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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.

Today
87°F
Showers And Thunderstorms
Showers and thunderstorms before 2pm, then a slight chance of showers and thunderstorms between 2pm and 4pm. Mostly cloudy, with a high near 87. South southeast wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast for Georgetown

WhenTempForecastWindPrecip
Today 87°F Showers And Thunderstorms 7 mph SSE 79%
Tonight 69°F Mostly Cloudy then Slight Chance Showers And Thunderstorms 5 mph S 15%
Sunday 82°F Partly Sunny then Chance Showers And Thunderstorms 2 to 10 mph N 59%
Sunday Night 59°F Showers And Thunderstorms Likely then Chance Showers And Thunderstorms 13 mph NE 62%
Monday 69°F Showers And Thunderstorms Likely 14 mph NE 68%
Monday Night 54°F Chance Rain Showers 12 to 15 mph NE 51%
Tuesday 68°F Chance Showers And Thunderstorms 14 mph NE 32%
Tuesday Night 53°F Chance Showers And Thunderstorms then Mostly Cloudy 7 to 14 mph NNE 32%
Wednesday 70°F Partly Sunny 10 mph NNE 8%
Wednesday Night 54°F Mostly Cloudy 5 to 9 mph N 7%
Thursday 71°F Partly Sunny 6 to 9 mph N 2%
Thursday Night 55°F Partly Cloudy 3 to 8 mph NNE 2%
Friday 74°F Mostly Sunny 5 to 9 mph NNE 2%
Friday Night 53°F Partly Cloudy 3 to 8 mph NE 2%

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.