Stewartsville, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Stewartsville, a city in Clinton County, Missouri.
Tonight
45°F
Patchy Drizzle
Patchy drizzle before 2am. Cloudy, with a low around 45. West northwest wind 9 to 14 mph, with gusts as high as 21 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Stewartsville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 45°F | Patchy Drizzle | 9 to 14 mph WNW | 12% |
| Wednesday | 56°F | Mostly Cloudy | 10 to 15 mph W | 3% |
| Wednesday Night | 40°F | Partly Cloudy | 8 mph W | 1% |
| Thursday | 55°F | Mostly Sunny | 7 to 12 mph NW | 11% |
| Thursday Night | 41°F | Mostly Cloudy | 7 mph NNW | 5% |
| Friday | 54°F | Partly Sunny | 5 to 8 mph N | 1% |
| Friday Night | 33°F | Mostly Cloudy | 0 to 3 mph NE | 0% |
| Saturday | 55°F | Mostly Sunny | 3 mph S | 0% |
| Saturday Night | 36°F | Mostly Clear | 2 mph WSW | 0% |
| Sunday | 61°F | Sunny | 2 to 6 mph W | 0% |
| Sunday Night | 38°F | Clear | 5 mph SW | 0% |
| Monday | 66°F | Sunny | 5 to 9 mph SW | 0% |
| Monday Night | 42°F | Mostly Clear | 6 mph WSW | 0% |
| Tuesday | 67°F | Sunny | 6 mph N | 0% |
Forecast source: National Weather Service (api.weather.gov) for Stewartsville (39.756, -94.499). Updated through the day.
Growing snapshot for Stewartsville
Last spring frost
Apr 17
First fall frost
Oct 19
Growing season
184 days
Hardiness zone
6a
More local growing data for Stewartsville: nearby ZIP 64490 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Cosby 2W, Mo (12.8 mi from Stewartsville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.