Thomasboro, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Thomasboro, a village in Champaign County, Illinois.
Today
87°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms between 7am and 2pm. Mostly cloudy, with a high near 87. Southeast wind around 7 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Thomasboro
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Chance Showers And Thunderstorms | 7 mph SE | 54% |
| Tonight | 68°F | Chance Showers And Thunderstorms | 6 mph SSW | 30% |
| Sunday | 79°F | Chance Showers And Thunderstorms | 3 to 13 mph N | 70% |
| Sunday Night | 57°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 14 mph NE | 65% |
| Monday | 67°F | Showers And Thunderstorms Likely | 16 mph ENE | 68% |
| 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
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 Sep 19, 2026.