Heavy Rainfall and Flooding in the Southwest and Along the East Coast

A multi-day heavy rainfall event is set to begin across New Mexico into west Texas Tuesday through Wednesday. Flash flooding and debris flows in the vicinity of burn scars will also be possible. A strong coastal low will develop offshore of the Mid-Atlantic coast midweek, bringing heavy rainfall, strong winds and coastal flooding to much of the East Coast through Friday. Read More >

Current conditions at

Pittsburgh - Allegheny County Airport (KAGC)

Lat: 40.36°NLon: 79.92°WElev: 1237ft.

Light Rain Fog/Mist

56°F

13°C

Humidity 97%
Wind Speed Vrbl 6 mph
Barometer 30.07 in (1018.7 mb)
Dewpoint 55°F (13°C)
Visibility 6.00 mi
Last update 21 Sep 10:53 pm EDT
Extended Forecast for

Penn Hills PA

Flood Watch September 21, 11:37pm until September 23, 08:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch September 21, 11:37pm until September 23, 08:00am

    NOW until 8:00am Wed

    Flood Watch

  • Tonight

    Low: 56 °F

    Showers

  • Tuesday

    Tuesday: Showers.  High near 63. East wind 13 to 16 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 63 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers, mainly before 3am.  Low around 52. East wind 14 to 16 mph, with gusts as high as 29 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 52 °F

    Showers

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 2pm.  Mostly cloudy, with a high near 62. East wind around 15 mph.  Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 62 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers before 2am.  Mostly cloudy, with a low around 50. East wind 9 to 13 mph, with gusts as high as 23 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 50 °F

    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

Detailed Forecast

Tonight
Showers, mainly before 5am. Low around 56. East wind around 14 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Showers. High near 63. East wind 13 to 16 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Showers, mainly before 3am. Low around 52. East wind 14 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 62. East wind around 15 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers before 2am. Mostly cloudy, with a low around 50. East wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Mostly sunny, with a high near 65.
Thursday Night
Mostly clear, with a low around 45.
Friday
Sunny, with a high near 68.
Friday Night
Mostly clear, with a low around 46.
Saturday
Sunny, with a high near 68.
Saturday Night
Partly cloudy, with a low around 48.
Sunday
Mostly sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 50.
Monday
Mostly sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
Penn Hills PA
 40.49°N 79.83°W (Elev. 1099 ft)
7:36 pm EDT Sep 21, 2026
11pm EDT Sep 21, 2026-6pm EDT Sep 28, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database