National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

Fog

46°F

8°C

Humidity 100%
Wind Speed Calm
Barometer 29.84 in (1010.7 mb)
Dewpoint 46°F (8°C)
Visibility 0.25 mi
Last update 26 Nov 4:56 am EST
Extended Forecast for

2 Miles SE Hummelstown PA

Dense Fog Advisory November 26, 05:19am until November 26, 08:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory November 26, 05:19am until November 26, 08:00am

    NOW until 8:00am Wed

    Dense Fog Advisory

  • Today

    High: 63 °F

    Patchy Fog
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: Partly cloudy, with a low around 35. West wind 15 to 18 mph, with gusts as high as 31 mph.

    Low: 35 °F

    Partly Cloudy

  • Thanksgiving Day

    Thanksgiving Day: Mostly cloudy, with a high near 40. West wind 14 to 18 mph, with gusts as high as 36 mph.

    High: 40 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 29. West wind 15 to 18 mph, with gusts as high as 32 mph.

    Low: 29 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 41. Breezy, with a west wind 18 to 21 mph, with gusts as high as 39 mph.

    High: 41 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

Detailed Forecast

Today
A slight chance of showers after 4pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 63. West wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 35. West wind 15 to 18 mph, with gusts as high as 31 mph.
Thanksgiving Day
Mostly cloudy, with a high near 40. West wind 14 to 18 mph, with gusts as high as 36 mph.
Thursday Night
Partly cloudy, with a low around 29. West wind 15 to 18 mph, with gusts as high as 32 mph.
Friday
Mostly sunny, with a high near 41. Breezy, with a west wind 18 to 21 mph, with gusts as high as 39 mph.
Friday Night
Partly cloudy, with a low around 27.
Saturday
Mostly sunny, with a high near 41.
Saturday Night
Mostly cloudy, with a low around 28.
Sunday
A chance of showers after 1pm. Cloudy, with a high near 45. Chance of precipitation is 30%.
Sunday Night
A chance of showers. Cloudy, with a low around 35. Chance of precipitation is 50%.
Monday
A chance of showers. Mostly cloudy, with a high near 45. Chance of precipitation is 30%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 30. Chance of precipitation is 50%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 39. Chance of precipitation is 50%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Hummelstown PA
 40.23°N 76.67°W (Elev. 594 ft)
Last Update:
4:06 am EST Nov 26, 2025
Forecast Valid:
5am EST Nov 26, 2025-6pm EST Dec 2, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation