


NWS Forecast for: Allegheny County Issued by: National Weather Service Pittsburgh, PA Last Update: 1000 PM EDT Sun Sep 21 2025 | |
Rest Of Tonight: Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Warm with lows in the mid 60s. South winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 50 percent. Monday: Mostly cloudy in the morning, then becoming partly sunny. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Humid with highs in the lower 80s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 50 percent. Monday Night: Mostly cloudy. A chance of showers and thunderstorms in the evening, then showers likely with a slight chance of thunderstorms after midnight. Humid with lows in the lower 60s. South winds 5 to 10 mph. Chance of rain 70 percent. Tuesday: Showers likely with a slight chance of thunderstorms in the morning, then showers with a chance of thunderstorms in the afternoon. Humid with highs in the mid 70s. Southwest winds 5 to 10 mph. Chance of rain 90 percent. Tuesday Night: Showers with a chance of thunderstorms in the evening, then showers likely after midnight. Patchy fog after midnight. Humid with lows in the lower 60s. Southwest winds 5 to 10 mph. Chance of rain 90 percent. Wednesday: Considerable cloudiness with a chance of showers. Highs in the mid 70s. Chance of rain 50 percent. Wednesday Night: Considerable cloudiness with a chance of showers. Lows in the lower 60s. Chance of rain 50 percent. Thursday: Showers likely. A chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 60 percent. Thursday Night: A chance of thunderstorms in the evening. Showers likely. Lows in the lower 60s. Chance of rain 60 percent. Friday: Mostly cloudy with showers likely in the morning, then partly sunny with a chance of showers in the afternoon. Highs in the mid 70s. Chance of rain 60 percent. Friday Night: Mostly cloudy with a 50 percent chance of showers. Lows in the upper 50s. Saturday: Partly sunny with a 40 percent chance of showers. Highs in the mid 70s. Saturday Night: Partly cloudy. A chance of showers in the evening. Lows in the upper 50s. Chance of rain 40 percent. Sunday: Partly sunny in the morning, then partly cloudy with a chance of showers in the afternoon. Highs in the mid 70s. Chance of rain 30 percent. | |
Zone Forecast: Allegheny County | |
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