National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across much of northeast Texas into the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Saturday could bring areas of flooding across parts of the central Plains into the upper Midwest/Great Lakes, and Four Corners states. Read More >

Hazardous Weather Conditions

Current conditions at

Pittsburgh - Allegheny County Airport (KAGC)

Lat: 40.36°NLon: 79.92°WElev: 1237ft.

Fair

77°F

25°C

Humidity 85%
Wind Speed W 6 mph
Barometer 30.16 in (1021.0 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 17 Sep 7:53 pm EDT
Extended Forecast for

Pittsburgh PA

  • Tonight

    Tonight: A chance of showers before 11pm, then a slight chance of showers after midnight. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 68. Northwest wind 3 to 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 68 °F

    Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: Patchy fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 79. Northeast wind 3 to 7 mph.

    High: 79 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 59. Northeast wind around 6 mph.

    Low: 59 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 79. Southeast wind around 6 mph.

    High: 79 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of showers, then showers and possibly a thunderstorm after 2am. Low around 66. East wind around 6 mph becoming south after midnight. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Chance
    Showers then
    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 78. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 78 °F

    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Cloudy, with a low around 60. Chance of precipitation is 50%.

    Low: 60 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: A chance of showers after 2pm. Mostly cloudy, with a high near 71. Chance of precipitation is 30%.

    High: 71 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday Night

    Monday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.

    Low: 60 °F

    Showers
    Likely

Detailed Forecast

Tonight
A chance of showers before 11pm, then a slight chance of showers after midnight. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 68. Northwest wind 3 to 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Patchy fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 79. Northeast wind 3 to 7 mph.
Friday Night
Partly cloudy, with a low around 59. Northeast wind around 6 mph.
Saturday
Partly sunny, with a high near 79. Southeast wind around 6 mph.
Saturday Night
A chance of showers, then showers and possibly a thunderstorm after 2am. Low around 66. East wind around 6 mph becoming south after midnight. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers and possibly a thunderstorm. High near 78. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
A chance of showers and thunderstorms. Cloudy, with a low around 60. Chance of precipitation is 50%.
Monday
A chance of showers after 2pm. Mostly cloudy, with a high near 71. Chance of precipitation is 30%.
Monday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Tuesday
Showers likely. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 68. Chance of precipitation is 40%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Thursday
A chance of showers. Partly sunny, with a high near 71. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Pittsburgh PA
 40.43°N 79.98°W (Elev. 814 ft)
Last Update:
7:17 pm EDT Sep 17, 2026
Forecast Valid:
8pm EDT Sep 17, 2026-6pm EDT Sep 24, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation