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Thomasboro, IL Weather & Growing Conditions

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

Today
84°F
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
Showers and thunderstorms likely before noon, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 84. East southeast wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast for Thomasboro

WhenTempForecastWindPrecip
Today 84°F Showers And Thunderstorms Likely then Chance Showers And Thunderstorms 7 mph ESE 62%
Tonight 68°F Mostly Cloudy 6 mph S 13%
Sunday 80°F Chance Rain Showers then Chance Showers And Thunderstorms 6 to 13 mph NNE 45%
Sunday Night 58°F Chance Showers And Thunderstorms 13 mph NE 47%
Monday 68°F Showers And Thunderstorms Likely 12 to 16 mph ENE 61%
Monday Night 52°F Chance Rain Showers 12 to 16 mph NE 46%
Tuesday 66°F Chance Rain Showers 14 mph NE 38%
Tuesday Night 51°F Chance Showers And Thunderstorms then Mostly Cloudy 8 to 14 mph NNE 38%
Wednesday 68°F Partly Sunny 10 mph NNE 6%
Wednesday Night 52°F Mostly Cloudy 6 to 9 mph NNE 5%
Thursday 70°F Partly Sunny 9 mph NNE 3%
Thursday Night 54°F Partly Cloudy 5 to 8 mph NNE 3%
Friday 73°F Mostly Sunny 6 to 9 mph NNE 3%
Friday Night 53°F Partly Cloudy 5 to 8 mph NE 3%

Forecast source: National Weather Service (api.weather.gov) for Thomasboro (40.244, -88.188). Updated through the day.

Growing snapshot for Thomasboro

Last spring frost
Apr 21
First fall frost
Oct 18
Growing season
179 days
Hardiness zone
6a

More local growing data for Thomasboro: nearby ZIP 61878 weather · frost dates · planting calendar · Illinois frost dates

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Climate data from the nearest NOAA station, Rantoul, Il (4.9 mi from Thomasboro). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.