Weather in Grand Valley, PA
Updated 2026-09-26 10:00 local time · ZIP codes 16420
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
54°17% rain58°14% rain61°12% rain
62°4% rain63°11% rain61°13% rain61°13% rain60°14% rain59°15% rain59°17% rain
57°20% rain54°24% 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 24%).
It feels like 48°F with winds near 10 mph.
62°F, 4% rain chance and 11 mph wind.
Visibility is around 6 mi; gusts may reach 24 mph.
Current temperature is 54°F, wind 10 mph, rain chance up to 24%.
UV index is 2.
Local weather characteristics in Grand Valley
Pennsylvania has four seasons and varied terrain. Western and northern areas are generally cooler and snowier, while southeastern areas are often milder.
Grand Valley is part of the Northeast weather region. The forecast point is near 41.72°N latitude and 79.54°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.
Grand Valley weather today
Overcast and 54°F in Grand Valley, PA. Today's high is 63°F with a 15% rain chance. Winds are around 10 mph with gusts near 24 mph. Relative humidity is 68%, pressure is 30.13 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Grand Valley
Sunrise is at 07:09 AM and sunset is at 07:09 PM. Tomorrow's forecast calls for Overcast with a high near 61°F and a low near 49°F. The maximum rain chance is 52%.