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.

Light Snow Fog/Mist

20°F

-7°C

Humidity 83%
Wind Speed SW 9 mph
Barometer 29.98 in
Dewpoint 16°F (-9°C)
Visibility 4.00 mi
Wind Chill10°F (-12°C)
Last update 18 Jan 9:35 pm EST
Extended Forecast for

Greencastle IN

Cold Weather Advisory January 19, 04:00am until January 20, 09:00am
Click here for hazard details and duration
Cold Weather Advisory

  • Tonight

    Tonight: A chance of snow, mainly before 10pm, then scattered flurries after midnight. Mostly cloudy, with a low around 7. West wind 9 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 40%.

    Low: 7 °F

    Chance Snow
    then Mostly
    Cloudy

  • M.L.King Day

    M.L.King Day: Cloudy through mid morning, then gradual clearing and cold, with a high near 14. Wind chill values as low as -12. West northwest wind 15 to 18 mph, with gusts as high as 33 mph.

    High: 14 °F

    Cold

  • Monday Night

    Monday Night: Increasing clouds, with a low around 6. Wind chill values as low as -3. West wind 6 to 9 mph.

    Low: 6 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 26. Wind chill values as low as -3. Southwest wind 6 to 10 mph.

    High: 26 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 20. South wind 6 to 13 mph, with gusts as high as 23 mph.

    Low: 20 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of snow before 1pm, then a slight chance of rain and snow. Mostly cloudy, with a high near 41. Southwest wind 13 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    High: 41 °F

    Slight Chance
    Snow then
    Slight Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 19. West northwest wind around 8 mph.

    Low: 19 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 27. West wind 8 to 10 mph, with gusts as high as 18 mph.

    High: 27 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 16. Light and variable wind becoming south southwest around 6 mph after midnight.

    Low: 16 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of snow, mainly before 10pm, then scattered flurries after midnight. Mostly cloudy, with a low around 7. West wind 9 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 40%.
M.L.King Day
Cloudy through mid morning, then gradual clearing and cold, with a high near 14. Wind chill values as low as -12. West northwest wind 15 to 18 mph, with gusts as high as 33 mph.
Monday Night
Increasing clouds, with a low around 6. Wind chill values as low as -3. West wind 6 to 9 mph.
Tuesday
Sunny, with a high near 26. Wind chill values as low as -3. Southwest wind 6 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 20. South wind 6 to 13 mph, with gusts as high as 23 mph.
Wednesday
A slight chance of snow before 1pm, then a slight chance of rain and snow. Mostly cloudy, with a high near 41. Southwest wind 13 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, with a low around 19. West northwest wind around 8 mph.
Thursday
Mostly sunny, with a high near 27. West wind 8 to 10 mph, with gusts as high as 18 mph.
Thursday Night
Partly cloudy, with a low around 16. Light and variable wind becoming south southwest around 6 mph after midnight.
Friday
Mostly cloudy, with a high near 31. Southwest wind 6 to 9 mph becoming northwest in the afternoon.
Friday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 13.
Saturday
A 30 percent chance of snow. Mostly cloudy, with a high near 21.
Saturday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 3.
Sunday
A 20 percent chance of snow. Partly sunny, with a high near 15.
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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:
9:45 pm EST Jan 18, 2026
Forecast Valid:
9pm EST Jan 18, 2026-6pm EST Jan 25, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation