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.

Overcast and Breezy

46°F

8°C

Humidity 37%
Wind Speed S 21 G 38 mph
Barometer 29.87 in (1011.7 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 13 Mar 1:56 pm EDT
Extended Forecast for

Hummelstown PA

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

    NOW until 11:00am Sat

    Wind Advisory

  • This Afternoon

    High: 49 °F

    Slight Chance
    Showers and
    Breezy

  • Tonight

    Tonight: A slight chance of showers between 7pm and 9pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 37. West wind around 15 mph, with gusts as high as 39 mph. Chance of precipitation is 20%.

    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. 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. High near 66. Breezy. Chance of precipitation is 100%.

    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

Detailed Forecast

This Afternoon
A slight chance of showers before 3pm. Mostly cloudy, with a high near 49. Breezy, with a south wind around 25 mph, with gusts as high as 43 mph. Chance of precipitation is 20%.
Tonight
A slight chance of showers between 7pm and 9pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 37. West wind around 15 mph, with gusts 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. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers. High near 66. Breezy. Chance of precipitation is 100%.
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.
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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:
2:05 pm EDT Mar 13, 2026
Forecast Valid:
2pm EDT Mar 13, 2026-6pm EDT Mar 19, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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