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

Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Current conditions at

Harrisburg, Capital City Airport (KCXY)

Lat: 40.22°NLon: 76.86°WElev: 335ft.

Partly Cloudy

75°F

24°C

Humidity 34%
Wind Speed S 8 mph
Barometer 29.81 in (1009.4 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 16 Jun 6:56 pm EDT
Extended Forecast for

Mount Holly Springs PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 59. South wind around 5 mph becoming calm in the evening.

    Low: 59 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 83. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 83 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 64. Calm wind becoming south around 5 mph after midnight. Winds could gust as high as 21 mph.

    Low: 64 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms before 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 88. West wind 13 to 16 mph, with gusts as high as 34 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of showers after 2am. Mostly cloudy, with a low around 64. West wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 20%.

    Low: 64 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Juneteenth

    Juneteenth: Partly sunny, with a high near 80.

    High: 80 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 59. South wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 83. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 64. Calm wind becoming south around 5 mph after midnight. Winds could gust as high as 21 mph.
Thursday
A chance of showers and thunderstorms before 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 88. West wind 13 to 16 mph, with gusts as high as 34 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A slight chance of showers after 2am. Mostly cloudy, with a low around 64. West wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 20%.
Juneteenth
Partly sunny, with a high near 80.
Friday Night
Mostly clear, with a low around 60.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 59.
Sunday
Sunny, with a high near 82.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 40%.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 50%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 40%.
Tuesday
Mostly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Holly Springs PA
 40.13°N 77.19°W (Elev. 548 ft)
Last Update:
2:21 pm EDT Jun 16, 2026
Forecast Valid:
7pm EDT Jun 16, 2026-6pm EDT Jun 23, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation