Smithville, OK Weather & Growing Conditions
Tonight
67°F
Mostly Clear
Mostly clear, with a low around 67. South wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 67°F | Mostly Clear | 0 to 5 mph S | 0% |
| Sunday | 95°F | Mostly Sunny | 0 to 5 mph SW | 0% |
| Sunday Night | 68°F | Mostly Cloudy then Slight Chance Rain Showers | 0 to 5 mph S | 20% |
| Monday | 94°F | Chance Showers And Thunderstorms | 0 to 5 mph NW | 37% |
| Monday Night | 65°F | Chance Showers And Thunderstorms then Mostly Clear | 0 mph | 37% |
| Tuesday | 89°F | Mostly Sunny | 5 mph N | 12% |
| Tuesday Night | 61°F | Partly Cloudy | 0 to 5 mph NE | 12% |
| Wednesday | 88°F | Sunny | 5 mph NE | 4% |
| Wednesday Night | 60°F | Mostly Clear | 0 mph | 4% |
| Thursday | 89°F | Mostly Sunny | 0 to 5 mph E | 2% |
| Thursday Night | 60°F | Partly Cloudy | 0 mph | 2% |
| Friday | 89°F | Mostly Sunny | 0 to 5 mph E | 2% |
| Friday Night | 62°F | Mostly Cloudy | 0 mph | 2% |
| Saturday | 89°F | Partly Sunny | 0 to 5 mph E | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Smithville, OK
Last spring frost
Apr 9
First fall frost
Oct 29
Growing season
201 days
Hardiness zone
7b
Explore more for Smithville, OK: full frost dates · planting calendar · Oklahoma frost dates
Climate data from the nearest NOAA station, Smithville, Ok (5.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.