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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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.