Thomasboro, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Thomasboro, a village in Champaign County, Illinois.
This Afternoon
74°F
Chance Light Rain
A chance of rain after 4pm. Partly sunny, with a high near 74. South southeast wind 17 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Thomasboro
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Chance Light Rain | 17 to 21 mph SSE | 30% |
| Tonight | 56°F | Light Rain | 14 to 18 mph S | 83% |
| Wednesday | 63°F | Chance Light Rain then Mostly Cloudy | 12 to 16 mph SSW | 30% |
| Wednesday Night | 45°F | Mostly Cloudy | 10 mph SW | 3% |
| Thursday | 62°F | Mostly Sunny | 9 to 15 mph WSW | 5% |
| Thursday Night | 43°F | Mostly Cloudy | 7 mph WNW | 11% |
| Friday | 56°F | Slight Chance Light Rain then Mostly Cloudy | 6 to 10 mph NNW | 18% |
| Friday Night | 36°F | Mostly Cloudy | 3 to 9 mph NNW | 7% |
| Saturday | 55°F | Mostly Sunny | 5 mph NW | 2% |
| Saturday Night | 33°F | Partly Cloudy | 3 mph W | 2% |
| Sunday | 60°F | Sunny | 3 to 9 mph W | 11% |
| Sunday Night | 34°F | Mostly Clear | 6 mph WNW | 8% |
| Monday | 64°F | Sunny | 3 to 10 mph WSW | 4% |
| Monday Night | 39°F | Mostly Clear | 7 mph WSW | 2% |
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
Nearby towns & communities
Bondville
Broadlands
Champaign
Dewey
Fisher
Foosland
Gifford
Homer
Ivesdale
Lake of the Woods
Longview
Ludlow
Mahomet
Ogden
Penfield
Pesotum
Philo
Rantoul
Royal
Sadorus
Savoy
Seymour
Sidney
St. Joseph
Tolono
Urbana
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 Nov 3, 2026.