Stewartsville, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Stewartsville, a city in Clinton County, Missouri.
Today
89°F
Mostly Sunny
Mostly sunny, with a high near 89. South wind around 6 mph.
7-day forecast for Stewartsville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 89°F | Mostly Sunny | 6 mph S | 12% |
| Tonight | 68°F | Chance Showers And Thunderstorms | 5 to 8 mph ENE | 40% |
| Wednesday | 81°F | Showers And Thunderstorms Likely | 9 mph NE | 59% |
| Wednesday Night | 64°F | Showers And Thunderstorms Likely | 5 to 9 mph NNE | 67% |
| Thursday | 83°F | Showers And Thunderstorms Likely then Mostly Sunny | 6 mph ENE | 67% |
| Thursday Night | 66°F | Partly Cloudy | 5 mph SE | 11% |
| Friday | 87°F | Mostly Sunny | 3 to 7 mph S | 13% |
| Friday Night | 69°F | Slight Chance Showers And Thunderstorms | 6 mph S | 16% |
| Saturday | 91°F | Sunny | 5 to 12 mph S | 7% |
| Saturday Night | 73°F | Mostly Clear | 10 to 14 mph S | 5% |
| Sunday | 93°F | Sunny | 15 mph SSW | 2% |
| Sunday Night | 74°F | Mostly Clear | 12 to 15 mph S | 5% |
| Monday | 94°F | Mostly Sunny | 16 mph SSW | 5% |
| Monday Night | 75°F | Partly Cloudy | 15 mph SSW | 9% |
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 Aug 4, 2026.