Castle Shannon, PA Weather Forecast
Allegheny County, Pennsylvania
Live radar, warnings and storm tracking for Castle Shannon, 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 Castle Shannon
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Castle Shannon, PA at a glance
Castle Shannon is home to about 8,101 people in Allegheny County, across 1.6 square miles. It ranks 328th by population of 970 places in Pennsylvania with a forecast here. The nearest neighbour with its own forecast is Whitehall, 2 miles away.
- County
- Allegheny County
- Population
- 8,101 2023 est.
- Land area
- 1.6 sq mi
- People per sq mi
- 5,069
- Forecast point
- 40.3664°N, 80.0195°W
How well can the network see Castle Shannon?
The nearest Doppler radar is KPBZ (Pittsburgh, PA), to the NW. Its lowest scan passes about 830 ft above Castle Shannon. That is about as close as US radar coverage gets: low-level rotation and gust fronts over Castle Shannon show up clearly. Castle Shannon is closer to its radar than 90% 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 Castle Shannon
- Whitehall, PA2 mi
- Mount Lebanon, PA2 mi
- Dormont, PA2 mi
- Brentwood, PA2 mi
- Bethel Park, PA3 mi
- Scott, PA3 mi
- Mount Oliver, PA4 mi
- Green Tree, PA4 mi
Elsewhere in Pennsylvania
PhiladelphiaPittsburghAllentownReadingErieUpper DarbyAll Pennsylvania forecasts →

