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

Severe Thunderstorms and Excessive Rainfall in the Central U.S.; Heat Building in the Western U.S.

A cold front pressing east across the central U.S. will be the focus for areas of strong to severe thunderstorms and excessive rainfall through this weekend. Strong to severe thunderstorms my bring damaging winds, hail, and a few tornadoes while excessive rainfall may lead to areas of flooding. Heat will build across the western U.S. with heat-related watches, warnings, and advisories issued. Read More >

Current conditions at

Quakertown Airport (KUKT)

Lat: 40.44°NLon: 75.38°WElev: 509ft.

Overcast

75°F

24°C

Humidity 100%
Wind Speed SE 6 mph
Barometer 30.09 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Last update 13 Jul 12:55 am EDT
Extended Forecast for

2 Miles SSE Mertztown PA

  • Overnight

    Overnight: Mostly cloudy, with a low around 69. Southeast wind around 5 mph.

    Low: 69 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Patchy fog between 7am and 8am. Otherwise, mostly cloudy, with a high near 83. East wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Slight Chance
    T-storms and
    Patchy Fog
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely before 5am, then a chance of showers. Mostly cloudy, with a low around 69. South wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Showers
    Likely then
    Chance
    T-storms

  • Monday

    Monday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 82. Southeast wind around 5 mph becoming southwest in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Chance
    Showers and
    Patchy Fog
    then Showers
    Likely

  • Monday Night

    Monday Night: Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 68. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers after 2pm. Mostly sunny, with a high near 87. Chance of precipitation is 20%.

    High: 87 °F

    Sunny then
    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 86. Chance of precipitation is 40%.

    High: 86 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Mostly cloudy, with a low around 69. Southeast wind around 5 mph.
Sunday
A slight chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Patchy fog between 7am and 8am. Otherwise, mostly cloudy, with a high near 83. East wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers and thunderstorms likely before 5am, then a chance of showers. Mostly cloudy, with a low around 69. South wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 82. Southeast wind around 5 mph becoming southwest in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 68. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A slight chance of showers after 2pm. Mostly sunny, with a high near 87. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 69.
Wednesday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 86. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 30%.
Thursday
Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 60%.
Thursday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 86. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Saturday
A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Mertztown PA
 40.46°N 75.67°W (Elev. 1017 ft)
Last Update:
1:08 am EDT Jul 13, 2025
Forecast Valid:
1am EDT Jul 13, 2025-6pm EDT Jul 19, 2025
 
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