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

Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

Quakertown Airport (KUKT)

Lat: 40.44°NLon: 75.38°WElev: 509ft.

Fair

66°F

19°C

Humidity 60%
Wind Speed S 5 mph
Barometer 29.71 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 22 Mar 2:35 pm EDT
Extended Forecast for

Mertztown PA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 69. Southwest wind around 10 mph.

    High: 69 °F

    Partly Sunny

  • Tonight

    Tonight: Showers and thunderstorms. Some of the storms could produce heavy rainfall. Low around 42. North wind 5 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 42 °F

    Heavy Rain

  • Monday

    Monday: A chance of showers, mainly before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 46. Northwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 46 °F

    Chance
    Showers then
    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 30. North wind 10 to 15 mph.

    Low: 30 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 46. Northwest wind 5 to 10 mph becoming west in the afternoon.

    High: 46 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 54.

    High: 54 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 69. Southwest wind around 10 mph.
Tonight
Showers and thunderstorms. Some of the storms could produce heavy rainfall. Low around 42. North wind 5 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Monday
A chance of showers, mainly before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 46. Northwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Mostly clear, with a low around 30. North wind 10 to 15 mph.
Tuesday
Sunny, with a high near 46. Northwest wind 5 to 10 mph becoming west in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Partly sunny, with a high near 54.
Wednesday Night
Mostly cloudy, with a low around 40.
Thursday
Partly sunny, with a high near 60.
Thursday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 45. Chance of precipitation is 70%.
Friday
Rain likely. Partly sunny, with a high near 53. Chance of precipitation is 60%.
Friday Night
Partly cloudy, with a low around 26.
Saturday
Sunny, with a high near 42.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mertztown PA
 40.48°N 75.67°W (Elev. 896 ft)
Last Update:
2:14 pm EDT Mar 22, 2026
Forecast Valid:
2pm EDT Mar 22, 2026-6pm EDT Mar 28, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation