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Current conditions at

Pittsburgh - Allegheny County Airport (KAGC)

Lat: 40.36°NLon: 79.92°WElev: 1237ft.

Fair

40°F

4°C

Humidity 86%
Wind Speed Calm
Barometer 30.48 in (1033.0 mb)
Dewpoint 36°F (2°C)
Visibility 8.00 mi
Last update 19 Oct 8:53 am EDT
Extended Forecast for

Monessen PA

  • Today

    Today: Sunny, with a high near 65. Light northeast wind.

    High: 65 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, clear, with a low around 35. Calm wind.

    Low: 35 °F

    Clear then
    Patchy Fog

  • Tuesday

    Tuesday: Areas of fog before 10am. Patchy frost before 9am. Otherwise, mostly sunny, with a high near 65. Calm wind becoming north 5 to 7 mph in the afternoon.

    High: 65 °F

    Patchy Frost
    and Areas Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 3am. Otherwise, mostly clear, with a low around 35. Light northeast wind.

    Low: 35 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 9am. Patchy frost before 9am. Otherwise, sunny, with a high near 65. Calm wind becoming north around 5 mph in the afternoon.

    High: 65 °F

    Patchy Frost
    and Patchy
    Fog then
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 65. Light northeast wind.
Tonight
Patchy fog after 3am. Otherwise, clear, with a low around 35. Calm wind.
Tuesday
Areas of fog before 10am. Patchy frost before 9am. Otherwise, mostly sunny, with a high near 65. Calm wind becoming north 5 to 7 mph in the afternoon.
Tuesday Night
Patchy fog after 3am. Otherwise, mostly clear, with a low around 35. Light northeast wind.
Wednesday
Patchy fog before 9am. Patchy frost before 9am. Otherwise, sunny, with a high near 65. Calm wind becoming north around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 36.
Thursday
Sunny, with a high near 65.
Thursday Night
Mostly clear, with a low around 39.
Friday
Sunny, with a high near 64.
Friday Night
Clear, with a low around 37.
Saturday
Sunny, with a high near 65.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Monessen PA
 40.16°N 79.88°W (Elev. 801 ft)
Last Update:
9:21 am EDT Oct 19, 2026
Forecast Valid:
9am EDT Oct 19, 2026-6pm EDT Oct 25, 2026
 
Forecast Discussion
 
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