7-Day Forecast 40.5°N 75.66°W (Text-Only)
NWS Forecast for: 2 Miles ENE Mertztown PA
Issued by: National Weather Service Philadelphia, PA
Last Update: 4:11 pm EDT Jun 20, 2024




Tonight: Mostly clear, with a low around 19. Southwest wind 5 to 10 km/h.

Friday: Sunny, with a high near 33. Southwest wind 5 to 10 km/h.

Friday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Some of the storms could produce heavy rainfall. Patchy fog after 2am. Otherwise, partly cloudy, with a low around 22. Calm wind. Chance of precipitation is 30%. New rainfall amounts of less than 1 mm, except higher amounts possible in thunderstorms.

Saturday: A chance of showers, with thunderstorms also possible after 2pm. Patchy fog before 11am. Otherwise, mostly sunny, with a high near 33. Heat index values as high as 38. Southwest wind 5 to 10 km/h. Chance of precipitation is 40%. New rainfall amounts of less than 1 mm, except higher amounts possible in thunderstorms.

Saturday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Partly cloudy, with a low around 23. Calm wind. Chance of precipitation is 30%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.

Sunday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 34. Chance of precipitation is 40%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.

Sunday Night: Showers likely and possibly a thunderstorm before 8pm, then showers and thunderstorms likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 22. Chance of precipitation is 60%.

Monday: A chance of showers and thunderstorms. Mostly sunny, with a high near 31. Chance of precipitation is 40%.

Monday Night: Mostly clear, with a low around 17.

Tuesday: Sunny, with a high near 31.

Tuesday Night: Partly cloudy, with a low around 20.

Wednesday: A chance of showers and thunderstorms. Mostly sunny, with a high near 34. Chance of precipitation is 30%.

Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 19. Chance of precipitation is 40%.

Thursday: Mostly sunny, with a high near 28.



2 Miles ENE Mertztown PA
 40.5°N 75.66°W (Elev. 499 m)

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