Kirkwood, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Kirkwood, a city in St. Louis County, Missouri.
Overnight
55°F
Slight Chance Light Rain
A slight chance of rain before 2am, then a slight chance of drizzle between 2am and 5am. Mostly cloudy, with a low around 55. Southwest wind around 8 mph. Chance of precipitation is 20%.
7-day forecast for Kirkwood
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Slight Chance Light Rain | 8 mph SW | 15% |
| Wednesday | 62°F | Mostly Cloudy | 7 to 12 mph W | 4% |
| Wednesday Night | 46°F | Partly Cloudy | 6 mph W | 0% |
| Thursday | 64°F | Sunny | 6 to 9 mph W | 0% |
| Thursday Night | 48°F | Mostly Cloudy | 6 mph NW | 4% |
| Friday | 57°F | Partly Sunny | 6 to 9 mph N | 2% |
| Friday Night | 38°F | Partly Cloudy | 2 to 6 mph N | 0% |
| Saturday | 55°F | Mostly Sunny | 3 mph N | 0% |
| Saturday Night | 37°F | Partly Cloudy | 2 mph NW | 0% |
| Sunday | 61°F | Sunny | 5 mph NW | 1% |
| Sunday Night | 38°F | Clear | 2 mph W | 0% |
| Monday | 66°F | Sunny | 3 mph SW | 0% |
| Monday Night | 43°F | Clear | 3 mph SW | 0% |
| Tuesday | 69°F | Sunny | 3 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Kirkwood (38.579, -90.421). Updated through the day.
Growing snapshot for Kirkwood
Last spring frost
Apr 1
First fall frost
Nov 4
Growing season
218 days
Hardiness zone
7a
More local growing data for Kirkwood: nearby ZIP 63122 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Affton
Ballwin
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Bel-Ridge
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Bellefontaine Neighbors
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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
Dellwood
Des Peres
Edmundson
Climate data from the nearest NOAA station, St Louis Sci Ctr, Mo (8.8 mi from Kirkwood). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.