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

62°F

17°C

Humidity 54%
Wind Speed E 5 mph
Barometer 30.09 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 16 Oct 7:15 pm EDT
Extended Forecast for

Greencastle IN

  • Tonight

    Tonight: Mostly clear, with a low around 49. Calm wind becoming east southeast around 6 mph in the evening.

    Low: 49 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 73. South wind 6 to 9 mph.

    High: 73 °F

    Partly Sunny

  • Friday Night

    Friday Night: Cloudy, then gradually becoming partly cloudy, with a low around 57. South southeast wind 6 to 8 mph.

    Low: 57 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm after 2pm. Increasing clouds, with a high near 81. South southwest wind 8 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Mostly Sunny
    then Showers
    Likely

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 11pm, then showers between 11pm and 5am, then showers and possibly a thunderstorm after 5am. Low around 50. South southwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

    Low: 50 °F

    Showers

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms before 2pm. Partly sunny, with a high near 61. Breezy, with a west wind 14 to 20 mph, with gusts as high as 30 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 61 °F

    Chance
    T-storms and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39. West wind 6 to 11 mph, with gusts as high as 20 mph.

    Low: 39 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 66. South southwest wind 5 to 11 mph.

    High: 66 °F

    Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers after 2am. Partly cloudy, with a low around 48. South wind around 9 mph.

    Low: 48 °F

    Mostly Clear
    then Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 49. Calm wind becoming east southeast around 6 mph in the evening.
Friday
Partly sunny, with a high near 73. South wind 6 to 9 mph.
Friday Night
Cloudy, then gradually becoming partly cloudy, with a low around 57. South southeast wind 6 to 8 mph.
Saturday
Showers likely and possibly a thunderstorm after 2pm. Increasing clouds, with a high near 81. South southwest wind 8 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and possibly a thunderstorm before 11pm, then showers between 11pm and 5am, then showers and possibly a thunderstorm after 5am. Low around 50. South southwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Sunday
A 50 percent chance of showers and thunderstorms before 2pm. Partly sunny, with a high near 61. Breezy, with a west wind 14 to 20 mph, with gusts as high as 30 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Mostly clear, with a low around 39. West wind 6 to 11 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 66. South southwest wind 5 to 11 mph.
Monday Night
A 30 percent chance of showers after 2am. Partly cloudy, with a low around 48. South wind around 9 mph.
Tuesday
A 30 percent chance of showers, mainly before 2pm. Mostly sunny, with a high near 63. West wind 10 to 14 mph, with gusts as high as 24 mph.
Tuesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 38.
Wednesday
Sunny, with a high near 60.
Wednesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 38.
Thursday
A 10 percent chance of showers. Mostly sunny, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
Greencastle IN
 39.65°N 86.86°W (Elev. 850 ft)
Last Update:
7:15 pm EDT Oct 16, 2025
Forecast Valid:
7pm EDT Oct 16, 2025-6pm EDT Oct 23, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation