Champaign, IL Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Champaign, a city in Champaign County, Illinois.

Tonight

68°F

Partly Cloudy

Partly cloudy, with a low around 68. East southeast wind around 8 mph.

7-day forecast for Champaign

When	Temp	Forecast	Wind	Precip
Tonight	68°F	Partly Cloudy	8 mph ESE	6%
Saturday	88°F	Chance Showers And Thunderstorms	9 mph S	30%
Saturday Night	69°F	Slight Chance Showers And Thunderstorms	5 to 8 mph S	28%
Sunday	83°F	Showers And Thunderstorms Likely	5 to 12 mph NNE	54%
Sunday Night	61°F	Chance Showers And Thunderstorms	10 to 14 mph NE	63%
Monday	70°F	Showers And Thunderstorms Likely	15 mph NE	70%
Monday Night	55°F	Chance Showers And Thunderstorms	12 to 16 mph NE	53%
Tuesday	68°F	Chance Rain Showers	14 mph NE	32%
Tuesday Night	53°F	Mostly Cloudy	8 to 14 mph NNE	11%
Wednesday	70°F	Partly Sunny	10 mph NNE	3%
Wednesday Night	54°F	Partly Cloudy	5 to 10 mph NNE	3%
Thursday	72°F	Mostly Sunny	8 mph N	4%
Thursday Night	55°F	Partly Cloudy	7 mph NNE	4%
Friday	73°F	Mostly Sunny	5 to 8 mph NNE	4%

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

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

All Illinois locations ›

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 Sep 19, 2026.