Thompsonville, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Thompsonville, a village in Franklin County, Illinois.
Today
88°F
Sunny
Sunny, with a high near 88. East wind around 3 mph.
7-day forecast for Thompsonville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Sunny | 3 mph E | 0% |
| Tonight | 64°F | Mostly Clear | 0 to 3 mph ENE | 0% |
| Wednesday | 91°F | Sunny | 0 to 3 mph SSW | 0% |
| Wednesday Night | 69°F | Mostly Clear | 2 mph S | 4% |
| Thursday | 91°F | Chance Showers And Thunderstorms | 1 to 7 mph SSW | 25% |
| Thursday Night | 71°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 1 to 5 mph S | 57% |
| Friday | 90°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 2 to 6 mph SW | 57% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 3 mph SSW | 41% |
| Saturday | 90°F | Chance Showers And Thunderstorms | 1 to 6 mph SSW | 41% |
| Saturday Night | 71°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 mph SSW | 16% |
| Sunday | 93°F | Sunny | 2 to 10 mph SSW | 7% |
| Sunday Night | 72°F | Mostly Clear | 5 to 10 mph SSW | 5% |
| Monday | 94°F | Sunny | 5 to 10 mph SSW | 5% |
| Monday Night | 74°F | Partly Cloudy | 6 to 9 mph SSW | 7% |
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
Benton
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Christopher
Ewing
Hanaford
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Orient
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 Aug 4, 2026.