Kappa, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Kappa, a village in Mclean County, Illinois.
Tonight
67°F
Mostly Cloudy then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 67. Southeast wind around 9 mph, with gusts as high as 18 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Kappa
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 67°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 9 mph SE | 16% |
| Saturday | 85°F | Chance Showers And Thunderstorms | 10 mph SSE | 31% |
| Saturday Night | 67°F | Showers And Thunderstorms Likely | 8 mph E | 59% |
| Sunday | 77°F | Rain Showers Likely | 5 to 15 mph NNE | 67% |
| Sunday Night | 57°F | Showers And Thunderstorms Likely | 12 to 15 mph NE | 68% |
| Monday | 67°F | Showers And Thunderstorms Likely | 16 mph ENE | 68% |
| Monday Night | 52°F | Chance Showers And Thunderstorms | 12 to 16 mph NE | 49% |
| Tuesday | 66°F | Chance Rain Showers | 15 mph NE | 27% |
| Tuesday Night | 50°F | Mostly Cloudy | 6 to 14 mph NNE | 7% |
| Wednesday | 69°F | Partly Sunny | 7 to 10 mph NNE | 5% |
| Wednesday Night | 51°F | Partly Cloudy | 3 to 9 mph NNE | 5% |
| Thursday | 70°F | Mostly Sunny | 5 to 8 mph NNE | 2% |
| Thursday Night | 53°F | Partly Cloudy | 3 to 7 mph NNE | 3% |
| Friday | 72°F | Mostly Sunny | 3 to 8 mph NNE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Kappa (40.675, -89.006). Updated through the day.
Growing snapshot for Kappa
Last spring frost
Apr 25
First fall frost
Oct 16
Growing season
172 days
Hardiness zone
6a
More local growing data for Kappa: nearby ZIP 61748 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Anchor
Arrowsmith
Bellflower
Bloomington
Chenoa
Colfax
Cooksville
Danvers
Downs
Ellsworth
Gridley
Heyworth
Hudson
Le Roy
Lexington
McLean
Normal
Saybrook
Shirley
Stanford
Towanda
Twin Grove
Climate data from the nearest NOAA station, Normal 4Ne, Il (5.6 mi from Kappa). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.