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Wintry, Windy, and Cold in the West and North; Warming in the East

A deepening trough along the west will bring much below normal temperatures, and the potential for snow to sea-level in the Pacific Northwest, and low elevation snows throughout California, including into the Grapevine. Travel will be hazardous across the west due to snow and strong winds. These winds will also increase fire weather threats in the central and southern Plains. Warming in the east. Read More >

Current conditions at

Pittsburgh - Allegheny County Airport (KAGC)

Lat: 40.36°NLon: 79.92°WElev: 1237ft.

Light Snow Fog/Mist

32°F

0°C

Humidity 88%
Wind Speed SW 6 mph
Barometer 29.99 in (1017.3 mb)
Dewpoint 29°F (-2°C)
Visibility 1.75 mi
Wind Chill26°F (-3°C)
Last update 17 Feb 9:53 pm EST
Extended Forecast for

Upper St. Clair PA

  • Tonight

    Tonight: Snow, possibly mixed with drizzle and freezing drizzle, becoming all snow after 11pm.  Low around 30. West wind 5 to 8 mph.  Chance of precipitation is 90%. Little or no ice accumulation expected.  Total nighttime snow accumulation of 1 to 2 inches possible.

    Wintry Mix
    then Chance
    Snow

    Low: 30 °F

  • Sunday

    Sunday: Mostly sunny, with a high near 43. West wind around 7 mph becoming south in the afternoon.

    Mostly Sunny

    High: 43 °F

  • Sunday
    Night

    Sunday Night: A chance of showers, mainly after 4am.  Partly cloudy, with a low around 35. Southeast wind 5 to 8 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Partly Cloudy
    then Chance
    Showers

    Low: 35 °F

  • Washington's
    Birthday

    Washington's Birthday: Showers, mainly before 4pm.  High near 60. South wind 7 to 11 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Showers

    High: 60 °F

  • Monday
    Night

    Monday Night: A chance of showers, mainly before 7pm.  Mostly cloudy, with a low around 54. South wind 9 to 11 mph, with gusts as high as 21 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Chance
    Showers then
    Mostly Cloudy

    Low: 54 °F

  • Tuesday

    Tuesday: A slight chance of showers.  Mostly cloudy, with a high near 72. Chance of precipitation is 20%.

    Slight Chance
    Showers

    High: 72 °F

  • Tuesday
    Night

    Tuesday Night: A chance of showers after 11pm.  Mostly cloudy, with a low around 55. Chance of precipitation is 40%.

    Chance
    Showers

    Low: 55 °F

  • Wednesday

    Wednesday: Showers likely, mainly after 9am.  Mostly cloudy, with a high near 66. Chance of precipitation is 70%.

    Showers
    Likely

    High: 66 °F

  • Wednesday
    Night

    Wednesday Night: A chance of showers.  Cloudy, with a low around 39. Chance of precipitation is 50%.

    Chance
    Showers

    Low: 39 °F

Detailed Forecast

Tonight
Snow, possibly mixed with drizzle and freezing drizzle, becoming all snow after 11pm. Low around 30. West wind 5 to 8 mph. Chance of precipitation is 90%. Little or no ice accumulation expected. Total nighttime snow accumulation of 1 to 2 inches possible.
Sunday
Mostly sunny, with a high near 43. West wind around 7 mph becoming south in the afternoon.
Sunday Night
A chance of showers, mainly after 4am. Partly cloudy, with a low around 35. Southeast wind 5 to 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Washington's Birthday
Showers, mainly before 4pm. High near 60. South wind 7 to 11 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
A chance of showers, mainly before 7pm. Mostly cloudy, with a low around 54. South wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
A slight chance of showers. Mostly cloudy, with a high near 72. Chance of precipitation is 20%.
Tuesday Night
A chance of showers after 11pm. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Wednesday
Showers likely, mainly after 9am. Mostly cloudy, with a high near 66. Chance of precipitation is 70%.
Wednesday Night
A chance of showers. Cloudy, with a low around 39. Chance of precipitation is 50%.
Thursday
A chance of showers before 10am. Mostly cloudy, with a high near 49. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 36.
Friday
A chance of showers. Mostly cloudy, with a high near 54. Chance of precipitation is 50%.
Friday Night
Showers likely. Cloudy, with a low around 45. Chance of precipitation is 60%.
Saturday
Showers likely. Cloudy, with a high near 58. Chance of precipitation is 70%.
Click Map For Forecast
Point Forecast:
Upper St. Clair PA
 40.31°N 80.09°W (Elev. 1099 ft)
8:49 pm EST Feb 17, 2018
10pm EST Feb 17, 2018-6pm EST Feb 24, 2018
 
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Additional Resources

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