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.

Fair

34°F

1°C

Humidity 100%
Wind Speed Calm
Barometer 30.50 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 18 Oct 3:35 am EDT
Extended Forecast for

Greencastle IN

Frost Advisory until October 18, 09:00am
Click here for hazard details and duration
Frost Advisory
  •  
    Frost Advisory until October 18, 09:00am

    NOW until 9:00am Sun

    Frost Advisory

  • Overnight

    Low: 37 °F

    Areas Frost

  • Sunday

    Sunday: Areas of frost before 9am. Otherwise, sunny, with a high near 64. South wind 3 to 7 mph.

    High: 64 °F

    Areas Frost
    then Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 37. Calm wind.

    Low: 37 °F

    Clear

  • Monday

    Monday: Areas of frost before 9am. Otherwise, sunny, with a high near 68. Calm wind.

    High: 68 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 39. Calm wind.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 71. Light east wind.

    High: 71 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 41. Light east wind.

    Low: 41 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 73. Calm wind.

    High: 73 °F

    Sunny

Detailed Forecast

Overnight
Areas of frost after 4am. Otherwise, clear, with a steady temperature around 37. Calm wind.
Sunday
Areas of frost before 9am. Otherwise, sunny, with a high near 64. South wind 3 to 7 mph.
Sunday Night
Clear, with a low around 37. Calm wind.
Monday
Areas of frost before 9am. Otherwise, sunny, with a high near 68. Calm wind.
Monday Night
Mostly clear, with a low around 39. Calm wind.
Tuesday
Sunny, with a high near 71. Light east wind.
Tuesday Night
Mostly clear, with a low around 41. Light east wind.
Wednesday
Sunny, with a high near 73. Calm wind.
Wednesday Night
Clear, with a low around 43. Calm wind.
Thursday
Sunny, with a high near 74. Calm wind.
Thursday Night
Clear, with a low around 45.
Friday
Sunny, with a high near 74.
Friday Night
Mostly clear, with a low around 45.
Saturday
Sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Greencastle IN
 39.65°N 86.83°W (Elev. 850 ft)
Last Update:
3:45 am EDT Oct 18, 2026
Forecast Valid:
3am EDT Oct 18, 2026-6pm EDT Oct 24, 2026
 
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Additional Resources

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