Pine Lawn, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pine Lawn, 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 68 in the afternoon. South wind around 20 mph, with gusts as high as 32 mph. Chance of precipitation is 100%.
7-day forecast for Pine Lawn
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Rain | 20 mph S | 98% |
| Tonight | 55°F | Rain | 9 to 17 mph S | 96% |
| Wednesday | 63°F | Mostly Cloudy | 7 to 13 mph W | 8% |
| Wednesday Night | 49°F | Partly Cloudy | 6 mph SW | 0% |
| Thursday | 69°F | Sunny | 6 to 9 mph SW | 3% |
| Thursday Night | 49°F | Slight Chance Light Rain then Mostly Cloudy | 6 mph W | 24% |
| Friday | 61°F | Partly Sunny | 6 to 9 mph NW | 5% |
| Friday Night | 46°F | Mostly Cloudy | 6 mph N | 2% |
| Saturday | 59°F | Partly Sunny | 5 mph NW | 0% |
| Saturday Night | 43°F | Partly Cloudy | 3 mph NW | 1% |
| Sunday | 60°F | Sunny | 3 to 8 mph W | 7% |
| Sunday Night | 41°F | Mostly Clear | 6 mph W | 6% |
| Monday | 63°F | Sunny | 3 to 7 mph W | 2% |
| Monday Night | 43°F | Mostly Clear | 3 mph SW | 3% |
Forecast source: National Weather Service (api.weather.gov) for Pine Lawn (38.695, -90.276). Updated through the day.
Growing snapshot for Pine Lawn
Last spring frost
Apr 1
First fall frost
Nov 4
Growing season
218 days
Hardiness zone
7a
More local growing data for Pine Lawn: nearby ZIP 63120 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, St Louis Sci Ctr, Mo (4.2 mi from Pine Lawn). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.