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.

Mostly Cloudy

80°F

27°C

Humidity 78%
Wind Speed NE 8 mph
Barometer 30.16 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 12 Jul 12:15 pm EDT
Extended Forecast for

Greencastle IN

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 84. Northeast wind around 10 mph.

    High: 84 °F

    Mostly Sunny

  • Tonight

    Tonight: Clear, with a low around 63. Northeast wind 5 to 8 mph.

    Low: 63 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 86. Northeast wind 6 to 9 mph.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 66. North northeast wind 5 to 7 mph becoming calm in the evening.

    Low: 66 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89. Light east northeast wind.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 69. Light and variable wind.

    Low: 69 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 91. Light west wind.

    High: 91 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 70. West wind around 5 mph becoming calm in the evening.

    Low: 70 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 89. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 89 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 84. Northeast wind around 10 mph.
Tonight
Clear, with a low around 63. Northeast wind 5 to 8 mph.
Monday
Sunny, with a high near 86. Northeast wind 6 to 9 mph.
Monday Night
Clear, with a low around 66. North northeast wind 5 to 7 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 89. Light east northeast wind.
Tuesday Night
Mostly clear, with a low around 69. Light and variable wind.
Wednesday
Sunny and hot, with a high near 91. Light west wind.
Wednesday Night
Mostly clear, with a low around 70. West wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 89. Calm wind becoming west northwest around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 70. West northwest wind around 5 mph becoming calm in the evening.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Friday Night
A 10 percent chance of showers and thunderstorms. Mostly clear, with a low around 70.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
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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:
12:32 pm EDT Jul 12, 2026
Forecast Valid:
12pm EDT Jul 12, 2026-6pm EDT Jul 18, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation