St. Louis, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Louis, a city in St. Louis City County, Missouri.
This Afternoon
73°F
Rain
Rain and a slight chance of thunderstorms. Cloudy. High near 73, with temperatures falling to around 66 in the afternoon. South wind around 12 mph, with gusts as high as 26 mph. Chance of precipitation is 90%.
7-day forecast for St. Louis
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Rain | 12 mph S | 88% |
| Tonight | 55°F | Rain | 8 to 14 mph S | 94% |
| Wednesday | 63°F | Mostly Cloudy | 6 to 12 mph W | 8% |
| Wednesday Night | 47°F | Partly Cloudy | 6 mph SW | 0% |
| Thursday | 66°F | Sunny | 5 to 9 mph W | 1% |
| Thursday Night | 47°F | Mostly Cloudy | 6 mph NW | 9% |
| Friday | 58°F | Mostly Cloudy | 6 to 9 mph NW | 5% |
| Friday Night | 42°F | Mostly Cloudy | 2 to 6 mph N | 1% |
| Saturday | 56°F | Partly Sunny | 3 mph NW | 0% |
| Saturday Night | 40°F | Partly Cloudy | 2 mph NW | 1% |
| Sunday | 62°F | Sunny | 2 to 6 mph W | 9% |
| Sunday Night | 40°F | Mostly Clear | 5 mph W | 5% |
| Monday | 66°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 St. Louis (38.636, -90.245). Updated through the day.
Growing snapshot for St. Louis
Last spring frost
Apr 1
First fall frost
Nov 4
Growing season
218 days
Hardiness zone
7a
More local growing data for St. Louis: nearby ZIP 63108 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, St Louis Sci Ctr, Mo (1.3 mi from St. Louis). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.