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.

Overcast

45°F

7°C

Humidity 93%
Wind Speed Calm
Barometer 29.92 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 22 Mar 4:55 am EDT
Extended Forecast for

Mertztown PA

  • Today

    Today: A chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 69. Southwest wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts between a quarter and half of an inch possible.

    High: 69 °F

    Partly Sunny
    then Chance
    T-storms

  • Tonight

    Tonight: Rain and thunderstorms before 4am, then rain likely. Some of the storms could produce heavy rainfall. Low around 40. West wind 5 to 10 mph becoming north in the evening. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 40 °F

    Heavy Rain

  • Monday

    Monday: A chance of rain, mainly before 7am. Cloudy through mid morning, then gradual clearing, with a high near 45. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 45 °F

    Chance Rain
    and Breezy

  • Monday Night

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

    Low: 30 °F

    Mostly Clear

  • Tuesday

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

    High: 46 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 53.

    High: 53 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A chance of rain after 2am. Mostly cloudy, with a low around 40. Chance of precipitation is 30%.

    Low: 40 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: A chance of rain. Mostly cloudy, with a high near 58. Chance of precipitation is 30%.

    High: 58 °F

    Chance Rain

Detailed Forecast

Today
A chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 69. Southwest wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Rain and thunderstorms before 4am, then rain likely. Some of the storms could produce heavy rainfall. Low around 40. West wind 5 to 10 mph becoming north in the evening. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Monday
A chance of rain, mainly before 7am. Cloudy through mid morning, then gradual clearing, with a high near 45. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Mostly clear, with a low around 30. Northwest wind 10 to 15 mph.
Tuesday
Sunny, with a high near 46. Northwest wind around 5 mph becoming west in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
Mostly cloudy, with a high near 53.
Wednesday Night
A chance of rain after 2am. Mostly cloudy, with a low around 40. Chance of precipitation is 30%.
Thursday
A chance of rain. Mostly cloudy, with a high near 58. Chance of precipitation is 30%.
Thursday Night
Rain likely. Mostly cloudy, with a low around 43. Chance of precipitation is 70%.
Friday
Partly sunny, with a high near 48.
Friday Night
Partly cloudy, with a low around 26.
Saturday
Sunny, with a high near 43.
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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:
4:09 am EDT Mar 22, 2026
Forecast Valid:
5am EDT Mar 22, 2026-6pm EDT Mar 28, 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