Severe Weather and Heavy Rainfall Potential for the Plains; Coastal Low Across the mid-Atlantic

An upper trough and frontal boundary will focus showers and thunderstorms across portions of the Plains through this evening. A few severe thunderstorms along with heavy rainfall are expected. Meanwhile, low pressure off the Southeast Coast will bring inclement weather across the Carolina Shorelines through tonight. This system is forecast to meander off the mid-Atlantic coast early this week. Read More >

Current conditions at

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

Partly Cloudy

85°F

29°C

Humidity 37%
Wind Speed SE 8 mph
Barometer 30.02 in (1016.5 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 14 Sep 1:56 pm EDT
Extended Forecast for

2 Miles SE Hummelstown PA

  • This Afternoon

    This Afternoon: Sunny, with a high near 86. Northeast wind around 5 mph.

    High: 86 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 60. Light northeast wind.

    Low: 60 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 84. Northeast wind 3 to 7 mph.

    High: 84 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 58. East wind around 6 mph becoming calm  after midnight.

    Low: 58 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers after 2pm.  Mostly sunny, with a high near 80. East wind 6 to 10 mph.  Chance of precipitation is 20%.

    High: 80 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers, mainly after 8pm.  Mostly cloudy, with a low around 60. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 60 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers.  Mostly cloudy, with a high near 75. Chance of precipitation is 50%.

    High: 75 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers before 2am.  Mostly cloudy, with a low around 61. Chance of precipitation is 30%.

    Low: 61 °F

    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 86. Northeast wind around 5 mph.
Tonight
Partly cloudy, with a low around 60. Light northeast wind.
Monday
Mostly sunny, with a high near 84. Northeast wind 3 to 7 mph.
Monday Night
Partly cloudy, with a low around 58. East wind around 6 mph becoming calm after midnight.
Tuesday
A slight chance of showers after 2pm. Mostly sunny, with a high near 80. East wind 6 to 10 mph. Chance of precipitation is 20%.
Tuesday Night
A chance of showers, mainly after 8pm. Mostly cloudy, with a low around 60. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A chance of showers. Mostly cloudy, with a high near 75. Chance of precipitation is 50%.
Wednesday Night
A chance of showers before 2am. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 60.
Friday
Sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 57.
Saturday
Mostly sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Hummelstown PA
 40.26°N 76.7°W (Elev. 427 ft)
12:59 pm EDT Sep 14, 2025
2pm EDT Sep 14, 2025-6pm EDT Sep 20, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database