Weather in Herndon, PA
Updated 2026-09-26 11:00 local time · ZIP codes 17830
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
63°15% rain
64°17% rain65°21% rain61°17% rain
60°44% rain60°48% rain57°58% rain58°36% rain
56°31% rain
56°50% rain
57°20% rain57°25% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance reaches about 58% over the next 12 hours.
It feels like 55°F with winds near 15 mph.
64°F, 17% rain chance and 12 mph wind.
Visibility is around 6 mi; gusts may reach 29 mph.
Current temperature is 63°F, wind 15 mph, rain chance up to 58%.
UV index is 2.
Local weather characteristics in Herndon
Pennsylvania has four seasons and varied terrain. Western and northern areas are generally cooler and snowier, while southeastern areas are often milder.
Herndon is part of the Northeast weather region. The forecast point is near 40.71°N latitude and 76.84°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.
Herndon weather today
Overcast and 63°F in Herndon, PA. Today's high is 65°F with a 65% rain chance. Winds are around 15 mph with gusts near 27 mph. Relative humidity is 60%, pressure is 29.97 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Herndon
Sunrise is at 06:59 AM and sunset is at 06:58 PM. Tomorrow's forecast calls for Patchy rain nearby with a high near 58°F and a low near 53°F. The maximum rain chance is 86%.