Bethany, MO Weather & Growing Conditions
Overnight
66°F
Partly Cloudy
Partly cloudy, with a low around 66. South southeast wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 66°F | Partly Cloudy | 5 mph SSE | 0% |
| Tuesday | 89°F | Mostly Sunny | 6 mph S | 13% |
| Tuesday Night | 67°F | Chance Showers And Thunderstorms | 5 to 8 mph NE | 50% |
| Wednesday | 78°F | Showers And Thunderstorms Likely | 8 mph NE | 69% |
| Wednesday Night | 63°F | Showers And Thunderstorms Likely | 5 to 9 mph NE | 63% |
| Thursday | 82°F | Showers And Thunderstorms Likely then Mostly Sunny | 5 mph ENE | 63% |
| Thursday Night | 64°F | Mostly Clear | 3 mph ESE | 7% |
| Friday | 86°F | Mostly Sunny | 2 to 7 mph S | 8% |
| Friday Night | 68°F | Mostly Clear | 6 mph S | 12% |
| Saturday | 90°F | Sunny | 3 to 10 mph S | 5% |
| Saturday Night | 73°F | Mostly Clear | 10 mph S | 8% |
| Sunday | 92°F | Sunny | 9 to 14 mph SSW | 8% |
| Sunday Night | 73°F | Partly Cloudy | 13 mph S | 9% |
| Monday | 93°F | Mostly Sunny | 10 to 15 mph SSW | 9% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Bethany, MO
Last spring frost
Apr 16
First fall frost
Oct 22
Growing season
186 days
Hardiness zone
6a
Explore more for Bethany, MO: full frost dates · planting calendar · Missouri frost dates
Climate data from the nearest NOAA station, Bethany, Mo (0.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.