Irwin, PA Weather Forecast
Westmoreland County, Pennsylvania
Live radar, warnings and storm tracking for Irwin, with free alerts the moment it counts.
The next few hours
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
Free alerts for Irwin
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Irwin, PA at a glance
Irwin is home to about 3,813 people in Westmoreland County, across 0.8 square miles. It ranks 702nd by population of 970 places in Pennsylvania with a forecast here. The nearest neighbour with its own forecast is North Huntingdon, 2 miles away.
- County
- Westmoreland County
- Population
- 3,813 2023 est.
- Land area
- 0.8 sq mi
- People per sq mi
- 4,556
- Forecast point
- 40.3251°N, 79.6998°W
How well can the network see Irwin?
The nearest Doppler radar is KPBZ (Pittsburgh, PA), to the WNW. Its lowest scan passes about 1,900 ft above Irwin. That is about as close as US radar coverage gets: low-level rotation and gust fronts over Irwin show up clearly. Irwin is closer to its radar than 69% of US cities.
The closest weather station is KAGC (Pittsburgh/Allegheny Cnty). Representative on most days, though a thunderstorm can hit one and miss the other.
Forecasts near Irwin
- North Huntingdon, PA2 mi
- Manor, PA2 mi
- Jeannette, PA5 mi
- Trafford, PA5 mi
- White Oak, PA5 mi
- Sewickley, PA5 mi
- North Versailles, PA7 mi
- Hempfield, PA7 mi
Elsewhere in Pennsylvania
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