Bellefontaine Neighbors, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bellefontaine Neighbors, a city in St. Louis County, Missouri.
Today
99°F
Partly Sunny
Partly sunny, with a high near 99. Heat index values as high as 101. Southwest wind around 8 mph.
7-day forecast for Bellefontaine Neighbors
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 99°F | Partly Sunny | 8 mph SW | 3% |
| Tonight | 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 | 34% |
| Sunday Night | 68°F | Showers And Thunderstorms Likely | 6 to 9 mph NE | 64% |
| 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 | 47% |
| Tuesday | 72°F | Slight Chance Rain Showers then Partly Sunny | 12 mph NE | 19% |
| Tuesday Night | 56°F | Mostly Cloudy | 6 to 10 mph N | 5% |
| 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 | Partly Cloudy | 3 to 8 mph NE | 3% |
| Friday | 78°F | Partly Sunny | 3 to 8 mph NE | 6% |
| Friday Night | 60°F | Partly Cloudy | 3 to 8 mph NE | 6% |
Forecast source: National Weather Service (api.weather.gov) for Bellefontaine Neighbors (38.753, -90.228). Updated through the day.
Growing snapshot for Bellefontaine Neighbors
Last spring frost
Apr 2
First fall frost
Nov 4
Growing season
215 days
Hardiness zone
7a
More local growing data for Bellefontaine Neighbors: nearby ZIP 63137 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Affton
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Clarkson Valley
Clayton
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Country Club Hills
Country Life Acres
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Des Peres
Edmundson
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Climate data from the nearest NOAA station, St Louis Lambert Intl Ap, Mo (8.7 mi from Bellefontaine Neighbors). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.