Weather in Mertztown, PA
Updated 2026-08-11 13:45 local time · ZIP codes 19539
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
82°5% rain
87°3% rain87°3% rain89°2% rain87°2% rain84°3% rain79°4% rain
77°5% rain76°7% rain75°8% rain74°8% rain
69°77% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Weather insights for today
Rain chance reaches about 77% over the next 12 hours.
It feels like 85°F with winds near 5 mph.
79°F, 4% rain chance and 2 mph wind.
Visibility is around 10 mi; gusts may reach 14 mph.
Current temperature is 82°F, wind 5 mph, rain chance up to 77%.
UV index is 7. Sunscreen, shade and protective clothing are recommended.
Mertztown weather today
Overcast and 82°F in Mertztown, PA. Today's high is 89°F with a 7% rain chance. Winds are around 5 mph with gusts near 6 mph. Relative humidity is 62%, pressure is 29.91 inHg, and visibility is about 10 miles.
Tonight and tomorrow in Mertztown
Sunrise is at 06:09 AM and sunset is at 08:06 PM. Tomorrow's forecast calls for Sunny with a high near 84°F and a low near 66°F. The maximum rain chance is 67%.