Green Castle, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Green Castle, a city in Adair County, Missouri.
This Afternoon
54°F
Cloudy
Cloudy, with a high near 54. West southwest wind 12 to 15 mph, with gusts as high as 24 mph.
7-day forecast for Green Castle
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 54°F | Cloudy | 12 to 15 mph WSW | 11% |
| Tonight | 43°F | Mostly Cloudy | 10 mph WSW | 6% |
| Thursday | 53°F | Slight Chance Light Rain | 8 to 12 mph WNW | 20% |
| Thursday Night | 41°F | Cloudy | 7 mph NNW | 10% |
| Friday | 48°F | Partly Sunny | 5 to 8 mph N | 5% |
| Friday Night | 29°F | Partly Cloudy | 0 to 3 mph NNE | 0% |
| Saturday | 52°F | Mostly Sunny | 0 to 3 mph WNW | 0% |
| Saturday Night | 33°F | Mostly Clear | 2 mph WSW | 0% |
| Sunday | 60°F | Sunny | 5 mph W | 0% |
| Sunday Night | 36°F | Clear | 2 mph WSW | 0% |
| Monday | 65°F | Sunny | 2 to 10 mph SW | 0% |
| Monday Night | 41°F | Clear | 6 mph WSW | 0% |
| Tuesday | 64°F | Sunny | 5 mph NW | 2% |
| Tuesday Night | 42°F | Partly Cloudy | 2 mph NNE | 2% |
Forecast source: National Weather Service (api.weather.gov) for Green Castle (40.259, -92.876). Updated through the day.
Growing snapshot for Green Castle
Last spring frost
Apr 26
First fall frost
Oct 14
Growing season
169 days
Hardiness zone
6a
More local growing data for Green Castle: nearby ZIP 63544 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Green City 5N, Mo (9 mi from Green Castle). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.