Champaign, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Champaign, a city in Champaign County, Illinois.
Today
85°F
Mostly Sunny
Mostly sunny, with a high near 85. South wind around 6 mph.
7-day forecast for Champaign
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Mostly Sunny | 6 mph S | 0% |
| Tonight | 65°F | Mostly Clear | 5 mph SSE | 0% |
| Wednesday | 85°F | Mostly Sunny | 3 to 7 mph SSW | 7% |
| Wednesday Night | 68°F | Chance Showers And Thunderstorms | 6 mph S | 76% |
| Thursday | 82°F | Showers And Thunderstorms | 6 mph SSW | 76% |
| Thursday Night | 66°F | Chance Showers And Thunderstorms | 5 mph S | 41% |
| Friday | 83°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 3 mph SSW | 18% |
| Friday Night | 67°F | Slight Chance Showers And Thunderstorms | 3 mph SSW | 22% |
| Saturday | 85°F | Slight Chance Rain Showers then Mostly Sunny | 6 mph SSW | 18% |
| Saturday Night | 70°F | Mostly Clear | 3 to 8 mph SSW | 14% |
| Sunday | 87°F | Sunny | 8 to 12 mph SSW | 9% |
| Sunday Night | 71°F | Partly Cloudy | 10 mph SSW | 11% |
| Monday | 88°F | Slight Chance Showers And Thunderstorms | 10 mph SSW | 18% |
| Monday Night | 72°F | Slight Chance Showers And Thunderstorms | 10 mph SW | 28% |
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 Aug 4, 2026.