Dellwood, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dellwood, a city in St. Louis County, Missouri.
Overnight
56°F
Chance Light Rain
A chance of rain before 3am, then a slight chance of drizzle. Mostly cloudy, with a low around 56. Southwest wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
7-day forecast for Dellwood
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 56°F | Chance Light Rain | 10 mph SW | 35% |
| Wednesday | 62°F | Slight Chance Drizzle then Mostly Cloudy | 8 to 14 mph W | 10% |
| Wednesday Night | 48°F | Partly Cloudy | 7 mph W | 0% |
| Thursday | 64°F | Sunny | 7 to 10 mph W | 0% |
| Thursday Night | 49°F | Mostly Cloudy | 7 mph NW | 3% |
| Friday | 57°F | Partly Sunny | 10 mph N | 1% |
| Friday Night | 39°F | Partly Cloudy | 2 to 7 mph N | 0% |
| Saturday | 56°F | Mostly Sunny | 5 mph N | 0% |
| Saturday Night | 38°F | Partly Cloudy | 2 mph NW | 0% |
| Sunday | 61°F | Sunny | 2 to 6 mph NW | 1% |
| Sunday Night | 40°F | Clear | 3 mph W | 0% |
| Monday | 66°F | Sunny | 1 to 5 mph SW | 0% |
| Monday Night | 45°F | Clear | 3 mph SW | 0% |
| Tuesday | 68°F | Sunny | 5 mph W | 1% |
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 Nov 4, 2026.