Weather in Irwin, PA
Updated 2026-09-26 10:00 local time · ZIP codes 15642
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
54°19% rain58°17% rain62°15% rain
64°11% rain66°13% rain67°12% rain67°13% rain66°14% rain67°17% rain62°20% rain
60°20% rain58°21% 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 21%).
It feels like 51°F with winds near 6 mph.
67°F, 12% rain chance and 10 mph wind.
Visibility is around 6 mi; gusts may reach 22 mph.
Current temperature is 54°F, wind 6 mph, rain chance up to 21%.
UV index is 2.
Local weather characteristics in Irwin
Pennsylvania has four seasons and varied terrain. Western and northern areas are generally cooler and snowier, while southeastern areas are often milder.
Irwin is part of the Northeast weather region. The forecast point is near 40.32°N latitude and 79.70°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.
Irwin weather today
Overcast and 54°F in Irwin, PA. Today's high is 67°F with a 16% rain chance. Winds are around 6 mph with gusts near 12 mph. Relative humidity is 72%, pressure is 30.12 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Irwin
Sunrise is at 07:10 AM and sunset is at 07:09 PM. Tomorrow's forecast calls for Overcast with a high near 65°F and a low near 48°F. The maximum rain chance is 16%.