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Hazardous Weather Conditions

Current conditions at

Pittsburgh - Allegheny County Airport (KAGC)

Lat: 40.36°NLon: 79.92°WElev: 1237ft.

Light Snow

12°F

-11°C

Humidity 77%
Wind Speed W 8 G 21 mph
Barometer 29.98 in (1017.8 mb)
Dewpoint 6°F (-14°C)
Visibility 1.75 mi
Wind Chill0°F (-18°C)
Last update 26 Jan 9:53 am EST
Extended Forecast for

Castle Shannon PA

Extreme Cold Warning January 26, 07:00pm until January 27, 11:00am
Click here for hazard details and duration
Extreme Cold Warning

  • Today

    Today: A chance of snow showers, mainly after noon. Mostly cloudy, with a high near 19. Wind chill values as low as -3. West wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. Total daytime snow accumulation of less than a half inch possible.

    High: 19 °F

    Chance Snow
    Showers

  • Tonight

    Tonight: A slight chance of snow showers before 8pm. Mostly cloudy, with a low around -3. Wind chill values as low as -21. Southwest wind 11 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: -3 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: A chance of snow showers before 3pm, then a chance of snow showers after 4pm. Mostly cloudy, with a high near 18. Wind chill values as low as -22. Southwest wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 18 °F

    Chance Snow
    Showers

  • Tuesday Night

    Tuesday Night: A chance of snow showers before 7pm. Mostly cloudy, with a low around 0. Wind chill values as low as -11. West wind 8 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 0 °F

    Chance Snow
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny and cold, with a high near 15. Southwest wind 7 to 11 mph.

    High: 15 °F

    Cold

  • Wednesday Night

    Wednesday Night: A chance of snow showers, mainly before 1am. Mostly cloudy, with a low around 3. Chance of precipitation is 30%.

    Low: 3 °F

    Chance Snow
    Showers

  • Thursday

    Thursday: Mostly cloudy and cold, with a high near 14.

    High: 14 °F

    Cold

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -8.

    Low: -8 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny and cold, with a high near 12.

    High: 12 °F

    Cold

Detailed Forecast

Today
A chance of snow showers, mainly after noon. Mostly cloudy, with a high near 19. Wind chill values as low as -3. West wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. Total daytime snow accumulation of less than a half inch possible.
Tonight
A slight chance of snow showers before 8pm. Mostly cloudy, with a low around -3. Wind chill values as low as -21. Southwest wind 11 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Tuesday
A chance of snow showers before 3pm, then a chance of snow showers after 4pm. Mostly cloudy, with a high near 18. Wind chill values as low as -22. Southwest wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Tuesday Night
A chance of snow showers before 7pm. Mostly cloudy, with a low around 0. Wind chill values as low as -11. West wind 8 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Wednesday
Partly sunny and cold, with a high near 15. Southwest wind 7 to 11 mph.
Wednesday Night
A chance of snow showers, mainly before 1am. Mostly cloudy, with a low around 3. Chance of precipitation is 30%.
Thursday
Mostly cloudy and cold, with a high near 14.
Thursday Night
Partly cloudy, with a low around -8.
Friday
Partly sunny and cold, with a high near 12.
Friday Night
Partly cloudy, with a low around -5.
Saturday
A chance of snow showers. Mostly cloudy, with a high near 16. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around -1.
Sunday
Partly sunny, with a high near 21.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Castle Shannon PA
 40.37°N 80.02°W (Elev. 1109 ft)
Last Update:
10:32 am EST Jan 26, 2026
Forecast Valid:
10am EST Jan 26, 2026-6pm EST Feb 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation