Granville, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Granville, a village in Putnam County, Illinois.
This Afternoon
71°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy, with a high near 71. South wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 90%.
7-day forecast for Granville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Showers And Thunderstorms | 15 to 20 mph S | 90% |
| Tonight | 55°F | Showers And Thunderstorms | 15 mph S | 91% |
| Wednesday | 58°F | Chance Rain Showers then Mostly Cloudy | 15 mph SW | 30% |
| Wednesday Night | 46°F | Mostly Cloudy | 10 to 15 mph SW | 9% |
| Thursday | 56°F | Mostly Cloudy then Chance Rain Showers | 10 to 15 mph SW | 26% |
| Thursday Night | 44°F | Chance Rain Showers | 5 to 10 mph NW | 34% |
| Friday | 52°F | Slight Chance Rain Showers | 10 mph N | 18% |
| Friday Night | 36°F | Partly Cloudy | 0 to 5 mph NW | 2% |
| Saturday | 52°F | Mostly Sunny | 0 to 5 mph W | 3% |
| Saturday Night | 36°F | Partly Cloudy | 0 to 5 mph W | 3% |
| Sunday | 57°F | Sunny | 5 to 10 mph W | 14% |
| Sunday Night | 36°F | Mostly Clear | 5 mph W | 4% |
| Monday | 62°F | Sunny | 5 to 10 mph SW | 2% |
| Monday Night | 41°F | Mostly Clear | 5 to 10 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Granville (41.266, -89.230). Updated through the day.
Growing snapshot for Granville
Last spring frost
Apr 18
First fall frost
Oct 22
Growing season
188 days
Hardiness zone
5b
More local growing data for Granville: nearby ZIP 61326 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Hennepin, Il (5.6 mi from Granville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.