Weather Forecast for
Allegheny County, PA


This Afternoon: A chance of showers and thunderstorms, mainly after 4pm. Mostly cloudy, with a high near 86. Calm wind becoming south 5 to 7 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight: Showers and thunderstorms before midnight, then a chance of showers. Patchy fog after 8pm. Low around 68. South wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

Sunday: Cloudy, then gradual clearing during the afternoon, with a high near 84. West wind 3 to 8 mph.

Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. West wind 5 to 9 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Monday: Sunny, with a high near 74. North wind 7 to 9 mph.

Monday Night: Partly cloudy, with a low around 53.

Tuesday: Sunny, with a high near 82.

Tuesday Night: Mostly clear, with a low around 62.

Wednesday: Mostly sunny, with a high near 87.

Wednesday Night: Partly cloudy, with a low around 67.

Thursday: A chance of showers. Partly sunny, with a high near 87. Chance of precipitation is 50%.

Thursday Night: A chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.

Friday: A chance of showers. Partly sunny, with a high near 81. Chance of precipitation is 40%.

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