Heavy to Excessive Rains in The Four Corners Region and Midwest; Heat Persists in the South-Central U.S.

Repeated rounds of showers and thunderstorms could bring a flash flooding threat across the Four Corners region and from the mid-Mississippi Valley into the lower Great Lakes. Hot temperatures and high humidity will continue to challenge daily records from the Southern Plains to the lower Mississippi Valley. Read More >

Hazardous Weather Conditions

Current conditions at

Pittsburgh - Allegheny County Airport (KAGC)

Lat: 40.36°NLon: 79.92°WElev: 1237ft.

A Few Clouds

83°F

28°C

Humidity 65%
Wind Speed SW 6 mph
Barometer 30.32 in (1026.3 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 16 Sep 1:53 pm EDT
Extended Forecast for

2 Miles SSW Mount Lebanon PA

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms after 3pm.  Partly sunny, with a high near 87. Calm wind becoming west around 6 mph.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms.  Patchy fog after 11pm.  Otherwise, mostly cloudy, with a low around 69. Calm wind.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Chance
    T-storms and
    Patchy Fog

  • Thursday

    Thursday: A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 1pm, then a chance of showers and thunderstorms after 1pm.  Mostly cloudy, with a high near 84. Southwest wind 5 to 9 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, mainly between 1am and 2am.  Mostly cloudy, with a low around 66. Northwest wind around 6 mph.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 79. North wind 6 to 8 mph.

    High: 79 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am.  Low around 66. Chance of precipitation is 80%.

    Low: 66 °F

    Chance
    T-storms then
    Showers

  • Sunday

    Sunday: Showers, with thunderstorms also possible after 2pm.  High near 79. Chance of precipitation is 80%.

    High: 79 °F

    Showers

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 87. Calm wind becoming west around 6 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 69. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 84. Southwest wind 5 to 9 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms, mainly between 1am and 2am. Mostly cloudy, with a low around 66. Northwest wind around 6 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Partly sunny, with a high near 79. North wind 6 to 8 mph.
Friday Night
Partly cloudy, with a low around 59.
Saturday
Mostly sunny, with a high near 80.
Saturday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 66. Chance of precipitation is 80%.
Sunday
Showers, with thunderstorms also possible after 2pm. High near 79. Chance of precipitation is 80%.
Sunday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Cloudy, with a low around 63. Chance of precipitation is 60%.
Monday
A chance of showers. Cloudy, with a high near 75. Chance of precipitation is 40%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 77. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Mount Lebanon PA
 40.35°N 80.05°W (Elev. 1188 ft)
2:21 pm EDT Sep 16, 2026
2pm EDT Sep 16, 2026-6pm EDT Sep 22, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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