Green Castle, MO Weather & Growing Conditions
Today
89°F
Sunny
Sunny, with a high near 89. South southwest wind 5 to 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 89°F | Sunny | 5 to 8 mph SSW | 12% |
| Tonight | 68°F | Chance Showers And Thunderstorms | 6 mph ENE | 43% |
| Wednesday | 81°F | Showers And Thunderstorms Likely | 8 mph E | 71% |
| Wednesday Night | 63°F | Showers And Thunderstorms Likely | 3 to 8 mph NNE | 71% |
| Thursday | 81°F | Showers And Thunderstorms Likely then Mostly Sunny | 5 mph NE | 71% |
| Thursday Night | 63°F | Mostly Clear | 1 to 5 mph ESE | 3% |
| Friday | 85°F | Mostly Sunny | 1 to 6 mph S | 8% |
| Friday Night | 67°F | Slight Chance Showers And Thunderstorms | 5 mph S | 17% |
| Saturday | 88°F | Sunny | 3 to 12 mph SSW | 12% |
| Saturday Night | 71°F | Mostly Clear | 9 to 13 mph S | 7% |
| Sunday | 90°F | Sunny | 12 to 17 mph SSW | 7% |
| Sunday Night | 72°F | Mostly Clear | 10 to 17 mph SSW | 12% |
| Monday | 90°F | Mostly Sunny | 12 to 17 mph SSW | 12% |
| Monday Night | 73°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 12 to 17 mph SSW | 20% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Green Castle, MO
Last spring frost
Apr 26
First fall frost
Oct 14
Growing season
169 days
Hardiness zone
6a
Explore more for Green Castle, MO: full frost dates · planting calendar · Missouri frost dates
Climate data from the nearest NOAA station, Green City 5N, Mo (9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.