Champaign, IL Weather & Growing Conditions
Today
84°F
Mostly Sunny
Mostly sunny, with a high near 84. South wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Mostly Sunny | 5 mph S | 0% |
| Tonight | 65°F | Mostly Clear | 5 mph SSE | 0% |
| Wednesday | 85°F | Mostly Sunny | 3 to 7 mph SSW | 8% |
| Wednesday Night | 68°F | Chance Showers And Thunderstorms | 6 mph S | 79% |
| Thursday | 81°F | Showers And Thunderstorms | 6 mph SSW | 79% |
| Thursday Night | 66°F | Chance Showers And Thunderstorms | 5 mph S | 39% |
| Friday | 83°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 3 mph SSW | 17% |
| Friday Night | 67°F | Slight Chance Showers And Thunderstorms | 3 mph SSW | 23% |
| Saturday | 84°F | Slight Chance Rain Showers then Mostly Sunny | 6 mph SSW | 18% |
| Saturday Night | 70°F | Mostly Clear | 3 to 9 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). 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 (4.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.