South Fayette, PA Weather Forecast
Allegheny County, Pennsylvania
Live radar, warnings and storm tracking for South Fayette, 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 South Fayette
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
South Fayette, PA at a glance
South Fayette is home to about 18,442 people in Allegheny County, across 20 square miles. It ranks 104th by population of 970 places in Pennsylvania with a forecast here. The nearest neighbour with its own forecast is Collier, 3 miles away.
- County
- Allegheny County
- Population
- 18,442 2023 est.
- Land area
- 20 sq mi
- People per sq mi
- 908
- Forecast point
- 40.3706°N, 80.1786°W
How well can the network see South Fayette?
The nearest Doppler radar is KPBZ (Pittsburgh, PA), to the N. Its lowest scan passes about 590 ft above South Fayette. That is about as close as US radar coverage gets: low-level rotation and gust fronts over South Fayette show up clearly. South Fayette is closer to its radar than 94% of US cities.
The closest weather station is KPIT (Pittsburgh Intl). Representative on most days, though a thunderstorm can hit one and miss the other.
Forecasts near South Fayette
- Collier, PA3 mi
- Bridgeville, PA4 mi
- Cecil, PA4 mi
- North Fayette, PA4 mi
- Scott, PA5 mi
- Carnegie, PA6 mi
- Upper St. Clair, PA6 mi
- Robinson, PA6 mi
Elsewhere in Pennsylvania
PhiladelphiaPittsburghAllentownReadingErieUpper DarbyAll Pennsylvania forecasts →