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.

Partly Cloudy

81°F

27°C

Humidity 37%
Wind Speed Calm
Barometer 29.99 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 2 Sep 5:15 pm EDT
Extended Forecast for

Greencastle IN

  • Tonight

    Tonight: Mostly clear, with a low around 55. Calm wind.

    Low: 55 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 81. Calm wind becoming southwest 5 to 9 mph in the afternoon.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 11pm. Increasing clouds, with a low around 55. Southwest wind 6 to 8 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 55 °F

    Showers
    Likely

  • Thursday

    Thursday: Cloudy through mid morning, then gradual clearing, with a high near 71. Northwest wind around 6 mph.

    High: 71 °F

    Gradual
    Clearing

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 52. Calm wind becoming south around 5 mph after midnight.

    Low: 52 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 76. West wind around 11 mph, with gusts as high as 20 mph.

    High: 76 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers, mainly before 2am. Partly cloudy, with a low around 47. North northwest wind 3 to 7 mph.

    Low: 47 °F

    Chance
    Showers

  • Saturday

    Saturday: A 10 percent chance of showers before 8am. Sunny, with a high near 72. Calm wind becoming west northwest 5 to 8 mph in the morning.

    High: 72 °F

    Slight Chance
    Showers then
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 47. West northwest wind around 5 mph becoming calm in the evening.

    Low: 47 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 55. Calm wind.
Wednesday
Sunny, with a high near 81. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Wednesday Night
Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 11pm. Increasing clouds, with a low around 55. Southwest wind 6 to 8 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
Cloudy through mid morning, then gradual clearing, with a high near 71. Northwest wind around 6 mph.
Thursday Night
Mostly clear, with a low around 52. Calm wind becoming south around 5 mph after midnight.
Friday
Mostly sunny, with a high near 76. West wind around 11 mph, with gusts as high as 20 mph.
Friday Night
A 30 percent chance of showers, mainly before 2am. Partly cloudy, with a low around 47. North northwest wind 3 to 7 mph.
Saturday
A 10 percent chance of showers before 8am. Sunny, with a high near 72. Calm wind becoming west northwest 5 to 8 mph in the morning.
Saturday Night
Mostly clear, with a low around 47. West northwest wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 72. Calm wind becoming northwest around 6 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 49.
Monday
Mostly sunny, with a high near 73.
Monday Night
Mostly cloudy, with a low around 54.
Tuesday
A 20 percent chance of showers. Partly sunny, with a high near 75.
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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:
5:15 pm EDT Sep 2, 2025
Forecast Valid:
5pm EDT Sep 2, 2025-6pm EDT Sep 9, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation