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

Flash Flooding and Severe Thunderstorms Tuesday, July 28th - Wednesday, July 29th

Scattered to numerous thunderstorms are likely across the region Tuesday, July 28th through Wednesday, July 29th which will bring a risk of flash flooding and severe thunderstorms across the entire region. View this briefing for the details regarding these hazards. Read More >

Hazardous Weather Conditions

Current conditions at

Allentown, Lehigh Valley International Airport (KABE)

Lat: 40.65°NLon: 75.45°WElev: 384ft.

Fair

65°F

18°C

Humidity 93%
Wind Speed Calm
Barometer 29.75 in (1007.2 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 28 Jul 2:51 am EDT
Extended Forecast for

Fountain Hill PA

Flood Watch July 28, 08:00am until July 29, 08:00pm
Click here for hazard details and duration
Flood Watch

  • Overnight

    Overnight: Partly cloudy, with a low around 66. Calm wind.

    Low: 66 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers, then showers and possibly a thunderstorm after 11am. Some of the storms could produce heavy rainfall. High near 78. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 78 °F

    Showers
    Likely then
    Heavy Rain

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms before 11pm, then showers likely. Some of the storms could produce heavy rainfall. Low around 65. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. New precipitation amounts between three quarters and one inch possible.

    Low: 65 °F

    Heavy Rain

  • Wednesday

    Wednesday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 78. West wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Chance
    Showers then
    Showers

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms before 11pm, then a chance of showers. Low around 64. Northwest wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Showers then
    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 78. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 63. Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 66. Calm wind.
Tuesday
A chance of showers, then showers and possibly a thunderstorm after 11am. Some of the storms could produce heavy rainfall. High near 78. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Tuesday Night
Showers and thunderstorms before 11pm, then showers likely. Some of the storms could produce heavy rainfall. Low around 65. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. New precipitation amounts between three quarters and one inch possible.
Wednesday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 78. West wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and thunderstorms before 11pm, then a chance of showers. Low around 64. Northwest wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 78. 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 chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 63. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 82.
Friday Night
Partly cloudy, with a low around 64.
Saturday
Mostly sunny, with a high near 84.
Saturday Night
Mostly cloudy, with a low around 67.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 40%.
Monday
A chance of showers. Partly sunny, with a high near 82. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fountain Hill PA
 40.6°N 75.38°W (Elev. 600 ft)
Last Update:
4:08 pm EDT Jul 27, 2026
Forecast Valid:
3am EDT Jul 28, 2026-6pm EDT Aug 3, 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