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

  • Tonight

    Tonight: Partly cloudy, with a low around 70. South wind 5 to 7 mph.

    Low: 70 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny and hot, with a high near 91. Southwest wind 6 to 11 mph.

    High: 91 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 73. South southwest wind around 6 mph.

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 94. Heat index values as high as 100. Southwest wind 5 to 8 mph.

    High: 94 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 74. South southwest wind 3 to 5 mph.

    Low: 74 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 95. Southwest wind 3 to 8 mph.

    High: 95 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 74. Light south southwest wind.

    Low: 74 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 93. South southwest wind 3 to 7 mph.

    High: 93 °F

    Hot

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 72. Calm wind.

    Low: 72 °F

    Partly Cloudy
    then Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 70. South wind 5 to 7 mph.
Monday
Mostly sunny and hot, with a high near 91. Southwest wind 6 to 11 mph.
Monday Night
Mostly clear, with a low around 73. South southwest wind around 6 mph.
Tuesday
Sunny and hot, with a high near 94. Heat index values as high as 100. Southwest wind 5 to 8 mph.
Tuesday Night
Mostly clear, with a low around 74. South southwest wind 3 to 5 mph.
Wednesday
Sunny and hot, with a high near 95. Southwest wind 3 to 8 mph.
Wednesday Night
Mostly clear, with a low around 74. Light south southwest wind.
Thursday
Sunny and hot, with a high near 93. South southwest wind 3 to 7 mph.
Thursday Night
A 40 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 72. Calm wind.
Friday
A 30 percent chance of showers and thunderstorms, mainly before 8am. Mostly sunny, with a high near 90. Calm wind becoming west southwest around 5 mph in the afternoon.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Saturday
Mostly sunny, with a high near 87.
Saturday Night
Mostly clear, with a low around 65.
Sunday
Sunny, with a high near 84.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Greencastle IN
 39.65°N 86.83°W (Elev. 850 ft)
Last Update:
5:15 pm EDT Aug 30, 2026
Forecast Valid:
5pm EDT Aug 30, 2026-6pm EDT Sep 6, 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