National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Putnam County Regional Airport (KGPC)

Lat: 39.64°NLon: 86.82°WElev: 827ft.

Overcast and Windy

64°F

18°C

Humidity 78%
Wind Speed S 30 G 39 mph
Barometer 29.66 in
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 8 Jan 9:35 pm EST
Extended Forecast for

Greencastle IN

  • Tonight

    Tonight: Rain and thunderstorms before 3am, then rain likely and possibly a thunderstorm between 3am and 4am, then a chance of rain after 4am. Steady temperature around 61. Breezy, with a south southwest wind 18 to 24 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 61 °F

    Breezy. Rain
    Likely then
    Rain

  • Friday

    Friday: Mostly cloudy, with a temperature falling to around 46 by 4pm. Breezy, with a west southwest wind 16 to 21 mph becoming north northwest 9 to 14 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 58 °F⇓

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 39. North wind around 6 mph becoming calm in the evening.

    Low: 39 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 40 percent chance of rain, mainly before 1pm. Mostly cloudy, with a high near 44. Light southwest wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

    High: 44 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A 20 percent chance of snow after 1am. Mostly cloudy, with a low around 22. West wind 9 to 13 mph, with gusts as high as 21 mph.

    Low: 22 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Sunday

    Sunday: Partly sunny, with a high near 30. West northwest wind 10 to 14 mph, with gusts as high as 22 mph.

    High: 30 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 22. West northwest wind 3 to 6 mph.

    Low: 22 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 40. South southwest wind 7 to 13 mph, with gusts as high as 22 mph.

    High: 40 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 31. South southwest wind around 9 mph, with gusts as high as 18 mph.

    Low: 31 °F

    Partly Cloudy

Detailed Forecast

Tonight
Rain and thunderstorms before 3am, then rain likely and possibly a thunderstorm between 3am and 4am, then a chance of rain after 4am. Steady temperature around 61. Breezy, with a south southwest wind 18 to 24 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Mostly cloudy, with a temperature falling to around 46 by 4pm. Breezy, with a west southwest wind 16 to 21 mph becoming north northwest 9 to 14 mph in the afternoon. Winds could gust as high as 31 mph.
Friday Night
Mostly cloudy, with a low around 39. North wind around 6 mph becoming calm in the evening.
Saturday
A 40 percent chance of rain, mainly before 1pm. Mostly cloudy, with a high near 44. Light southwest wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Saturday Night
A 20 percent chance of snow after 1am. Mostly cloudy, with a low around 22. West wind 9 to 13 mph, with gusts as high as 21 mph.
Sunday
Partly sunny, with a high near 30. West northwest wind 10 to 14 mph, with gusts as high as 22 mph.
Sunday Night
Mostly clear, with a low around 22. West northwest wind 3 to 6 mph.
Monday
Mostly sunny, with a high near 40. South southwest wind 7 to 13 mph, with gusts as high as 22 mph.
Monday Night
Partly cloudy, with a low around 31. South southwest wind around 9 mph, with gusts as high as 18 mph.
Tuesday
Partly sunny, with a high near 46. South southwest wind 8 to 11 mph, with gusts as high as 20 mph.
Tuesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 33.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 39.
Wednesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 22. Chance of precipitation is 20%.
Thursday
Partly sunny, with a high near 31.
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ABOUT THIS FORECAST

 
Point Forecast:
Greencastle IN
 39.65°N 86.86°W (Elev. 850 ft)
Last Update:
9:45 pm EST Jan 8, 2026
Forecast Valid:
9pm EST Jan 8, 2026-6pm EST Jan 15, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation