Gillespie, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Gillespie, a city in Macoupin County, Illinois.
Today
86°F
Sunny
Sunny, with a high near 86. South wind around 5 mph.
7-day forecast for Gillespie
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 5 mph S | 0% |
| Tonight | 65°F | Mostly Clear | 2 to 6 mph SE | 0% |
| Wednesday | 88°F | Sunny | 2 to 6 mph S | 14% |
| Wednesday Night | 68°F | Slight Chance Showers And Thunderstorms | 5 mph S | 75% |
| Thursday | 84°F | Showers And Thunderstorms | 6 mph S | 75% |
| Thursday Night | 66°F | Slight Chance Showers And Thunderstorms | 0 to 3 mph SE | 22% |
| Friday | 85°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 3 mph SW | 22% |
| Friday Night | 67°F | Chance Showers And Thunderstorms | 2 mph S | 30% |
| Saturday | 87°F | Chance Showers And Thunderstorms then Mostly Sunny | 1 to 5 mph S | 30% |
| Saturday Night | 70°F | Mostly Clear | 6 mph S | 9% |
| Sunday | 90°F | Sunny | 5 to 9 mph S | 6% |
| Sunday Night | 72°F | Mostly Clear | 8 mph S | 5% |
| Monday | 91°F | Mostly Sunny | 6 to 9 mph SW | 7% |
| Monday Night | 72°F | Slight Chance Showers And Thunderstorms | 8 mph S | 17% |
Forecast source: National Weather Service (api.weather.gov) for Gillespie (39.125, -89.817). Updated through the day.
Growing snapshot for Gillespie
Last spring frost
Apr 14
First fall frost
Oct 21
Growing season
188 days
Hardiness zone
6b
More local growing data for Gillespie: nearby ZIP 62033 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Benld
Bunker Hill
Carlinville
Chesterfield
Dorchester
Eagarville
East Gillespie
Girard
Hettick
Lake Ka-Ho
Modesto
Mount Clare
Mount Olive
Nilwood
Palmyra
Royal Lakes
Sawyerville
Scottville
Shipman
Standard City
Staunton
Virden
White City
Wilsonville
Climate data from the nearest NOAA station, Carlinville, Il (10.6 mi from Gillespie). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.