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

Severe Thunderstorms in Portions of the Mississippi Valley and Great Lakes

A few severe thunderstorms with large hail, are expected across parts of the middle and upper Mississippi River Valley tonight through early morning. Snow and a wintry mix overnight in the Upper Midwest into the Great Lakes can cause hazardous travel conditions. Fire weather concerns continue for a large portion of the central and southern High Plains and Four Corners region this evening. Read More >

Current conditions at

Quakertown Airport (KUKT)

Lat: 40.44°NLon: 75.38°WElev: 509ft.

Mostly Cloudy

61°F

16°C

Humidity 72%
Wind Speed S 6 mph
Barometer 30.04 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 31 Mar 4:15 am EDT
Extended Forecast for

Mertztown PA

  • Today

    Today: Partly sunny, with a high near 77. Southwest wind 5 to 15 mph, with gusts as high as 30 mph.

    High: 77 °F

    Partly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Southwest wind around 10 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Chance
    Showers

  • 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 75. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Chance
    Showers then
    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 49. Northeast wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 49 °F

    Showers

  • Thursday

    Thursday: A chance of showers. Cloudy, with a high near 52. East wind around 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 52 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers before 2am. Cloudy, with a low around 44. Chance of precipitation is 30%.

    Low: 44 °F

    Chance
    Showers

  • Friday

    Friday: Mostly cloudy, with a high near 69.

    High: 69 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A chance of showers between 8pm and 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.

    Low: 57 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers after 2pm. Mostly sunny, with a high near 77. Chance of precipitation is 30%.

    High: 77 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Partly sunny, with a high near 77. Southwest wind 5 to 15 mph, with gusts as high as 30 mph.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Southwest wind around 10 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
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 75. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 49. Northeast wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers. Cloudy, with a high near 52. East wind around 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A chance of showers before 2am. Cloudy, with a low around 44. Chance of precipitation is 30%.
Friday
Mostly cloudy, with a high near 69.
Friday Night
A chance of showers between 8pm and 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.
Saturday
A chance of showers after 2pm. Mostly sunny, with a high near 77. Chance of precipitation is 30%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 40%.
Sunday
A chance of showers. Partly sunny, with a high near 71. Chance of precipitation is 50%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 43. Chance of precipitation is 50%.
Monday
A chance of showers. Partly sunny, with a high near 52. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mertztown PA
 40.48°N 75.67°W (Elev. 896 ft)
Last Update:
4:11 am EDT Mar 31, 2026
Forecast Valid:
4am EDT Mar 31, 2026-6pm EDT Apr 6, 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