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

68°F

20°C

Humidity 46%
Wind Speed S 8 mph
Barometer 29.80 in
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 21 Mar 8:35 pm EDT
Extended Forecast for

Greencastle IN

  • 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

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 51. South wind 6 to 8 mph.

    Low: 51 °F

    Slight Chance
    T-storms

Detailed Forecast

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 slight chance of rain, then a chance of rain and thunderstorms after 2pm. Mostly sunny, with a high near 73. South southwest wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
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.
Friday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 32.
Saturday
Mostly sunny, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Greencastle IN
 39.65°N 86.86°W (Elev. 850 ft)
Last Update:
8:45 pm EDT Mar 21, 2026
Forecast Valid:
8pm EDT Mar 21, 2026-6pm EDT Mar 28, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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