Pittsburgh, PA weather
Right now 45°, fog/mist · tonight 42°, sunny · seven days from the National Weather Service
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Right now · 45° · fog/mist · calm · 1° cooler than this time yesterday · at Pittsburgh - Allegheny, 3:35 AM
Today, in the Weather Service’s words
Clear, with a low around 42. Southeast wind around 1 mph.
Seven days
Winter in Pittsburgh
Pittsburgh averages 44 inches of snow a year, according to NOAA’s 1991-2020 climate normals - a regular snow place. Snow several times a winter, well-practised response. Closures happen but need a real storm.
That is why local snowfall thresholds differ so much from one town to the next: a district that plans for 44 inches a year is equipped differently from one that never sees any. Here, roughly 6 inches in a single storm is where a normal school day comes under threat.
Upper air over Pittsburgh
The nearest radiosonde launch is Pittsburgh, about 14 miles away. A weather balloon goes up twice a day and measures temperature, humidity and wind all the way through the atmosphere - which is what forecasters actually read to judge whether storms will fire, and how a surface forecast was arrived at.
Forecasters covering the Northeast
Sources: National Weather Service forecast and hourly grid for Pittsburgh (api.weather.gov), updated Wed, 2:51 AM UTC. Sunrise and sunset from NOAA’s solar position calculations. Snowfall normals from NOAA’s 1991-2020 US Climate Normals. County lines from the US Census Bureau.