Georgetown, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Georgetown, a community in Mcdonough County, Illinois.
This Afternoon
81°F
Sunny
Sunny, with a high near 81. East wind around 5 mph.
7-day forecast for Georgetown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 81°F | Sunny | 5 mph E | 4% |
| Tonight | 69°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 to 10 mph SE | 18% |
| Saturday | 88°F | Slight Chance Rain Showers then Mostly Cloudy | 5 mph S | 15% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms | 0 to 5 mph NW | 63% |
| Sunday | 77°F | Rain Showers Likely | 0 to 10 mph N | 63% |
| Sunday Night | 59°F | Showers And Thunderstorms Likely | 5 to 15 mph NE | 66% |
| Monday | 66°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 66% |
| Monday Night | 54°F | Chance Rain Showers | 5 to 15 mph NE | 51% |
| Tuesday | 64°F | Chance Rain Showers | 10 mph NE | 33% |
| Tuesday Night | 49°F | Mostly Cloudy | 5 to 10 mph NE | 5% |
| Wednesday | 68°F | Mostly Sunny | 5 mph NE | 2% |
| Wednesday Night | 52°F | Partly Cloudy | 0 to 5 mph NE | 1% |
| Thursday | 69°F | Mostly Sunny | 0 to 5 mph NE | 4% |
| Thursday Night | 54°F | Partly Cloudy | 0 to 5 mph NE | 4% |
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 Sep 18, 2026.