Weather in Mercer, PA
Updated 2026-09-26 10:00 local time · ZIP codes 16137
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
55°18% rain58°15% rain62°13% rain64°12% rain
65°6% rain
66°2% rain65°12% rain61°15% rain59°17% rain60°20% rain
56°24% rain55°25% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 25%).
It feels like 49°F with winds near 11 mph.
66°F, 2% rain chance and 12 mph wind.
Visibility is around 6 mi; gusts may reach 21 mph.
Current temperature is 55°F, wind 11 mph, rain chance up to 25%.
UV index is 2.
Local weather characteristics in Mercer
Pennsylvania has four seasons and varied terrain. Western and northern areas are generally cooler and snowier, while southeastern areas are often milder.
Mercer is part of the Northeast weather region. The forecast point is near 41.23°N latitude and 80.24°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.
Mercer weather today
Overcast and 55°F in Mercer, PA. Today's high is 66°F with a 14% rain chance. Winds are around 11 mph with gusts near 20 mph. Relative humidity is 69%, pressure is 30.14 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Mercer
Sunrise is at 07:12 AM and sunset is at 07:11 PM. Tomorrow's forecast calls for Overcast with a high near 65°F and a low near 51°F. The maximum rain chance is 13%.