Georgetown, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Georgetown, a community in Mcdonough County, Illinois.
Today
89°F
Sunny
Sunny, with a high near 89. South wind around 5 mph.
7-day forecast for Georgetown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 89°F | Sunny | 5 mph S | 0% |
| Tonight | 68°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph SE | 19% |
| Wednesday | 83°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 56% |
| Wednesday Night | 65°F | Showers And Thunderstorms | 0 to 5 mph N | 88% |
| Thursday | 81°F | Showers And Thunderstorms | 0 mph | 79% |
| Thursday Night | 63°F | Partly Cloudy | 0 mph | 13% |
| Friday | 83°F | Mostly Sunny | 0 mph | 6% |
| Friday Night | 65°F | Slight Chance Showers And Thunderstorms | 0 mph | 21% |
| Saturday | 86°F | Slight Chance Showers And Thunderstorms then Sunny | 0 to 5 mph S | 17% |
| Saturday Night | 70°F | Mostly Clear | 0 to 5 mph S | 8% |
| Sunday | 88°F | Sunny | 5 to 10 mph SW | 7% |
| Sunday Night | 70°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 16% |
| Monday | 88°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 16% |
| Monday Night | 71°F | Slight Chance Showers And Thunderstorms | 5 mph S | 27% |
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 Aug 4, 2026.