Sappington, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sappington, a community in St. Louis County, Missouri.
Today
88°F
Sunny
Sunny, with a high near 88. South wind 2 to 6 mph.
7-day forecast for Sappington
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Sunny | 2 to 6 mph S | 0% |
| Tonight | 69°F | Mostly Clear | 2 to 6 mph SE | 0% |
| Wednesday | 91°F | Sunny | 2 to 6 mph S | 9% |
| Wednesday Night | 72°F | Slight Chance Showers And Thunderstorms | 6 mph S | 63% |
| Thursday | 87°F | Showers And Thunderstorms Likely | 5 mph S | 68% |
| Thursday Night | 71°F | Chance Showers And Thunderstorms | 3 mph SE | 35% |
| Friday | 88°F | Chance Showers And Thunderstorms | 3 mph SW | 35% |
| Friday Night | 71°F | Chance Showers And Thunderstorms | 2 mph S | 29% |
| Saturday | 90°F | Chance Showers And Thunderstorms then Mostly Sunny | 3 mph SW | 29% |
| Saturday Night | 72°F | Mostly Clear | 6 mph S | 7% |
| Sunday | 92°F | Sunny | 7 mph S | 7% |
| Sunday Night | 74°F | Mostly Clear | 7 mph S | 5% |
| Monday | 94°F | Sunny | 7 mph SW | 5% |
| Monday Night | 75°F | Slight Chance Showers And Thunderstorms | 8 mph S | 15% |
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 Aug 4, 2026.