Hazardous Weather Conditions

Current conditions at

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

Overcast

25°F

-4°C

Humidity 55%
Wind Speed W 13 mph
Barometer 29.90 in (1012.8 mb)
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 31 Dec 6:56 am EST
Extended Forecast for

Hummelstown PA

  • Today

    Today: Mostly cloudy, with a high near 35. West wind 10 to 13 mph, with gusts as high as 22 mph.

    High: 35 °F

    Mostly Cloudy

  • Tonight

    Tonight: Scattered snow showers, mainly before 1am. The snow could be heavy at times.  Cloudy, then gradually becoming partly cloudy, with a low around 23. Southwest wind 7 to 14 mph becoming northwest after midnight. Winds could gust as high as 24 mph.  Chance of precipitation is 40%.

    Low: 23 °F

    Heavy Snow

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 29. Northwest wind around 15 mph, with gusts as high as 26 mph.

    High: 29 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 18. West wind 6 to 9 mph.

    Low: 18 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly cloudy, with a high near 35. Southwest wind 6 to 10 mph.

    High: 35 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 34.

    High: 34 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 35.

    High: 35 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 35. West wind 10 to 13 mph, with gusts as high as 22 mph.
Tonight
Scattered snow showers, mainly before 1am. The snow could be heavy at times. Cloudy, then gradually becoming partly cloudy, with a low around 23. Southwest wind 7 to 14 mph becoming northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 40%.
New Year's Day
Mostly sunny, with a high near 29. Northwest wind around 15 mph, with gusts as high as 26 mph.
Thursday Night
Increasing clouds, with a low around 18. West wind 6 to 9 mph.
Friday
Mostly cloudy, with a high near 35. Southwest wind 6 to 10 mph.
Friday Night
Partly cloudy, with a low around 22.
Saturday
Partly sunny, with a high near 34.
Saturday Night
Mostly cloudy, with a low around 21.
Sunday
Mostly sunny, with a high near 35.
Sunday Night
Mostly cloudy, with a low around 20.
Monday
Mostly cloudy, with a high near 38.
Monday Night
Mostly cloudy, with a low around 28.
Tuesday
Mostly cloudy, with a high near 40.
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ABOUT THIS FORECAST

 
Point Forecast:
Hummelstown PA
 40.26°N 76.7°W (Elev. 427 ft)
7:26 am EST Dec 31, 2025
7am EST Dec 31, 2025-6pm EST Jan 6, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database