Smithville, MO Weather & Growing Conditions
Tonight
46°F
Cloudy
Cloudy, with a low around 46. West northwest wind 10 to 14 mph, with gusts as high as 21 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 46°F | Cloudy | 10 to 14 mph WNW | 8% |
| Wednesday | 57°F | Mostly Cloudy | 9 to 14 mph W | 6% |
| Wednesday Night | 39°F | Mostly Clear | 3 to 7 mph W | 3% |
| Thursday | 57°F | Mostly Sunny then Slight Chance Rain Showers | 5 to 9 mph WNW | 16% |
| Thursday Night | 40°F | Mostly Cloudy | 7 mph NNW | 4% |
| Friday | 56°F | Partly Sunny | 6 mph N | 4% |
| Friday Night | 37°F | Mostly Cloudy | 0 to 3 mph N | 0% |
| Saturday | 59°F | Partly Sunny | 0 to 3 mph WNW | 2% |
| Saturday Night | 38°F | Mostly Clear | 2 mph WSW | 7% |
| Sunday | 63°F | Sunny | 5 mph W | 6% |
| Sunday Night | 40°F | Mostly Clear | 3 mph SW | 0% |
| Monday | 68°F | Sunny | 3 to 9 mph SW | 0% |
| Monday Night | 43°F | Mostly Clear | 2 to 6 mph W | 0% |
| Tuesday | 68°F | Mostly Sunny | 2 to 6 mph ENE | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Smithville, MO
Last spring frost
Apr 18
First fall frost
Oct 20
Growing season
183 days
Hardiness zone
6a
Explore more for Smithville, MO: full frost dates · planting calendar · Missouri frost dates
Climate data from the nearest NOAA station, Smithville Lake, Mo (0.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.