Chesterfield, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Chesterfield, a village in Macoupin County, Illinois.
Today
86°F
Sunny
Sunny, with a high near 86. South wind around 5 mph.
7-day forecast for Chesterfield
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 5 mph S | 0% |
| Tonight | 65°F | Mostly Clear | 5 mph SE | 0% |
| Wednesday | 87°F | Mostly Sunny then Isolated Showers And Thunderstorms | 6 mph S | 15% |
| Wednesday Night | 67°F | Chance Showers And Thunderstorms | 6 mph S | 81% |
| Thursday | 84°F | Showers And Thunderstorms | 5 mph SW | 81% |
| Thursday Night | 65°F | Slight Chance Showers And Thunderstorms | 3 mph SE | 22% |
| Friday | 85°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 3 mph SW | 15% |
| Friday Night | 66°F | Chance Showers And Thunderstorms | 2 mph S | 26% |
| Saturday | 87°F | Chance Showers And Thunderstorms then Mostly Sunny | 5 mph S | 26% |
| Saturday Night | 70°F | Mostly Clear | 6 mph S | 7% |
| Sunday | 90°F | Sunny | 6 to 9 mph S | 5% |
| Sunday Night | 72°F | Mostly Clear | 8 mph S | 4% |
| Monday | 91°F | Mostly Sunny | 8 mph SW | 6% |
| Monday Night | 72°F | Slight Chance Showers And Thunderstorms | 7 mph S | 20% |
Forecast source: National Weather Service (api.weather.gov) for Chesterfield (39.257, -90.067). Updated through the day.
Growing snapshot for Chesterfield
Last spring frost
Apr 14
First fall frost
Oct 21
Growing season
188 days
Hardiness zone
6b
More local growing data for Chesterfield: nearby ZIP 62630 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Carlinville, Il (11.6 mi from Chesterfield). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.