
Taylor Ridge
Climate data from the nearest NOAA station, Moline Quad City Intl Ap, Il (5.7 mi from Oak Grove). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.