Kaskaskia, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Kaskaskia, a village in Randolph County, Illinois.
Today
87°F
Sunny
Sunny, with a high near 87. East wind 0 to 3 mph.
7-day forecast for Kaskaskia
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Sunny | 0 to 3 mph E | 0% |
| Tonight | 65°F | Mostly Clear | 3 mph SE | 0% |
| Wednesday | 91°F | Sunny | 1 to 6 mph S | 3% |
| Wednesday Night | 70°F | Partly Cloudy then Chance Showers And Thunderstorms | 6 mph S | 34% |
| Thursday | 89°F | Chance Showers And Thunderstorms | 5 mph S | 52% |
| Thursday Night | 70°F | Chance Showers And Thunderstorms | 5 mph SE | 59% |
| Friday | 89°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 3 mph SW | 59% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 2 mph SW | 39% |
| Saturday | 90°F | Chance Showers And Thunderstorms | 3 mph S | 39% |
| Saturday Night | 71°F | Partly Cloudy | 5 mph S | 13% |
| Sunday | 92°F | Sunny | 3 to 8 mph S | 7% |
| Sunday Night | 72°F | Mostly Clear | 5 to 8 mph S | 4% |
| Monday | 94°F | Sunny | 5 to 8 mph SW | 4% |
| Monday Night | 74°F | Mostly Clear | 8 mph S | 7% |
Forecast source: National Weather Service (api.weather.gov) for Kaskaskia (37.921, -89.916). Updated through the day.
Growing snapshot for Kaskaskia
Last spring frost
Apr 8
First fall frost
Oct 30
Growing season
202 days
Hardiness zone
7a
More local growing data for Kaskaskia: nearby ZIP 62241 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Kaskaskia Rvr Navigation Lock, Il (3.5 mi from Kaskaskia). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.