Smithville, MO Weather & Growing Conditions
Overnight
46°F
Patchy Drizzle
Patchy drizzle before 2am. Cloudy, with a low around 46. West northwest wind around 12 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 46°F | Patchy Drizzle | 12 mph WNW | 12% |
| Wednesday | 57°F | Mostly Cloudy | 9 to 14 mph W | 1% |
| Wednesday Night | 40°F | Mostly Clear | 7 mph W | 1% |
| Thursday | 56°F | Mostly Sunny | 5 to 10 mph WNW | 0% |
| Thursday Night | 42°F | Mostly Cloudy | 7 mph NNW | 5% |
| Friday | 54°F | Partly Sunny | 7 mph N | 2% |
| Friday Night | 35°F | Mostly Cloudy | 0 to 3 mph NNE | 0% |
| Saturday | 55°F | Mostly Sunny | 0 to 3 mph SSW | 0% |
| Saturday Night | 37°F | Mostly Clear | 2 mph SW | 0% |
| Sunday | 61°F | Sunny | 1 to 5 mph W | 0% |
| Sunday Night | 39°F | Clear | 2 mph SW | 0% |
| Monday | 67°F | Sunny | 2 to 8 mph SSW | 0% |
| Monday Night | 43°F | Mostly Clear | 5 mph WSW | 0% |
| Tuesday | 67°F | Sunny | 5 mph NNW | 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.