Mount Clare, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mount Clare, a village in Macoupin County, Illinois.
Today
86°F
Sunny
Sunny, with a high near 86. South wind around 3 mph.
7-day forecast for Mount Clare
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 3 mph S | 0% |
| Tonight | 65°F | Mostly Clear | 3 mph SE | 0% |
| Wednesday | 88°F | Sunny | 2 to 6 mph S | 13% |
| Wednesday Night | 68°F | Chance Showers And Thunderstorms | 6 mph S | 75% |
| Thursday | 84°F | Showers And Thunderstorms | 6 mph S | 75% |
| Thursday Night | 66°F | Slight Chance Showers And Thunderstorms | 3 mph SE | 23% |
| Friday | 84°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 3 mph SW | 23% |
| Friday Night | 67°F | Chance Showers And Thunderstorms | 3 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 | 89°F | Sunny | 5 to 9 mph S | 6% |
| Sunday Night | 71°F | Mostly Clear | 8 mph S | 5% |
| Monday | 91°F | Mostly Sunny | 8 mph SW | 6% |
| Monday Night | 72°F | Slight Chance Showers And Thunderstorms | 7 mph S | 17% |
Forecast source: National Weather Service (api.weather.gov) for Mount Clare (39.097, -89.834). Updated through the day.
Growing snapshot for Mount Clare
Last spring frost
Apr 14
First fall frost
Oct 21
Growing season
188 days
Hardiness zone
6b
More local growing data for Mount Clare: nearby ZIP 62085 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Benld
Bunker Hill
Carlinville
Chesterfield
Dorchester
Eagarville
East Gillespie
Gillespie
Girard
Hettick
Lake Ka-Ho
Modesto
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 (14.7 mi from Mount Clare). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.