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Georgetown, IL Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Georgetown, a city in Vermilion County, Illinois.

This Afternoon
87°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Partly sunny, with a high near 87. South wind around 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast for Georgetown

WhenTempForecastWindPrecip
This Afternoon 87°F Slight Chance Showers And Thunderstorms 5 mph S 21%
Tonight 68°F Mostly Cloudy 5 mph S 13%
Sunday 84°F Partly Sunny then Chance Showers And Thunderstorms 3 to 10 mph N 50%
Sunday Night 59°F Chance Showers And Thunderstorms 9 to 13 mph NNE 46%
Monday 71°F Showers And Thunderstorms Likely 10 to 14 mph NE 61%
Monday Night 55°F Chance Rain Showers 13 mph NE 48%
Tuesday 68°F Chance Rain Showers 13 mph NE 43%
Tuesday Night 54°F Slight Chance Rain Showers then Mostly Cloudy 6 to 13 mph NNE 21%
Wednesday 69°F Partly Sunny 7 to 10 mph NNE 12%
Wednesday Night 54°F Mostly Cloudy 3 to 10 mph N 3%
Thursday 72°F Partly Sunny 5 to 8 mph NNE 2%
Thursday Night 56°F Mostly Cloudy 2 to 7 mph NNE 4%
Friday 75°F Partly Sunny 3 to 7 mph NNE 4%
Friday Night 54°F Partly Cloudy 2 to 6 mph NE 3%

Forecast source: National Weather Service (api.weather.gov) for Georgetown (39.977, -87.635). Updated through the day.

Growing snapshot for Georgetown

Last spring frost
Apr 23
First fall frost
Oct 14
Growing season
171 days
Hardiness zone
6a

More local growing data for Georgetown: nearby ZIP 61846 weather · frost dates · planting calendar · Illinois frost dates

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Climate data from the nearest NOAA station, Perrysville 4 Wnw, In (8.6 mi from Georgetown). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.