Northwoods, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Northwoods, a city in St. Louis County, Missouri.
Overnight
68°F
Clear
Clear, with a low around 68. Southeast wind around 2 mph.
7-day forecast for Northwoods
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 68°F | Clear | 2 mph SE | 0% |
| Tuesday | 89°F | Sunny | 5 mph SE | 1% |
| Tuesday Night | 70°F | Mostly Clear | 6 mph SE | 1% |
| Wednesday | 91°F | Mostly Sunny | 6 mph S | 11% |
| Wednesday Night | 72°F | Chance Showers And Thunderstorms | 8 mph S | 53% |
| Thursday | 87°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 6 mph S | 68% |
| Thursday Night | 71°F | Chance Showers And Thunderstorms | 5 mph E | 34% |
| Friday | 87°F | Chance Showers And Thunderstorms | 5 mph SW | 34% |
| Friday Night | 71°F | Slight Chance Showers And Thunderstorms | 5 mph S | 29% |
| Saturday | 89°F | Chance Showers And Thunderstorms then Mostly Sunny | 5 mph S | 29% |
| Saturday Night | 74°F | Mostly Clear | 7 mph S | 6% |
| Sunday | 92°F | Sunny | 6 to 9 mph SW | 6% |
| Sunday Night | 76°F | Mostly Clear | 8 mph S | 5% |
| Monday | 94°F | Sunny | 8 mph SW | 5% |
Forecast source: National Weather Service (api.weather.gov) for Northwoods (38.704, -90.282). Updated through the day.
Growing snapshot for Northwoods
Last spring frost
Apr 2
First fall frost
Nov 4
Growing season
215 days
Hardiness zone
7a
More local growing data for Northwoods: nearby ZIP 63121 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
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Clarkson Valley
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Cool Valley
Country Club Hills
Country Life Acres
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Crystal Lake Park
Dellwood
Des Peres
Edmundson
Climate data from the nearest NOAA station, St Louis Lambert Intl Ap, Mo (5 mi from Northwoods). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.