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

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

A Few Clouds

62°F

17°C

Humidity 46%
Wind Speed E 5 mph
Barometer 29.81 in (1009.5 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 24 Apr 12:56 am EDT
Extended Forecast for

Hallam PA

  • Overnight

    Overnight: Partly cloudy, with a low around 53. Calm wind.

    Low: 53 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of showers before 3pm, then a slight chance of showers and thunderstorms between 3pm and 4pm. Mostly sunny, with a high near 71. Light northeast wind. Chance of precipitation is 20%.

    High: 71 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely after 4am. Mostly cloudy, with a low around 49. Light southeast wind increasing to 5 to 9 mph in the evening. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 49 °F

    Showers
    Likely

  • Saturday

    Saturday: Rain, mainly after 8am. High near 52. East wind 10 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 52 °F

    Rain

  • Saturday Night

    Saturday Night: Rain. Low around 42. East wind 11 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 42 °F

    Rain

  • Sunday

    Sunday: Rain likely before 8am, then a chance of showers, mainly between 8am and 2pm. Mostly cloudy, with a high near 54. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 54 °F

    Rain Likely
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 53. Calm wind.
Friday
A slight chance of showers before 3pm, then a slight chance of showers and thunderstorms between 3pm and 4pm. Mostly sunny, with a high near 71. Light northeast wind. Chance of precipitation is 20%.
Friday Night
A chance of showers and thunderstorms, then showers likely after 4am. Mostly cloudy, with a low around 49. Light southeast wind increasing to 5 to 9 mph in the evening. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Rain, mainly after 8am. High near 52. East wind 10 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
Rain. Low around 42. East wind 11 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Rain likely before 8am, then a chance of showers, mainly between 8am and 2pm. Mostly cloudy, with a high near 54. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Partly cloudy, with a low around 40.
Monday
Sunny, with a high near 64.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
Showers likely, mainly after 2pm. Partly sunny, with a high near 63. Chance of precipitation is 60%.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 51. Chance of precipitation is 60%.
Wednesday
A chance of showers. Partly sunny, with a high near 68. Chance of precipitation is 50%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 48. Chance of precipitation is 40%.
Thursday
A chance of showers. Partly sunny, with a high near 66. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Hallam PA
 40.02°N 76.6°W (Elev. 522 ft)
Last Update:
12:29 am EDT Apr 24, 2026
Forecast Valid:
1am EDT Apr 24, 2026-6pm EDT Apr 30, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation