Westwood, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Westwood, a village in St. Louis County, Missouri.
This Afternoon
73°F
Rain
Rain and a slight chance of thunderstorms. Cloudy. High near 73, with temperatures falling to around 68 in the afternoon. South wind around 16 mph, with gusts as high as 26 mph. Chance of precipitation is 100%.
7-day forecast for Westwood
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Rain | 16 mph S | 96% |
| Tonight | 55°F | Rain | 8 to 15 mph S | 89% |
| Wednesday | 63°F | Mostly Cloudy | 7 to 13 mph W | 5% |
| Wednesday Night | 46°F | Partly Cloudy | 6 mph SW | 0% |
| Thursday | 66°F | Sunny | 6 to 9 mph W | 2% |
| Thursday Night | 46°F | Mostly Cloudy | 6 mph NW | 10% |
| Friday | 58°F | Partly Sunny | 6 to 9 mph NW | 5% |
| Friday Night | 41°F | Mostly Cloudy | 2 to 6 mph N | 1% |
| Saturday | 57°F | Partly Sunny | 3 mph NW | 0% |
| Saturday Night | 39°F | Partly Cloudy | 2 mph W | 1% |
| Sunday | 62°F | Sunny | 2 to 6 mph W | 9% |
| Sunday Night | 40°F | Mostly Clear | 5 mph W | 5% |
| Monday | 67°F | Sunny | 6 mph SW | 2% |
| Monday Night | 44°F | Mostly Clear | 5 mph SW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Westwood (38.643, -90.433). Updated through the day.
Growing snapshot for Westwood
Last spring frost
Apr 4
First fall frost
Oct 29
Growing season
206 days
Hardiness zone
7a
More local growing data for Westwood: nearby ZIP 63141 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
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Brentwood
Bridgeton
Calverton Park
Castle Point
Champ
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Chesterfield
Clarkson Valley
Clayton
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Cool Valley
Country Club Hills
Country Life Acres
Crestwood
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Crystal Lake Park
Dellwood
Des Peres
Edmundson
Climate data from the nearest NOAA station, St Charles 7 Ssw, Mo (4.1 mi from Westwood). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.