Gillespie, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Gillespie, a city in Macoupin County, Illinois.
Today
95°F
Partly Sunny
Partly sunny, with a high near 95. Southwest wind 3 to 7 mph.
7-day forecast for Gillespie
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 95°F | Partly Sunny | 3 to 7 mph SW | 9% |
| Tonight | 70°F | Partly Cloudy | 3 mph SW | 4% |
| Sunday | 90°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 2 to 7 mph NW | 34% |
| Sunday Night | 62°F | Chance Showers And Thunderstorms | 7 to 10 mph NE | 65% |
| Monday | 75°F | Showers And Thunderstorms Likely | 8 to 13 mph NE | 71% |
| Monday Night | 55°F | Chance Showers And Thunderstorms | 7 to 13 mph NE | 53% |
| Tuesday | 69°F | Slight Chance Rain Showers | 12 mph NE | 20% |
| Tuesday Night | 51°F | Mostly Cloudy | 5 to 12 mph N | 14% |
| Wednesday | 72°F | Mostly Sunny | 6 to 10 mph N | 2% |
| Wednesday Night | 52°F | Partly Cloudy | 2 to 8 mph N | 0% |
| Thursday | 74°F | Mostly Sunny | 3 to 7 mph N | 2% |
| Thursday Night | 54°F | Partly Cloudy | 2 to 6 mph NE | 4% |
| Friday | 77°F | Mostly Sunny | 3 to 7 mph NE | 4% |
| Friday Night | 54°F | Partly Cloudy | 2 to 6 mph NE | 3% |
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 Sep 19, 2026.