Cornell, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cornell, a village in Livingston County, Illinois.
This Afternoon
78°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 4pm, then a slight chance of showers and thunderstorms between 4pm and 5pm. Partly sunny, with a high near 78. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Cornell
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 78°F | Showers And Thunderstorms Likely | 10 mph E | 58% |
| Tonight | 66°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 to 10 mph ESE | 20% |
| Saturday | 85°F | Chance Showers And Thunderstorms | 5 to 10 mph SSE | 51% |
| Saturday Night | 68°F | Showers And Thunderstorms Likely | 5 mph W | 71% |
| Sunday | 74°F | Showers And Thunderstorms Likely | 5 to 15 mph NNE | 74% |
| Sunday Night | 58°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 71% |
| Monday | 67°F | Showers And Thunderstorms Likely | 10 to 15 mph ENE | 67% |
| Monday Night | 53°F | Chance Rain Showers | 10 to 15 mph NE | 40% |
| Tuesday | 66°F | Chance Rain Showers | 10 mph NE | 25% |
| Tuesday Night | 52°F | Mostly Cloudy | 5 to 10 mph NNE | 8% |
| Wednesday | 69°F | Partly Sunny | 5 to 10 mph NNE | 5% |
| Wednesday Night | 53°F | Partly Cloudy | 0 to 5 mph NNE | 5% |
| Thursday | 71°F | Mostly Sunny | 0 to 5 mph N | 2% |
| Thursday Night | 54°F | Partly Cloudy | 0 to 5 mph NNE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Cornell (40.992, -88.730). Updated through the day.
Growing snapshot for Cornell
Last spring frost
Apr 12
First fall frost
Oct 28
Growing season
199 days
Hardiness zone
5b
More local growing data for Cornell: nearby ZIP 61319 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Campus
Chatsworth
Cullom
Dwight
Emington
Fairbury
Flanagan
Forrest
Long Point
Odell
Pontiac
Saunemin
Strawn
Climate data from the nearest NOAA station, Streator 3 Se, Il (6.5 mi from Cornell). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.