Champaign, IL Weather & Growing Conditions
Tonight
70°F
Mostly Cloudy
Mostly cloudy, with a low around 70. South southeast wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 70°F | Mostly Cloudy | 6 mph SSE | 6% |
| Sunday | 82°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 5 to 12 mph NNE | 39% |
| Sunday Night | 60°F | Chance Showers And Thunderstorms | 13 mph NE | 43% |
| Monday | 69°F | Showers And Thunderstorms Likely | 13 mph ENE | 64% |
| Monday Night | 55°F | Chance Rain Showers | 13 mph ENE | 45% |
| Tuesday | 67°F | Chance Rain Showers | 13 mph NE | 45% |
| Tuesday Night | 54°F | Mostly Cloudy | 8 to 14 mph NNE | 14% |
| Wednesday | 68°F | Partly Sunny | 10 mph NNE | 9% |
| Wednesday Night | 54°F | Mostly Cloudy | 5 to 10 mph NNE | 1% |
| Thursday | 71°F | Partly Sunny | 7 mph NNE | 1% |
| Thursday Night | 56°F | Mostly Cloudy | 7 mph NNE | 6% |
| Friday | 74°F | Partly Sunny | 5 to 8 mph NNE | 6% |
| Friday Night | 55°F | Partly Cloudy | 7 mph NE | 6% |
| Saturday | 76°F | Mostly Sunny | 6 mph NE | 2% |
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 (2.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.