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Hazardous Weather Conditions

Current conditions at

Pittsburgh - Allegheny County Airport (KAGC)

Lat: 40.36°NLon: 79.92°WElev: 1237ft.

Light Rain Fog/Mist

58°F

14°C

Humidity 93%
Wind Speed NW 12 G 23 mph
Barometer 29.86 in (1011.3 mb)
Dewpoint 56°F (13°C)
Visibility 5.00 mi
Last update 16 Oct 2:53 pm EDT
Extended Forecast for

Monessen PA

Freeze Watch October 18, 01:00am until October 18, 09:00am
Click here for hazard details and duration
Freeze Watch

  • This Afternoon

    This Afternoon: Showers likely, mainly before 4pm. Cloudy, with a high near 76. Northwest wind around 11 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 76 °F

    Showers
    Likely

  • Tonight

    Tonight: A chance of showers, mainly before midnight. Mostly cloudy, with a low around 40. West wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Chance
    Showers then
    Slight Chance
    Showers

  • Saturday

    Saturday: Mostly cloudy, then gradual clearing during the afternoon, with a high near 52. North wind 11 to 15 mph.

    High: 52 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 4am. Otherwise, clear, with a low around 30. North wind around 5 mph becoming calm in the evening.

    Low: 30 °F

    Clear then
    Frost

  • Sunday

    Sunday: Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 59. Calm wind becoming east around 5 mph in the afternoon.

    High: 59 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Patchy frost after 4am. Otherwise, clear, with a low around 34.

    Low: 34 °F

    Clear then
    Patchy Frost

  • Monday

    Monday: Areas of frost before 9am. Otherwise, sunny, with a high near 63.

    High: 63 °F

    Areas Frost
    then Sunny

  • Monday Night

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

    Low: 37 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

Detailed Forecast

This Afternoon
Showers likely, mainly before 4pm. Cloudy, with a high near 76. Northwest wind around 11 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A chance of showers, mainly before midnight. Mostly cloudy, with a low around 40. West wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly cloudy, then gradual clearing during the afternoon, with a high near 52. North wind 11 to 15 mph.
Saturday Night
Widespread frost, mainly after 4am. Otherwise, clear, with a low around 30. North wind around 5 mph becoming calm in the evening.
Sunday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 59. Calm wind becoming east around 5 mph in the afternoon.
Sunday Night
Patchy frost after 4am. Otherwise, clear, with a low around 34.
Monday
Areas of frost before 9am. Otherwise, sunny, with a high near 63.
Monday Night
Mostly clear, with a low around 37.
Tuesday
Sunny, with a high near 67.
Tuesday Night
Mostly clear, with a low around 40.
Wednesday
Sunny, with a high near 67.
Wednesday Night
Mostly clear, with a low around 42.
Thursday
Sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Monessen PA
 40.14°N 79.88°W (Elev. 1086 ft)
Last Update:
2:21 pm EDT Oct 16, 2026
Forecast Valid:
3pm EDT Oct 16, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation