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Thompsonville, IL Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Thompsonville, a village in Franklin County, Illinois.

Overnight
72°F
Clear
Clear, with a low around 72. South wind around 2 mph.

7-day forecast for Thompsonville

WhenTempForecastWindPrecip
Overnight 72°F Clear 2 mph S 2%
Saturday 99°F Sunny 2 to 9 mph SW 2%
Saturday Night 73°F Mostly Clear 5 mph SSW 2%
Sunday 97°F Mostly Sunny 3 to 8 mph WSW 0%
Sunday Night 69°F Mostly Cloudy then Chance Showers And Thunderstorms 6 mph N 31%
Monday 86°F Showers And Thunderstorms Likely 6 to 12 mph NNE 62%
Monday Night 61°F Showers And Thunderstorms Likely then Chance Showers And Thunderstorms 6 to 13 mph NNE 62%
Tuesday 76°F Chance Showers And Thunderstorms 8 to 14 mph N 34%
Tuesday Night 57°F Slight Chance Showers And Thunderstorms then Partly Cloudy 5 to 14 mph N 20%
Wednesday 76°F Mostly Sunny 7 to 12 mph N 2%
Wednesday Night 56°F Partly Cloudy 2 to 10 mph N 0%
Thursday 77°F Mostly Sunny 3 to 10 mph N 2%
Thursday Night 58°F Partly Cloudy 2 to 9 mph NNE 4%
Friday 78°F Mostly Sunny 2 to 10 mph NNE 4%

Forecast source: National Weather Service (api.weather.gov) for Thompsonville (37.911, -88.765). Updated through the day.

Growing snapshot for Thompsonville

Last spring frost
Apr 4
First fall frost
Oct 28
Growing season
206 days
Hardiness zone
6b

More local growing data for Thompsonville: nearby ZIP 62890 weather · frost dates · planting calendar · Illinois frost dates

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Climate data from the nearest NOAA station, Benton 2 N, Il (13.3 mi from Thompsonville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.