National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Putnam County Regional Airport (KGPC)

Lat: 39.64°NLon: 86.82°WElev: 827ft.

Fair

28°F

-2°C

Humidity 63%
Wind Speed Calm
Barometer 30.02 in
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Last update 3 Jan 6:55 pm EST
Extended Forecast for

Greencastle IN

  • Tonight

    Tonight: Partly cloudy, with a low around 19. Light and variable wind.

    Low: 19 °F

    Partly Cloudy

  • Sunday

    Sunday: Increasing clouds, with a high near 37. Calm wind becoming south around 5 mph in the afternoon.

    High: 37 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Cloudy during the early evening, then gradual clearing, with a low around 29. South southeast wind 3 to 8 mph.

    Low: 29 °F

    Gradual
    Clearing

  • Monday

    Monday: Mostly sunny, with a high near 49. Southwest wind 8 to 11 mph, with gusts as high as 21 mph.

    High: 49 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 38. South wind around 6 mph.

    Low: 38 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 56. South wind 7 to 10 mph, with gusts as high as 18 mph.

    High: 56 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37. Southwest wind 3 to 6 mph.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 54. West wind 3 to 6 mph.

    High: 54 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 42. Calm wind becoming south southeast around 6 mph after midnight.

    Low: 42 °F

    Partly Cloudy
    then Slight
    Chance Rain

Detailed Forecast

Tonight
Partly cloudy, with a low around 19. Light and variable wind.
Sunday
Increasing clouds, with a high near 37. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Cloudy during the early evening, then gradual clearing, with a low around 29. South southeast wind 3 to 8 mph.
Monday
Mostly sunny, with a high near 49. Southwest wind 8 to 11 mph, with gusts as high as 21 mph.
Monday Night
Mostly cloudy, with a low around 38. South wind around 6 mph.
Tuesday
Mostly cloudy, with a high near 56. South wind 7 to 10 mph, with gusts as high as 18 mph.
Tuesday Night
Mostly cloudy, with a low around 37. Southwest wind 3 to 6 mph.
Wednesday
Mostly sunny, with a high near 54. West wind 3 to 6 mph.
Wednesday Night
A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 42. Calm wind becoming south southeast around 6 mph after midnight.
Thursday
Rain likely, mainly after 1pm. Mostly cloudy, with a high near 57. Southeast wind 6 to 9 mph. Chance of precipitation is 60%.
Thursday Night
Rain likely. Cloudy, with a low around 46. Chance of precipitation is 60%.
Friday
A 40 percent chance of rain. Mostly cloudy, with a high near 57.
Friday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 36.
Saturday
A 20 percent chance of rain. Partly sunny, with a high near 43.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Greencastle IN
 39.65°N 86.83°W (Elev. 850 ft)
Last Update:
7:15 pm EST Jan 3, 2026
Forecast Valid:
7pm EST Jan 3, 2026-6pm EST Jan 10, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation