Green Castle, MO Weather & Growing Conditions
This Afternoon
69°F
Chance Rain Showers
A chance of rain showers. Partly sunny. High near 69, with temperatures falling to around 62 in the afternoon. South southwest wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Chance Rain Showers | 15 mph SSW | 26% |
| Tonight | 48°F | Mostly Cloudy | 10 to 14 mph SW | 12% |
| Wednesday | 55°F | Mostly Cloudy | 14 to 17 mph WSW | 11% |
| Wednesday Night | 42°F | Mostly Cloudy | 10 mph WSW | 3% |
| Thursday | 55°F | Partly Sunny then Slight Chance Rain Showers | 7 to 12 mph WNW | 22% |
| Thursday Night | 42°F | Mostly Cloudy | 7 mph NNW | 12% |
| Friday | 53°F | Partly Sunny | 5 to 9 mph N | 6% |
| Friday Night | 36°F | Mostly Cloudy | 0 to 3 mph N | 0% |
| Saturday | 55°F | Partly Sunny | 0 to 5 mph WNW | 1% |
| Saturday Night | 37°F | Mostly Clear | 0 to 3 mph W | 6% |
| Sunday | 61°F | Sunny | 3 to 7 mph W | 5% |
| Sunday Night | 38°F | Mostly Clear | 5 mph WSW | 1% |
| Monday | 65°F | Sunny | 5 to 12 mph SW | 0% |
| Monday Night | 42°F | Mostly Clear | 6 mph W | 0% |
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 Nov 4, 2026.