Millstadt, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Millstadt, a village in St. Clair County, Illinois.
Today
87°F
Sunny
Sunny, with a high near 87. South wind around 6 mph.
7-day forecast for Millstadt
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Sunny | 6 mph S | 0% |
| Tonight | 67°F | Mostly Clear | 2 to 6 mph SE | 0% |
| Wednesday | 89°F | Sunny | 2 to 6 mph S | 6% |
| Wednesday Night | 71°F | Slight Chance Showers And Thunderstorms | 7 mph S | 58% |
| Thursday | 86°F | Showers And Thunderstorms Likely | 6 mph S | 68% |
| Thursday Night | 70°F | Chance Showers And Thunderstorms | 3 mph S | 44% |
| Friday | 86°F | Chance Showers And Thunderstorms | 3 mph SW | 44% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 2 mph SW | 34% |
| Saturday | 88°F | Chance Showers And Thunderstorms | 5 mph S | 34% |
| Saturday Night | 71°F | Mostly Clear | 6 mph S | 8% |
| Sunday | 91°F | Sunny | 5 to 8 mph S | 7% |
| Sunday Night | 73°F | Mostly Clear | 8 mph S | 5% |
| Monday | 92°F | Sunny | 8 mph SW | 5% |
| Monday Night | 74°F | Slight Chance Showers And Thunderstorms | 8 mph SW | 15% |
Forecast source: National Weather Service (api.weather.gov) for Millstadt (38.457, -90.086). Updated through the day.
Growing snapshot for Millstadt
Last spring frost
Apr 8
First fall frost
Oct 26
Growing season
200 days
Hardiness zone
7a
More local growing data for Millstadt: nearby ZIP 62260 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Cahokia St Louis Ap, Il (8.3 mi from Millstadt). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.