Maryland Heights, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Maryland Heights, a city in St. Louis County, Missouri.
Today
59°F
Patchy Drizzle then Mostly Cloudy
Patchy drizzle before noon. Mostly cloudy, with a high near 59. West wind 8 to 13 mph, with gusts as high as 21 mph.
7-day forecast for Maryland Heights
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 59°F | Patchy Drizzle then Mostly Cloudy | 8 to 13 mph W | 12% |
| Tonight | 46°F | Partly Cloudy | 7 mph W | 0% |
| Thursday | 65°F | Sunny | 7 to 12 mph W | 0% |
| Thursday Night | 47°F | Mostly Cloudy | 3 to 7 mph NW | 4% |
| Friday | 58°F | Partly Sunny | 7 to 10 mph N | 2% |
| Friday Night | 37°F | Partly Cloudy | 2 to 7 mph N | 0% |
| Saturday | 56°F | Mostly Sunny | 5 mph NW | 0% |
| Saturday Night | 36°F | Partly Cloudy | 2 mph NW | 0% |
| Sunday | 62°F | Sunny | 2 to 6 mph NW | 1% |
| Sunday Night | 37°F | Clear | 3 mph W | 0% |
| Monday | 67°F | Sunny | 1 to 5 mph SW | 0% |
| Monday Night | 43°F | Clear | 3 mph SW | 0% |
| Tuesday | 69°F | Sunny | 5 mph W | 1% |
| Tuesday Night | 44°F | Mostly Clear | 1 mph NW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Maryland Heights (38.717, -90.472). Updated through the day.
Growing snapshot for Maryland Heights
Last spring frost
Apr 4
First fall frost
Oct 29
Growing season
206 days
Hardiness zone
7a
More local growing data for Maryland Heights: nearby ZIP 63146 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
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Clarkson Valley
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Country Life Acres
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Crystal Lake Park
Dellwood
Des Peres
Edmundson
Climate data from the nearest NOAA station, St Charles 7 Ssw, Mo (2.6 mi from Maryland Heights). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.