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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Greencastle IN

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 77. West northwest wind around 8 mph.

    High: 77 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 55. Northwest wind around 5 mph becoming calm in the evening.

    Low: 55 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 78. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 78 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 80. Calm wind.

    High: 80 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 83. Southwest wind 3 to 6 mph.

    High: 83 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 64. Light south southwest wind.

    Low: 64 °F

    Chance
    T-storms

  • Thursday

    Thursday: Sunny, with a high near 82. Calm wind becoming west northwest 5 to 8 mph in the afternoon.

    High: 82 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 77. West northwest wind around 8 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 55. Northwest wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 78. Calm wind becoming west northwest around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 56. Calm wind.
Tuesday
Sunny, with a high near 80. Calm wind.
Tuesday Night
Partly cloudy, with a low around 61. Calm wind.
Wednesday
Mostly sunny, with a high near 83. Southwest wind 3 to 6 mph.
Wednesday Night
A 40 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 64. Light south southwest wind.
Thursday
Sunny, with a high near 82. Calm wind becoming west northwest 5 to 8 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 62. Northwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 82.
Friday Night
Partly cloudy, with a low around 61.
Saturday
Mostly sunny, with a high near 82.
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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:
4:15 pm EDT Aug 23, 2026
Forecast Valid:
4pm EDT Aug 23, 2026-6pm EDT Aug 29, 2026
 
Forecast Discussion
 
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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