Bethany, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bethany, a city in Harrison County, Missouri.
Tonight
71°F
Partly Cloudy
Partly cloudy, with a low around 71. South wind around 8 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Bethany
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 71°F | Partly Cloudy | 8 mph S | 12% |
| Saturday | 85°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 6 to 10 mph SW | 16% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 6 mph N | 69% |
| Sunday | 73°F | Chance Showers And Thunderstorms | 6 to 10 mph N | 48% |
| Sunday Night | 60°F | Chance Showers And Thunderstorms | 9 mph NE | 51% |
| Monday | 63°F | Chance Rain Showers | 10 mph NE | 51% |
| Monday Night | 54°F | Chance Rain Showers | 9 mph NE | 44% |
| Tuesday | 60°F | Mostly Cloudy | 9 mph NE | 8% |
| Tuesday Night | 49°F | Mostly Cloudy | 3 to 7 mph NE | 4% |
| Wednesday | 64°F | Mostly Sunny | 6 mph ENE | 1% |
| Wednesday Night | 52°F | Partly Cloudy | 3 mph E | 4% |
| Thursday | 66°F | Partly Sunny | 5 mph E | 14% |
| Thursday Night | 55°F | Mostly Cloudy then Slight Chance Rain Showers | 3 mph E | 16% |
| Friday | 67°F | Slight Chance Rain Showers | 2 to 6 mph ESE | 18% |
Forecast source: National Weather Service (api.weather.gov) for Bethany (40.268, -94.030). Updated through the day.
Growing snapshot for Bethany
Last spring frost
Apr 16
First fall frost
Oct 22
Growing season
186 days
Hardiness zone
6a
More local growing data for Bethany: nearby ZIP 64424 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Bethany, Mo (0.6 mi from Bethany). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.