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Allegheny County Weather Warning NWS WEATHER ALERT FOR THE ALLEGHENY COUNTY, PA AREA - Issued: 426 AM EDT Tue Sep 1 2026 Allegheny County Weather Warning

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Allegheny County, PA Weather - Hour by Hour Forecast

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Allegheny County, PA Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Partly Cloudy. Temperature is 72°F22°C, dew point 70°F21°C, humidity 93%. Wind direction is SSW at 8 mph13 km/h with visibility of 8 mi13 km. Barometric pressure is 30.06 in1018 mb.
Overnight - Mostly cloudy and warm. Near steady temperature in the lower 70s. Southwest winds around 5 mph... Full Forecast
Today - Partly sunny in the morning, then becoming partly cloudy. A slight chance of showers and thunderstorms. Unseasonably warm. Humid w.. Full Forecast

Allegheny County Hourly Weather

24 Hour Forecast Scroll
Tue, Sep 01
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Allegheny County, PA Hourly Weather - Mostly Cloudy - 4:00 AM Allegheny County, PA Hourly Weather - Mostly Cloudy - 5:00 AM Allegheny County, PA Hourly Weather - Mostly Cloudy - 6:00 AM Allegheny County, PA Hourly Weather - Mostly Cloudy - 7:00 AM Allegheny County, PA Hourly Weather - Mostly Cloudy - 8:00 AM Allegheny County, PA Hourly Weather - Mostly Cloudy - 9:00 AM Allegheny County, PA Hourly Weather - Mostly Cloudy - 10:00 AM Allegheny County, PA Hourly Weather - Mostly Cloudy - 11:00 AM Allegheny County, PA Hourly Weather - Mostly Cloudy - 12:00 PM Allegheny County, PA Hourly Weather - Mostly Cloudy - 1:00 PM Allegheny County, PA Hourly Weather - Mostly Cloudy - 2:00 PM Allegheny County, PA Hourly Weather - Mostly Cloudy - 3:00 PM Allegheny County, PA Hourly Weather - Partly Cloudy - 4:00 PM Allegheny County, PA Hourly Weather - Partly Cloudy - 5:00 PM Allegheny County, PA Hourly Weather - Partly Cloudy - 6:00 PM Allegheny County, PA Hourly Weather - Partly Cloudy - 7:00 PM Allegheny County, PA Hourly Weather - Partly Cloudy - 8:00 PM Allegheny County, PA Hourly Weather - Partly Cloudy - 9:00 PM Allegheny County, PA Hourly Weather - Partly Cloudy - 10:00 PM Allegheny County, PA Hourly Weather - Partly Cloudy - 11:00 PM Allegheny County, PA Hourly Weather - Partly Cloudy - 12:00 AM Allegheny County, PA Hourly Weather - Mostly Cloudy - 1:00 AM Allegheny County, PA Hourly Weather - Mostly Cloudy - 2:00 AM Allegheny County, PA Hourly Weather - Mostly Cloudy - 3:00 AM
Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy
71°F22°C 70°F21°C 70°F21°C 71°F22°C 71°F22°C 74°F23°C 78°F26°C 81°F27°C 83°F28°C 86°F30°C 88°F31°C 88°F31°C 88°F31°C 88°F31°C 86°F30°C 85°F29°C 83°F28°C 81°F27°C 80°F27°C 78°F26°C 77°F25°C 76°F24°C 75°F24°C 74°F23°C
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15% 15% 15% 15% 15% 10% 10% 10% 10% 10% 10% 3% 3% 3% 3% 3% 3% 12% 12% 12% 12% 12% 12% 28%
69°F21°C 69°F21°C 69°F21°C 69°F21°C 69°F21°C 69°F21°C 70°F21°C 70°F21°C 70°F21°C 69°F21°C 69°F21°C 69°F21°C 69°F21°C 69°F21°C 69°F21°C 70°F21°C 70°F21°C 70°F21°C 71°F22°C 71°F22°C 71°F22°C 71°F22°C 71°F22°C 71°F22°C
93% 97% 97% 93% 93% 84% 77% 69% 65% 57% 54% 54% 54% 54% 57% 61% 65% 69% 74% 79% 82% 85% 87% 90%
SSE SSE SSE SW SW SW SW SSW SSW SSW SSW SSW SSW SSW SSW SW SW SW SW SW SW SW SSE SSE
6 mph 6 mph 6 mph 5 mph 5 mph 5 mph 9 mph 9 mph 9 mph 10 mph 10 mph 10 mph 10 mph 10 mph 10 mph 5 mph 5 mph 5 mph 5 mph 5 mph 5 mph 4 mph 4 mph 4 mph
10 mi16 km 10 mi16 km 10 mi16 km 6 mi10 km 6 mi10 km 6 mi10 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 6 mi10 km
Hour (EDT)
Weather
Clouds
Temperature
Precip. Type
POP
Dewpoint
Humidity
Wind Direction
Wind Speed
Visibility
POP = Probability of Precipitation. ** Indicates missing data/values from KAGC model statistics.

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Prob Precip % = Probability of Precipitation.

Allegheny County 36 Hour Forecast

POP = Probability of Precipitation. ** Indicates missing data/values from model statistics.

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