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Severe Thunderstorms and Heavy Rainfall; Typhoon Watch in Guam and CNMI

Heavy to excessive rainfall will continue through tonight from the Texas Big Bend region into southern Oklahoma. Scattered damaging wind gusts and a few tornadoes may accompany a line of severe thunderstorms that is expected across the Mid-Atlantic into New England Friday. A Typhoon Watch continues for Guam and CNMI as Tropical Storm Champi will strengthen and approach the islands this weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Pittsburgh - Allegheny County Airport (KAGC)

Lat: 40.36°NLon: 79.92°WElev: 1237ft.

Fog/Mist

62°F

17°C

Humidity 96%
Wind Speed SE 5 mph
Barometer 30.00 in (1016.1 mb)
Dewpoint 61°F (16°C)
Visibility 5.00 mi
Last update 15 Oct 8:53 pm EDT
Extended Forecast for

Monongahela PA

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly between 1am and 5am, then a slight chance of thunderstorms after 5am. Cloudy, then gradually becoming partly cloudy, with a low around 64. South wind 6 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Showers, mainly before 5pm. Temperature rising to near 74 by 11am, then falling to around 60 during the remainder of the day. Breezy, with a southwest wind 16 to 21 mph becoming west in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 74 °F⇓

    Breezy.
    Chance
    Showers then
    Showers

  • Friday Night

    Friday Night: Showers, mainly before midnight. Low around 38. West wind around 14 mph becoming north after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Showers then
    Chance
    Showers

  • Saturday

    Saturday: Mostly cloudy through mid morning, then gradual clearing, with a high near 51. North wind 14 to 16 mph.

    High: 51 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Patchy frost after midnight. Otherwise, clear, with a low around 32. North wind around 5 mph becoming calm in the evening.

    Low: 32 °F

    Clear then
    Patchy Frost

  • Sunday

    Sunday: Widespread frost before 9am. Otherwise, sunny, with a high near 60.

    High: 60 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Patchy frost after 5am. Otherwise, clear, with a low around 35.

    Low: 35 °F

    Clear then
    Patchy Frost

  • Monday

    Monday: Patchy frost before 9am. Otherwise, sunny, with a high near 65.

    High: 65 °F

    Patchy Frost
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers and thunderstorms, mainly between 1am and 5am, then a slight chance of thunderstorms after 5am. Cloudy, then gradually becoming partly cloudy, with a low around 64. South wind 6 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Showers, mainly before 5pm. Temperature rising to near 74 by 11am, then falling to around 60 during the remainder of the day. Breezy, with a southwest wind 16 to 21 mph becoming west in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Showers, mainly before midnight. Low around 38. West wind around 14 mph becoming north after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly cloudy through mid morning, then gradual clearing, with a high near 51. North wind 14 to 16 mph.
Saturday Night
Patchy frost after midnight. Otherwise, clear, with a low around 32. North wind around 5 mph becoming calm in the evening.
Sunday
Widespread frost before 9am. Otherwise, sunny, with a high near 60.
Sunday Night
Patchy frost after 5am. Otherwise, clear, with a low around 35.
Monday
Patchy frost before 9am. Otherwise, sunny, with a high near 65.
Monday Night
Mostly clear, with a low around 37.
Tuesday
Mostly sunny, with a high near 67.
Tuesday Night
Mostly clear, with a low around 39.
Wednesday
Sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 39.
Thursday
Sunny, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Monongahela PA
 40.19°N 79.93°W (Elev. 863 ft)
Last Update:
7:03 pm EDT Oct 15, 2026
Forecast Valid:
9pm EDT Oct 15, 2026-6pm EDT Oct 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation