Dellwood, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dellwood, a city in St. Louis County, Missouri.
Overnight
77°F
Clear
Clear, with a low around 77. South wind around 5 mph.
7-day forecast for Dellwood
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 77°F | Clear | 5 mph S | 3% |
| Saturday | 99°F | Partly Sunny | 5 to 8 mph SW | 5% |
| Saturday Night | 75°F | Partly Cloudy | 6 mph SW | 4% |
| Sunday | 93°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 3 to 7 mph NW | 35% |
| Sunday Night | 69°F | Showers And Thunderstorms Likely | 9 mph NE | 65% |
| Monday | 79°F | Showers And Thunderstorms Likely | 7 to 12 mph NE | 65% |
| Monday Night | 61°F | Chance Showers And Thunderstorms | 7 to 12 mph NE | 45% |
| Tuesday | 72°F | Slight Chance Rain Showers then Partly Sunny | 12 mph NE | 19% |
| Tuesday Night | 56°F | Mostly Cloudy | 6 to 12 mph N | 4% |
| Wednesday | 75°F | Mostly Sunny | 10 mph N | 1% |
| Wednesday Night | 57°F | Partly Cloudy | 3 to 9 mph N | 0% |
| Thursday | 77°F | Mostly Sunny | 5 to 8 mph N | 1% |
| Thursday Night | 60°F | Mostly Cloudy | 3 to 7 mph NE | 3% |
| Friday | 78°F | Partly Sunny | 7 mph NE | 7% |
Forecast source: National Weather Service (api.weather.gov) for Dellwood (38.756, -90.277). Updated through the day.
Growing snapshot for Dellwood
Last spring frost
Apr 2
First fall frost
Nov 4
Growing season
215 days
Hardiness zone
7a
More local growing data for Dellwood: nearby ZIP 63136 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Affton
Ballwin
Bel-Nor
Bel-Ridge
Bella Villa
Bellefontaine Neighbors
Bellerive Acres
Berkeley
Beverly Hills
Black Jack
Breckenridge Hills
Brentwood
Bridgeton
Calverton Park
Castle Point
Champ
Charlack
Chesterfield
Clarkson Valley
Clayton
Concord
Cool Valley
Country Club Hills
Country Life Acres
Crestwood
Creve Coeur
Crystal Lake Park
Des Peres
Edmundson
Ellisville
Climate data from the nearest NOAA station, St Louis Lambert Intl Ap, Mo (6.2 mi from Dellwood). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.