Sappington, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sappington, a community in St. Louis County, Missouri.
This Afternoon
73°F
Rain
Rain and a slight chance of thunderstorms. Cloudy. High near 73, with temperatures falling to around 67 in the afternoon. South wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 100%.
7-day forecast for Sappington
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Rain | 15 mph S | 95% |
| Tonight | 54°F | Light Rain | 8 to 14 mph S | 91% |
| Wednesday | 63°F | Mostly Cloudy | 6 to 12 mph W | 4% |
| Wednesday Night | 46°F | Partly Cloudy | 5 mph SW | 0% |
| Thursday | 66°F | Sunny | 5 to 8 mph W | 1% |
| Thursday Night | 46°F | Mostly Cloudy | 5 mph NW | 11% |
| Friday | 57°F | Partly Sunny | 5 to 8 mph NW | 6% |
| Friday Night | 41°F | Mostly Cloudy | 5 mph N | 2% |
| Saturday | 56°F | Partly Sunny | 3 mph NW | 0% |
| Saturday Night | 39°F | Partly Cloudy | 2 mph W | 1% |
| Sunday | 62°F | Sunny | 5 mph W | 9% |
| Sunday Night | 39°F | Mostly Clear | 3 mph W | 5% |
| Monday | 66°F | Sunny | 5 mph W | 2% |
| Monday Night | 43°F | Mostly Clear | 3 mph SW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Sappington (38.526, -90.373). Updated through the day.
Growing snapshot for Sappington
Last spring frost
Apr 1
First fall frost
Nov 4
Growing season
218 days
Hardiness zone
7a
More local growing data for Sappington: nearby ZIP 63126 weather · frost dates · planting calendar · Missouri frost dates
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Climate data from the nearest NOAA station, St Louis Sci Ctr, Mo (8.1 mi from Sappington). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.