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

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

Overcast

38°F

3°C

Humidity 79%
Wind Speed Calm
Barometer 29.64 in (1004.1 mb)
Dewpoint 32°F (0°C)
Visibility 7.00 mi
Last update 7 Jan 12:56 am EST
Extended Forecast for

Hallam PA

  • Overnight

    Overnight: A chance of showers before 2am. Patchy fog. Otherwise, mostly cloudy, with a low around 37. Southwest wind 5 to 7 mph. Chance of precipitation is 30%.

    Low: 37 °F

    Chance
    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 49. West wind 10 to 14 mph, with gusts as high as 29 mph.

    High: 49 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 33. West wind 5 to 9 mph.

    Low: 33 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 49. Light and variable wind.

    High: 49 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 37. Southeast wind 5 to 9 mph.

    Low: 37 °F

    Mostly Cloudy

  • Friday

    Friday: Showers likely, mainly after 1pm. Mostly cloudy, with a high near 55. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 55 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers. Cloudy, with a low around 50. Chance of precipitation is 50%.

    Low: 50 °F

    Chance
    Showers

  • Saturday

    Saturday: Showers. High near 59. Chance of precipitation is 90%.

    High: 59 °F

    Showers

  • Saturday Night

    Saturday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 41. Chance of precipitation is 60%.

    Low: 41 °F

    Showers
    Likely

Detailed Forecast

Overnight
A chance of showers before 2am. Patchy fog. Otherwise, mostly cloudy, with a low around 37. Southwest wind 5 to 7 mph. Chance of precipitation is 30%.
Wednesday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 49. West wind 10 to 14 mph, with gusts as high as 29 mph.
Wednesday Night
Partly cloudy, with a low around 33. West wind 5 to 9 mph.
Thursday
Mostly sunny, with a high near 49. Light and variable wind.
Thursday Night
Mostly cloudy, with a low around 37. Southeast wind 5 to 9 mph.
Friday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 55. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A chance of showers. Cloudy, with a low around 50. Chance of precipitation is 50%.
Saturday
Showers. High near 59. Chance of precipitation is 90%.
Saturday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 41. Chance of precipitation is 60%.
Sunday
A chance of showers before 1pm. Partly sunny, with a high near 45. Breezy. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 28.
Monday
Sunny, with a high near 38.
Monday Night
Mostly clear, with a low around 27.
Tuesday
Mostly sunny, with a high near 43.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hallam PA
 40.02°N 76.6°W (Elev. 522 ft)
Last Update:
1:26 am EST Jan 7, 2026
Forecast Valid:
1am EST Jan 7, 2026-6pm EST Jan 13, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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