Thompsonville, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Thompsonville, a village in Franklin County, Illinois.
This Afternoon
79°F
Partly Sunny
Partly sunny. High near 79, with temperatures falling to around 76 in the afternoon. South southeast wind around 21 mph, with gusts as high as 29 mph.
7-day forecast for Thompsonville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 79°F | Partly Sunny | 21 mph SSE | 6% |
| Tonight | 57°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms | 8 to 18 mph S | 98% |
| Wednesday | 68°F | Partly Sunny | 6 to 12 mph SW | 11% |
| Wednesday Night | 45°F | Partly Cloudy | 3 mph WSW | 0% |
| Thursday | 69°F | Sunny | 2 to 9 mph SW | 0% |
| Thursday Night | 45°F | Partly Cloudy | 2 mph W | 5% |
| Friday | 61°F | Partly Sunny | 3 to 10 mph NNW | 4% |
| Friday Night | 40°F | Partly Cloudy | 2 to 7 mph NNW | 1% |
| Saturday | 58°F | Partly Sunny | 2 to 6 mph NNW | 0% |
| Saturday Night | 36°F | Partly Cloudy | 1 mph NW | 1% |
| Sunday | 63°F | Sunny | 0 to 8 mph W | 5% |
| Sunday Night | 35°F | Mostly Clear | 3 mph NW | 5% |
| Monday | 66°F | Sunny | 1 to 9 mph W | 2% |
| Monday Night | 39°F | Mostly Clear | 5 mph SW | 0% |
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
Nearby towns & communities
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Christopher
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Hanaford
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Royalton
Sesser
Valier
West City
West Frankfort
Zeigler
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 Nov 3, 2026.