Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

Light Rain and Breezy

54°F

12°C

Humidity 87%
Wind Speed NW 23 G 31 mph
Barometer 29.82 in (1009.9 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 19 Apr 5:56 am EDT
Extended Forecast for

Hallam PA

Freeze Watch April 21, 12:00am until April 21, 09:00am
Click here for hazard details and duration
Freeze Watch
  • Today

    Today: Showers, mainly before 11am.  High near 54. Northwest wind 14 to 18 mph, with gusts as high as 30 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 54 °F

    Showers then
    Slight Chance
    Showers

  • Tonight

    Tonight: Increasing clouds, with a low around 39. West wind 6 to 11 mph.

    Low: 39 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 49. Northwest wind 11 to 14 mph, with gusts as high as 25 mph.

    High: 49 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 29. Northwest wind 5 to 9 mph becoming light north  after midnight.

    Low: 29 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 55. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 55 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers after 2am.  Partly cloudy, with a low around 45. Chance of precipitation is 20%.

    Low: 45 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers between 8am and 2pm.  Partly sunny, with a high near 66. Chance of precipitation is 30%.

    High: 66 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

Detailed Forecast

Today
Showers, mainly before 11am. High near 54. Northwest wind 14 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
Increasing clouds, with a low around 39. West wind 6 to 11 mph.
Monday
Mostly sunny, with a high near 49. Northwest wind 11 to 14 mph, with gusts as high as 25 mph.
Monday Night
Mostly clear, with a low around 29. Northwest wind 5 to 9 mph becoming light north after midnight.
Tuesday
Sunny, with a high near 55. Calm wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
A slight chance of showers after 2am. Partly cloudy, with a low around 45. Chance of precipitation is 20%.
Wednesday
A chance of showers between 8am and 2pm. Partly sunny, with a high near 66. Chance of precipitation is 30%.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Sunny, with a high near 73.
Thursday Night
Mostly clear, with a low around 50.
Friday
Sunny, with a high near 75.
Friday Night
Partly cloudy, with a low around 53.
Saturday
A chance of showers. Partly sunny, with a high near 72. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
Hallam PA
 40.02°N 76.6°W (Elev. 522 ft)
2:21 am EDT Apr 19, 2026
6am EDT Apr 19, 2026-6pm EDT Apr 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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