Cornell, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cornell, a village in Livingston County, Illinois.
Today
85°F
Mostly Sunny
Mostly sunny, with a high near 85. South wind 0 to 5 mph, with gusts as high as 15 mph.
7-day forecast for Cornell
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Mostly Sunny | 0 to 5 mph S | 3% |
| Tonight | 67°F | Mostly Cloudy | 0 to 5 mph SSE | 3% |
| Wednesday | 83°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 49% |
| Wednesday Night | 66°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 0 to 5 mph NW | 90% |
| Thursday | 81°F | Showers And Thunderstorms | 0 to 5 mph S | 79% |
| Thursday Night | 64°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SSE | 35% |
| Friday | 84°F | Mostly Sunny | 0 mph | 8% |
| Friday Night | 65°F | Slight Chance Showers And Thunderstorms | 0 mph | 19% |
| Saturday | 86°F | Mostly Sunny | 0 to 5 mph SSW | 11% |
| Saturday Night | 70°F | Mostly Clear | 0 to 5 mph SSW | 11% |
| Sunday | 88°F | Sunny | 5 to 10 mph SSW | 11% |
| Sunday Night | 71°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 26% |
| Monday | 88°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 26% |
| Monday Night | 71°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 35% |
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 Aug 4, 2026.