Georgetown, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Georgetown, a community in Mcdonough County, Illinois.
Tonight
51°F
Rain Showers Likely
Rain showers likely before 1am. Mostly cloudy, with a low around 51. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
7-day forecast for Georgetown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 51°F | Rain Showers Likely | 10 to 15 mph S | 62% |
| Wednesday | 56°F | Slight Chance Rain Showers then Mostly Cloudy | 15 mph SW | 16% |
| Wednesday Night | 43°F | Mostly Cloudy | 10 mph SW | 5% |
| Thursday | 56°F | Partly Sunny | 10 to 15 mph W | 13% |
| Thursday Night | 41°F | Mostly Cloudy then Chance Rain Showers | 5 mph NW | 28% |
| Friday | 53°F | Mostly Cloudy | 5 to 10 mph N | 12% |
| Friday Night | 35°F | Mostly Cloudy | 0 to 5 mph N | 1% |
| Saturday | 53°F | Mostly Sunny | 0 to 5 mph NW | 1% |
| Saturday Night | 35°F | Mostly Clear | 0 mph | 1% |
| Sunday | 60°F | Sunny | 0 to 10 mph W | 9% |
| Sunday Night | 35°F | Mostly Clear | 0 to 5 mph W | 3% |
| Monday | 64°F | Sunny | 0 to 10 mph SW | 1% |
| Monday Night | 40°F | Mostly Clear | 5 mph W | 0% |
| Tuesday | 65°F | Sunny | 5 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Georgetown (40.460, -90.717). Updated through the day.
Growing snapshot for Georgetown
Last spring frost
Apr 17
First fall frost
Oct 22
Growing season
185 days
Hardiness zone
6a
More local growing data for Georgetown: nearby ZIP 61455 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Adair
Bardolph
Blandinsville
Bushnell
Colchester
Good Hope
Industry
Macomb
Prairie City
Sciota
Tennessee
Climate data from the nearest NOAA station, Prairie City 2S, Il (13.9 mi from Georgetown). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.