Champaign, IL Weather & Growing Conditions
Tonight
57°F
Light Rain
Rain before 3am, then rain showers likely. Cloudy, with a low around 57. South wind around 15 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 57°F | Light Rain | 15 mph S | 89% |
| Wednesday | 63°F | Chance Rain Showers then Mostly Cloudy | 10 to 15 mph SSW | 30% |
| Wednesday Night | 46°F | Mostly Cloudy | 9 mph SW | 1% |
| Thursday | 62°F | Mostly Sunny | 7 to 14 mph WSW | 4% |
| Thursday Night | 44°F | Mostly Cloudy | 6 mph WNW | 9% |
| Friday | 56°F | Slight Chance Light Rain then Partly Sunny | 6 to 9 mph NNW | 18% |
| Friday Night | 37°F | Mostly Cloudy | 3 to 8 mph NNW | 7% |
| Saturday | 54°F | Mostly Sunny | 5 mph NW | 2% |
| Saturday Night | 34°F | Partly Cloudy | 3 mph W | 2% |
| Sunday | 60°F | Sunny | 3 to 8 mph W | 11% |
| Sunday Night | 35°F | Mostly Clear | 6 mph WNW | 7% |
| Monday | 63°F | Sunny | 5 to 10 mph WSW | 3% |
| Monday Night | 40°F | Mostly Clear | 7 mph WSW | 2% |
| Tuesday | 66°F | Sunny | 7 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Champaign, IL
Last spring frost
Apr 15
First fall frost
Oct 24
Growing season
190 days
Hardiness zone
6a
Explore more for Champaign, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Champaign 3S, Il (2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.