On July 7, 2015, NWS implemented changes to the icons depicted on all of its point-forecast pages. Changes include new icon images with increased clarity, 6-hour increments for rapidly changing weather and new color blocks to highlight forecast hazards.

A page depicting all of the new icon images can be accessed here: www.weather.gov/forecast-icons

Changes to the icons were based on analysis of 6,700 public comments collected in 2014. Also, many of these changes are based on the results of a research project led by the National Center for Atmospheric Research.

Users are encouraged to continue to provide comments regarding these changes via email at icons@noaa.gov. NWS will continue to analyze incoming feedback and refine the icons as necessary. Any substantial change to the icons will be facilitated through the NWS public comment/review process.

Marginal Risk of Severe Storms Northern Plains to Northern Great Lake States

Strong thunderstorms are also possible across the Ohio Valley and the Carolinas. Storms may contain damaging winds and heavy rain. Critical fire weather conditions persist ahead of a cold front moving into the Pacific Northwest. Behind the front, much colder air with high elevation snow will occur.
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Current conditions at

Pittsburgh, Allegheny County Airport (KAGC)

Lat: 40.35°NLon: 79.92°WElev: 1253ft.

Fair with Haze

71°F

22°C

Humidity 73%
Wind Speed E 5 mph
Barometer 30.12 in (1019.5 mb)
Dewpoint 62°F (17°C)
Visibility 6.00 mi
Last update 4 Sep 10:53 pm EDT
Extended Forecast for

Upper St. Clair PA

  • Tonight

    Tonight: Partly cloudy, with a low around 66. Calm wind.

    Partly Cloudy

    Low: 66 °F

  • Saturday

    Saturday: A slight chance of showers and thunderstorms after 2pm.  Areas of fog before 9am.  Otherwise, partly sunny, with a high near 87. Southeast wind 3 to 7 mph.  Chance of precipitation is 20%.

    Areas Fog
    then Slight
    Chance
    T-storms

    High: 87 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 63. Southeast wind 3 to 5 mph.

    Partly Cloudy

    Low: 63 °F

  • Sunday

    Sunday: Mostly sunny, with a high near 86. Calm wind becoming west around 6 mph.

    Mostly Sunny

    High: 86 °F

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 63. Light south wind.

    Mostly Clear

    Low: 63 °F

  • Labor
    Day

    Labor Day: Mostly sunny, with a high near 88.

    Mostly Sunny

    High: 88 °F

  • Monday
    Night

    Monday Night: Partly cloudy, with a low around 65.

    Partly Cloudy

    Low: 65 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 88.

    Mostly Sunny

    High: 88 °F

  • Tuesday
    Night

    Tuesday Night: Mostly cloudy, with a low around 65.

    Mostly Cloudy

    Low: 65 °F

Detailed Forecast

Tonight
Partly cloudy, with a low around 66. Calm wind.
Saturday
A slight chance of showers and thunderstorms after 2pm. Areas of fog before 9am. Otherwise, partly sunny, with a high near 87. Southeast wind 3 to 7 mph. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 63. Southeast wind 3 to 5 mph.
Sunday
Mostly sunny, with a high near 86. Calm wind becoming west around 6 mph.
Sunday Night
Mostly clear, with a low around 63. Light south wind.
Labor Day
Mostly sunny, with a high near 88.
Monday Night
Partly cloudy, with a low around 65.
Tuesday
Mostly sunny, with a high near 88.
Tuesday Night
Mostly cloudy, with a low around 65.
Wednesday
A chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 84. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
Thursday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 76. Chance of precipitation is 40%.
Thursday Night
Partly cloudy, with a low around 56.
Friday
Mostly sunny, with a high near 76.
  Click Map For Forecast
Point Forecast:
Upper St. Clair PA
 40.31°N 80.09°W (Elev. 1099 ft)
9:19 pm EDT Sep 4, 2015
11pm EDT Sep 4, 2015-6pm EDT Sep 11, 2015
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database