Smithton, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Smithton, a city in Pettis County, Missouri.
Today
92°F
Sunny
Sunny, with a high near 92. Heat index values as high as 96. South wind 1 to 5 mph.
7-day forecast for Smithton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 92°F | Sunny | 1 to 5 mph S | 0% |
| Tonight | 72°F | Partly Cloudy | 3 mph SE | 8% |
| Wednesday | 91°F | Chance Showers And Thunderstorms | 5 mph S | 30% |
| Wednesday Night | 68°F | Chance Showers And Thunderstorms | 5 mph ENE | 77% |
| Thursday | 87°F | Showers And Thunderstorms | 2 mph WSW | 77% |
| Thursday Night | 68°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 2 mph SE | 15% |
| Friday | 89°F | Slight Chance Showers And Thunderstorms | 2 mph SSW | 18% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 2 mph S | 29% |
| Saturday | 92°F | Chance Showers And Thunderstorms then Sunny | 5 mph SSW | 29% |
| Saturday Night | 72°F | Mostly Clear | 6 mph S | 4% |
| Sunday | 93°F | Sunny | 9 mph SSW | 1% |
| Sunday Night | 73°F | Mostly Clear | 6 mph SSW | 3% |
| Monday | 94°F | Sunny | 7 to 10 mph SSW | 3% |
| Monday Night | 74°F | Mostly Clear | 7 mph SSW | 3% |
Forecast source: National Weather Service (api.weather.gov) for Smithton (38.681, -93.092). Updated through the day.
Growing snapshot for Smithton
Last spring frost
Apr 10
First fall frost
Oct 26
Growing season
197 days
Hardiness zone
6b
More local growing data for Smithton: nearby ZIP 65350 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Sedalia Mem Ap, Mo (5.5 mi from Smithton). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.