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

74°F

23°C

Humidity 29%
Wind Speed Calm
Barometer 29.85 in
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 21 Mar 3:35 pm EDT
Extended Forecast for

Greencastle IN

  • This Afternoon

    This Afternoon: Sunny, with a high near 77. South southwest wind around 8 mph.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 61. South southwest wind 7 to 9 mph.

    Low: 61 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 80. South southwest wind 10 to 13 mph, with gusts as high as 22 mph.

    High: 80 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of rain and thunderstorms before 11pm, then a chance of rain between 11pm and 2am. Mostly cloudy, with a low around 34. North wind 14 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

    Low: 34 °F

    Chance Rain

  • Monday

    Monday: Mostly sunny, with a high near 51. North wind 8 to 11 mph, with gusts as high as 18 mph.

    High: 51 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 33. North northeast wind 3 to 6 mph.

    Low: 33 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 58. South wind around 6 mph.

    High: 58 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 41. South southeast wind 3 to 5 mph.

    Low: 41 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 63. South wind 6 to 9 mph.

    High: 63 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 77. South southwest wind around 8 mph.
Tonight
Mostly clear, with a low around 61. South southwest wind 7 to 9 mph.
Sunday
Mostly sunny, with a high near 80. South southwest wind 10 to 13 mph, with gusts as high as 22 mph.
Sunday Night
A chance of rain and thunderstorms before 11pm, then a chance of rain between 11pm and 2am. Mostly cloudy, with a low around 34. North wind 14 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 51. North wind 8 to 11 mph, with gusts as high as 18 mph.
Monday Night
Partly cloudy, with a low around 33. North northeast wind 3 to 6 mph.
Tuesday
Mostly sunny, with a high near 58. South wind around 6 mph.
Tuesday Night
Mostly cloudy, with a low around 41. South southeast wind 3 to 5 mph.
Wednesday
Mostly cloudy, with a high near 63. South wind 6 to 9 mph.
Wednesday Night
A 20 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 51. South wind 6 to 8 mph.
Thursday
A 30 percent chance of rain and thunderstorms. Mostly sunny, with a high near 73.
Thursday Night
A 50 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 40.
Friday
A 30 percent chance of rain. Partly sunny, with a high near 49.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Greencastle IN
 39.65°N 86.86°W (Elev. 850 ft)
Last Update:
3:45 pm EDT Mar 21, 2026
Forecast Valid:
4pm EDT Mar 21, 2026-6pm EDT Mar 27, 2026
 
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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