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

Severe Thunderstorms and Heat Impact July 4th Weekend

A threat for severe thunderstorms will impact the July 4th weekend, bringing the potential for damaging wind gusts and localized flash flooding through Sunday. Hazardous heat continues into Sunday as well. Read More >

Hazardous Weather Conditions

Current conditions at

Pennridge Airport (KCKZ)

Lat: 40.39°NLon: 75.29°WElev: 568ft.

Overcast

70°F

21°C

Humidity 100%
Wind Speed E 6 mph
Barometer 29.99 in
Dewpoint 70°F (21°C)
Visibility 9.00 mi
Last update 6 Jul 4:35 am EDT
Extended Forecast for

Harleysville PA

Flood Watch July 6, 04:44am until July 6, 08:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch July 6, 04:44am until July 6, 08:00pm

    NOW until 8:00pm Mon

    Flood Watch

  • Overnight

    Low: 68 °F

    Heavy Rain

  • Monday

    Monday: Showers likely and possibly a thunderstorm before 9am, then a chance of showers between 9am and 11am, then showers likely and possibly a thunderstorm after 11am. Cloudy, with a high near 76. East wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 76 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, mainly after 3am. Cloudy, with a low around 62. Northeast wind around 10 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers before 11am, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 77. Northeast wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 61. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 61 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 30%.

    High: 86 °F

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

Overnight
A chance of showers and thunderstorms. Some of the storms could produce heavy rainfall. Cloudy, with a low around 68. East wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Showers likely and possibly a thunderstorm before 9am, then a chance of showers between 9am and 11am, then showers likely and possibly a thunderstorm after 11am. Cloudy, with a high near 76. East wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
A chance of showers and thunderstorms, mainly after 3am. Cloudy, with a low around 62. Northeast wind around 10 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers before 11am, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 77. Northeast wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 61. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 63.
Thursday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 40%.
Saturday Night
A chance of thunderstorms. Partly cloudy, with a low around 63. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 84.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harleysville PA
 40.29°N 75.38°W (Elev. 299 ft)
Last Update:
4:08 am EDT Jul 6, 2026
Forecast Valid:
4am EDT Jul 6, 2026-6pm EDT Jul 12, 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