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

Flooding Risks from Tropical Moisture Across the Southeast and Southwest

Tropical moisture from Isaias and Rachel will impact portions of the Southeast and Southwest this weekend. Flash flooding, strong winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, strong winds and dry fuels are raising fire weather concerns across the central Great Basin and western High Plains. Across the northern Rockies, first winter storm of the season. Read More >

Current conditions at

Pittsburgh - Allegheny County Airport (KAGC)

Lat: 40.36°NLon: 79.92°WElev: 1237ft.

Fair

68°F

20°C

Humidity 42%
Wind Speed SE 8 mph
Barometer 30.29 in (1025.9 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 10 Oct 2:53 pm EDT
Extended Forecast for

Carnegie PA

  • This Afternoon

    This Afternoon: Cloudy, with a high near 72. Southeast wind around 11 mph.

    High: 72 °F

    Cloudy

  • Tonight

    Tonight: Showers, with thunderstorms also possible after 5am. Low around 58. East wind 10 to 13 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 58 °F

    Mostly Cloudy
    then Showers

  • Sunday

    Sunday: Showers and thunderstorms, mainly before 4pm. High near 68. East wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 68 °F

    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 60. Northeast wind around 6 mph becoming light and variable. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Chance
    Showers then
    Mostly Cloudy

  • Columbus Day

    Columbus Day: Mostly cloudy, with a high near 72. Northwest wind around 8 mph.

    High: 72 °F

    Mostly Cloudy

  • Monday Night

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

    Low: 59 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 73.

    High: 73 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Cloudy, with a high near 72. Southeast wind around 11 mph.
Tonight
Showers, with thunderstorms also possible after 5am. Low around 58. East wind 10 to 13 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers and thunderstorms, mainly before 4pm. High near 68. East wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
A chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 60. Northeast wind around 6 mph becoming light and variable. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Columbus Day
Mostly cloudy, with a high near 72. Northwest wind around 8 mph.
Monday Night
Partly cloudy, with a low around 59.
Tuesday
Mostly sunny, with a high near 80.
Tuesday Night
Partly cloudy, with a low around 62.
Wednesday
Partly sunny, with a high near 73.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.
Thursday
A chance of showers. Partly sunny, with a high near 69. Chance of precipitation is 30%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 50%.
Friday
A chance of showers. Mostly cloudy, with a high near 67. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Carnegie PA
 40.4°N 80.08°W (Elev. 899 ft)
Last Update:
2:21 pm EDT Oct 10, 2026
Forecast Valid:
3pm EDT Oct 10, 2026-6pm EDT Oct 16, 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