Kappa, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Kappa, a village in Mclean County, Illinois.
Tonight
54°F
Light Rain
Rain before 1am, then rain showers. Mostly cloudy. Low around 54, with temperatures rising to around 59 overnight. South wind 13 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Kappa
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Light Rain | 13 to 17 mph S | 95% |
| Wednesday | 61°F | Chance Rain Showers then Mostly Cloudy | 14 to 17 mph SW | 27% |
| Wednesday Night | 44°F | Mostly Cloudy | 9 to 13 mph SW | 5% |
| Thursday | 59°F | Partly Sunny | 10 to 15 mph WSW | 8% |
| Thursday Night | 41°F | Mostly Cloudy then Chance Light Rain | 5 to 8 mph NW | 30% |
| Friday | 55°F | Slight Chance Light Rain | 7 to 12 mph N | 19% |
| Friday Night | 34°F | Mostly Cloudy | 2 to 9 mph NNW | 6% |
| Saturday | 53°F | Mostly Sunny | 5 mph WNW | 3% |
| Saturday Night | 33°F | Partly Cloudy | 3 mph WSW | 2% |
| Sunday | 59°F | Sunny | 3 to 10 mph W | 13% |
| Sunday Night | 33°F | Mostly Clear | 3 to 7 mph W | 7% |
| Monday | 64°F | Sunny | 3 to 12 mph SW | 3% |
| Monday Night | 38°F | Mostly Clear | 5 to 9 mph WSW | 2% |
| Tuesday | 66°F | Sunny | 7 mph WNW | 1% |
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 Nov 4, 2026.