Richmond Heights, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Richmond Heights, a city 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 17 mph, with gusts as high as 29 mph. Chance of precipitation is 100%.
7-day forecast for Richmond Heights
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Rain | 17 mph S | 95% |
| Tonight | 54°F | Rain | 7 to 15 mph S | 92% |
| Wednesday | 63°F | Mostly Cloudy | 7 to 13 mph W | 5% |
| Wednesday Night | 46°F | Partly Cloudy | 5 mph SW | 0% |
| Thursday | 66°F | Sunny | 5 to 9 mph W | 1% |
| Thursday Night | 46°F | Mostly Cloudy | 5 mph NW | 10% |
| Friday | 58°F | Mostly Cloudy | 5 to 9 mph NW | 6% |
| 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 NW | 1% |
| Sunday | 62°F | Sunny | 2 to 6 mph W | 9% |
| Sunday Night | 40°F | Mostly Clear | 3 mph W | 5% |
| Monday | 67°F | Sunny | 2 to 6 mph SW | 2% |
| Monday Night | 44°F | Mostly Clear | 3 mph SW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Richmond Heights (38.631, -90.333). Updated through the day.
Growing snapshot for Richmond Heights
Last spring frost
Apr 1
First fall frost
Nov 4
Growing season
218 days
Hardiness zone
7a
More local growing data for Richmond Heights: nearby ZIP 63117 weather · frost dates · planting calendar · Missouri frost dates
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Climate data from the nearest NOAA station, St Louis Sci Ctr, Mo (3.2 mi from Richmond Heights). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.