Champaign, IL Weather & Growing Conditions
This Afternoon
82°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Mostly sunny. High near 82, with temperatures falling to around 72 in the afternoon. East northeast wind around 9 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 82°F | Slight Chance Showers And Thunderstorms | 9 mph ENE | 15% |
| Tonight | 68°F | Partly Cloudy | 9 mph ESE | 8% |
| Saturday | 88°F | Chance Showers And Thunderstorms | 9 mph S | 29% |
| Saturday Night | 69°F | Slight Chance Showers And Thunderstorms | 7 mph S | 29% |
| Sunday | 83°F | Showers And Thunderstorms Likely | 5 to 12 mph NNE | 54% |
| Sunday Night | 60°F | Chance Showers And Thunderstorms | 12 to 15 mph NE | 62% |
| Monday | 70°F | Showers And Thunderstorms Likely | 15 mph NE | 70% |
| Monday Night | 55°F | Chance Showers And Thunderstorms | 12 to 17 mph NE | 53% |
| Tuesday | 68°F | Chance Rain Showers | 14 mph NE | 32% |
| Tuesday Night | 53°F | Mostly Cloudy | 8 to 14 mph NNE | 10% |
| 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 | 6 to 9 mph N | 4% |
| Thursday Night | 55°F | Partly Cloudy | 5 to 8 mph NNE | 4% |
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 Sep 19, 2026.