Greencastle, MO Weather Forecast

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Greencastle, MO Weather Forecast

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Greencastle MO weather  - Clear - 57°F
Clear
57°F
Updated 10:49 pm
Feels Like 48°F
Humidity 57%
Wind SW 8 mph
Barometer  30.08 in
Dew Point 42°F
Greencastle MO weather  - Clear - 14°C
Clear
14°C
Updated 10:49 pm
Feels Like 9°C
Humidity 57%
Wind SW 13 km/h
Barometer  101.9 kPa
Dew Point 6°C

Greencastle Weather Forecast

THIS AFTERNOON TONIGHT TUESDAY TUESDAY NIGHT VETERANS DAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY SATURDAY SATURDAY NIGHT SUNDAY
Greencastle, MO Weather - This Afternoon Sunny Greencastle, MO Weather - Tonight Patchy Fog Greencastle, MO Weather - Tuesday Patchy Fog Greencastle, MO Weather - Tuesday Night Clearing Greencastle, MO Weather - Veterans Day Mostly Sunny Greencastle, MO Weather - Wednesday Night Partly Cloudy Greencastle, MO Weather - Thursday Mostly Sunny Greencastle, MO Weather - Thursday Night Mostly Clear Greencastle, MO Weather - Friday Mostly Clear Greencastle, MO Weather - Saturday Mostly Clear Greencastle, MO Weather - Saturday Night Mostly Clear Greencastle, MO Weather - Sunday Mostly Sunny
Sunny Patchy Fog Patchy Fog Clearing Mostly Sunny Partly Cloudy Mostly Sunny Mostly Clear Mostly Clear Mostly Clear Mostly Clear Mostly Sunny
Hi: 65°FHi: 18°C
Lo: 41°FLo: 5°C Hi: 65°FHi: 18°C
Lo: 45°FLo: 7°C Hi: 59°FHi: 15°C
Lo: 39°FLo: 4°C Hi: 49°FHi: 9°C
Hi: 45°FHi: 7°C
Lo: 29°FLo: -2°C
Hi: 45°FHi: 7°C
Lo: 29°FLo: -2°C
Hi: 50°FHi: 10°C
Lo: 35°FLo: 2°C
Hi: 50°FHi: 10°C
Lo: 35°FLo: 2°C
Hi: 55°FHi: 13°C
POP = Probability of Precipitation.
Weather Outlook Updated: 1227 PM CST Mon Nov 09 2026 Greencastle, MO Weather - WeatherWorld.com

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Greencastle Forecast Discussion

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Issued: 539 PM CST Mon Nov 9 2026

Key Messages

  • Mild Weather Conditions To Start the Week
  • Low Rain Chances East of Hwy. 63 Midweek
  • Cooler Next Weekend

Discussion

... Issued at 136 PM CST Mon Nov 9 2026

Mid and upper-level synoptic pattern is fairly progressive for the northern third of the CONUS and into the Canadian Prairie Provinces. This is currently resulting in modest mid-level ridging across the eastern Plains and lower Missouri River Valley this afternoon, continuing the development of the surface anticyclone, but is starting ...