Foristell, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Foristell, a city in St. Charles County, Missouri.
Tonight
72°F
Partly Cloudy
Partly cloudy, with a low around 72. Southwest wind 1 to 5 mph.
7-day forecast for Foristell
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 72°F | Partly Cloudy | 1 to 5 mph SW | 2% |
| Sunday | 90°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 5 mph W | 34% |
| Sunday Night | 65°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 3 to 7 mph NE | 77% |
| Monday | 76°F | Showers And Thunderstorms | 3 to 7 mph NE | 77% |
| Monday Night | 59°F | Chance Showers And Thunderstorms | 3 to 7 mph N | 51% |
| Tuesday | 70°F | Mostly Cloudy | 9 mph N | 13% |
| Tuesday Night | 53°F | Mostly Cloudy | 3 to 8 mph N | 3% |
| Wednesday | 72°F | Mostly Sunny | 6 mph N | 0% |
| Wednesday Night | 53°F | Partly Cloudy | 1 to 5 mph N | 0% |
| Thursday | 74°F | Mostly Sunny | 3 mph NE | 0% |
| Thursday Night | 57°F | Mostly Cloudy then Slight Chance Rain Showers | 2 mph NE | 15% |
| Friday | 78°F | Slight Chance Rain Showers | 1 to 5 mph NE | 21% |
| Friday Night | 58°F | Slight Chance Rain Showers then Mostly Cloudy | 3 mph NE | 21% |
| Saturday | 80°F | Mostly Sunny | 3 mph NE | 7% |
Forecast source: National Weather Service (api.weather.gov) for Foristell (38.814, -90.959). Updated through the day.
Growing snapshot for Foristell
Last spring frost
Apr 14
First fall frost
Oct 23
Growing season
191 days
Hardiness zone
6b
More local growing data for Foristell: nearby ZIP 63348 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Augusta
Cottleville
Dardenne Prairie
Defiance
Flint Hill
Josephville
Lake St. Louis
New Melle
O'Fallon
St. Paul
St. Peters
Weldon Spring
Weldon Spring Heights
Wentzville
West Alton
Climate data from the nearest NOAA station, Warrenton 1 N, Mo (11 mi from Foristell). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.