Champaign, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Champaign, a city in Champaign County, Illinois.
This Afternoon
74°F
Chance Light Rain
A chance of rain after 4pm. Mostly cloudy, with a high near 74. South wind 17 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Champaign
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Chance Light Rain | 17 to 21 mph S | 29% |
| Tonight | 57°F | Light Rain | 14 to 17 mph S | 87% |
| Wednesday | 63°F | Chance Light Rain then Mostly Cloudy | 12 to 15 mph SSW | 29% |
| Wednesday Night | 46°F | Mostly Cloudy | 9 mph SW | 1% |
| Thursday | 61°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 Mostly Cloudy | 6 to 9 mph NNW | 18% |
| Friday Night | 37°F | Mostly Cloudy | 5 to 8 mph NNW | 7% |
| Saturday | 54°F | Mostly Sunny | 5 mph NW | 2% |
| Saturday Night | 35°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% |
Forecast source: National Weather Service (api.weather.gov) for Champaign (40.114, -88.275). Updated through the day.
Growing snapshot for Champaign
Last spring frost
Apr 15
First fall frost
Oct 24
Growing season
190 days
Hardiness zone
6a
More local growing data for Champaign: nearby ZIP 61821 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Bondville
Broadlands
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
Thomasboro
Tolono
Urbana
Climate data from the nearest NOAA station, Champaign 3S, Il (2.6 mi from Champaign). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.