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.

Mostly Cloudy

47°F

8°C

Humidity 50%
Wind Speed E 16 mph
Barometer 29.68 in (1005.3 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 13 Mar 6:56 pm EDT
Extended Forecast for

Hummelstown PA

Wind Advisory March 13, 07:04pm until March 14, 11:00am
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory March 13, 07:04pm until March 14, 11:00am

    NOW until 11:00am Sat

    Wind Advisory

  • Tonight

    Low: 37 °F

    Slight Chance
    Showers then
    Clear

  • Saturday

    Saturday: Sunny, with a high near 49. West wind 14 to 17 mph, with gusts as high as 37 mph.

    High: 49 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 34. Northwest wind around 5 mph becoming calm in the evening.

    Low: 34 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly cloudy, with a high near 53. Breezy, with a southeast wind 7 to 12 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 53 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Sunday Night

    Sunday Night: Showers, mainly after 2am. Low around 47. Southeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Chance
    Showers then
    Showers

  • Monday

    Monday: Showers, with thunderstorms also possible after 2pm. High near 66. Breezy. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 66 °F

    Showers and
    Breezy

  • Monday Night

    Monday Night: Rain and snow showers likely before 2am. Mostly cloudy, with a low around 28. Breezy. Chance of precipitation is 70%.

    Low: 28 °F

    Rain/Snow
    Likely and
    Breezy

  • Tuesday

    Tuesday: Partly sunny, with a high near 34. Breezy.

    High: 34 °F

    Partly Sunny
    and Breezy

Detailed Forecast

Tonight
A slight chance of showers before 9pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 37. South wind 14 to 17 mph becoming west after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 20%.
Saturday
Sunny, with a high near 49. West wind 14 to 17 mph, with gusts as high as 37 mph.
Saturday Night
Increasing clouds, with a low around 34. Northwest wind around 5 mph becoming calm in the evening.
Sunday
Mostly cloudy, with a high near 53. Breezy, with a southeast wind 7 to 12 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Sunday Night
Showers, mainly after 2am. Low around 47. Southeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers, with thunderstorms also possible after 2pm. High near 66. Breezy. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Rain and snow showers likely before 2am. Mostly cloudy, with a low around 28. Breezy. Chance of precipitation is 70%.
Tuesday
Partly sunny, with a high near 34. Breezy.
Tuesday Night
Partly cloudy, with a low around 21.
Wednesday
Mostly sunny, with a high near 39.
Wednesday Night
Mostly cloudy, with a low around 28.
Thursday
Partly sunny, with a high near 47.
Thursday Night
Partly cloudy, with a low around 34.
Friday
Partly sunny, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hummelstown PA
 40.26°N 76.7°W (Elev. 427 ft)
Last Update:
6:06 pm EDT Mar 13, 2026
Forecast Valid:
7pm EDT Mar 13, 2026-6pm EDT Mar 20, 2026
 
Forecast Discussion
 
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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