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

16°F

-9°C

Humidity 47%
Wind Speed W 8 mph
Barometer 30.46 in
Dewpoint 0°F (-18°C)
Visibility 10.00 mi
Wind Chill5°F (-15°C)
Last update 20 Jan 10:35 am EST
Extended Forecast for

Greencastle IN

  • Today

    Today: Mostly sunny, with a high near 24. Wind chill values as low as -1. Southwest wind 7 to 10 mph.

    High: 24 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a temperature rising to around 27 by 4am. South wind 8 to 15 mph, with gusts as high as 24 mph.

    Low: 23 °F⇑

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of snow before 1pm. Partly sunny, with a high near 40. South southwest wind 14 to 17 mph, with gusts as high as 28 mph.

    High: 40 °F

    Slight Chance
    Snow

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 22. West southwest wind 7 to 10 mph, with gusts as high as 18 mph.

    Low: 22 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 31. West northwest wind 7 to 9 mph.

    High: 31 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 9. West northwest wind around 6 mph.

    Low: 9 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy and cold, with a high near 13. North northwest wind 8 to 10 mph.

    High: 13 °F

    Cold

  • Friday Night

    Friday Night: A 20 percent chance of snow after 1am. Mostly cloudy, with a low around 2. North wind around 8 mph.

    Low: 2 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday

    Saturday: A 30 percent chance of snow, mainly after 1pm. Mostly cloudy and cold, with a high near 13. Northeast wind around 8 mph.

    High: 13 °F

    Chance Snow

Detailed Forecast

Today
Mostly sunny, with a high near 24. Wind chill values as low as -1. Southwest wind 7 to 10 mph.
Tonight
Mostly cloudy, with a temperature rising to around 27 by 4am. South wind 8 to 15 mph, with gusts as high as 24 mph.
Wednesday
A 20 percent chance of snow before 1pm. Partly sunny, with a high near 40. South southwest wind 14 to 17 mph, with gusts as high as 28 mph.
Wednesday Night
Partly cloudy, with a low around 22. West southwest wind 7 to 10 mph, with gusts as high as 18 mph.
Thursday
Mostly sunny, with a high near 31. West northwest wind 7 to 9 mph.
Thursday Night
Mostly cloudy, with a low around 9. West northwest wind around 6 mph.
Friday
Mostly cloudy and cold, with a high near 13. North northwest wind 8 to 10 mph.
Friday Night
A 20 percent chance of snow after 1am. Mostly cloudy, with a low around 2. North wind around 8 mph.
Saturday
A 30 percent chance of snow, mainly after 1pm. Mostly cloudy and cold, with a high near 13. Northeast wind around 8 mph.
Saturday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 5. North wind around 7 mph.
Sunday
A 20 percent chance of snow. Mostly sunny, with a high near 20.
Sunday Night
Partly cloudy, with a low around 4.
Monday
Mostly sunny, with a high near 22.
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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:
10:15 am EST Jan 20, 2026
Forecast Valid:
10am EST Jan 20, 2026-6pm EST Jan 26, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation