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

Hazardous Weather Conditions

Current conditions at

Pittsburgh - Allegheny County Airport (KAGC)

Lat: 40.36°NLon: 79.92°WElev: 1237ft.

Fair

40°F

4°C

Humidity 68%
Wind Speed N 9 mph
Barometer 30.10 in (1020.5 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 25 Dec 4:53 pm EST
Extended Forecast for

Mount Oliver PA

Winter Weather Advisory December 26, 08:00am until December 26, 03:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: Mostly cloudy, with a low around 29. North wind around 7 mph becoming east after midnight.

    Low: 29 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of freezing rain before 10am, then rain. High near 46. East wind 8 to 10 mph becoming south in the afternoon. Chance of precipitation is 100%. Little or no ice accumulation expected.

    High: 46 °F

    Chance
    Rain/Freezing
    Rain then
    Rain

  • Friday Night

    Friday Night: Rain likely before 1am. Cloudy, with a low around 36. Northwest wind 7 to 9 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Rain Likely

  • Saturday

    Saturday: Mostly cloudy, with a high near 42. Northwest wind around 6 mph becoming light and variable in the afternoon.

    High: 42 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 33. Calm wind becoming east around 5 mph after midnight.

    Low: 33 °F

    Mostly Cloudy

  • Sunday

    Sunday: Rain, mainly after 1pm. High near 57. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 57 °F

    Chance Rain
    then Rain

  • Sunday Night

    Sunday Night: Rain. Low around 39. Chance of precipitation is 100%.

    Low: 39 °F

    Rain

  • Monday

    Monday: Rain before 1pm, then a chance of rain and snow. High near 52. Breezy. Chance of precipitation is 80%.

    High: 52 °F

    Breezy. Rain
    then
    Rain/Snow

  • Monday Night

    Monday Night: A chance of snow. Cloudy, with a low around 21. Breezy. Chance of precipitation is 50%.

    Low: 21 °F

    Chance Snow
    and Breezy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 29. North wind around 7 mph becoming east after midnight.
Friday
A slight chance of freezing rain before 10am, then rain. High near 46. East wind 8 to 10 mph becoming south in the afternoon. Chance of precipitation is 100%. Little or no ice accumulation expected.
Friday Night
Rain likely before 1am. Cloudy, with a low around 36. Northwest wind 7 to 9 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly cloudy, with a high near 42. Northwest wind around 6 mph becoming light and variable in the afternoon.
Saturday Night
Mostly cloudy, with a low around 33. Calm wind becoming east around 5 mph after midnight.
Sunday
Rain, mainly after 1pm. High near 57. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain. Low around 39. Chance of precipitation is 100%.
Monday
Rain before 1pm, then a chance of rain and snow. High near 52. Breezy. Chance of precipitation is 80%.
Monday Night
A chance of snow. Cloudy, with a low around 21. Breezy. Chance of precipitation is 50%.
Tuesday
Mostly cloudy, with a high near 28. Breezy.
Tuesday Night
Mostly cloudy, with a low around 22.
Wednesday
Mostly cloudy, with a high near 32.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.
New Year's Day
Mostly cloudy, with a high near 30.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Oliver PA
 40.39°N 79.99°W (Elev. 1188 ft)
Last Update:
12:18 pm EST Dec 25, 2025
Forecast Valid:
5pm EST Dec 25, 2025-6pm EST Jan 1, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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