Upper St Clair, PA Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

Cloudy 29°F
Feels Like 24°F  
Humidity 74% Dew Point 22°F Wind SW 5 MPH Gusts 7 Barometer 30.22 in.
Solar Rad 103 w/m2
Report from a personal weather station 1.3 mi. SSE of central Upper St Clair
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Point Forecast at a Glance

FriNov 28
Fri Nov 28: Snow Showers, High 34F, Low 20F
20%
34
20
SatNov 29
Sat Nov 29: Increasing Clouds, High 35F, Low 29F
35
29
SunNov 30
Sun Nov 30: Snow, High 42F, Low 25F
80%
42
25
MonDec 1
Mon Dec 1: Mostly Cloudy, High 33F, Low 25F
33
25
TueDec 2
Tue Dec 2: Snow, High 34F, Low 20F
50%
34
20
WedDec 3
Wed Dec 3: Partly Sunny, High 34F, Low 23F
34
23
ThuDec 4
Thu Dec 4: Mostly Cloudy, High 35F
35
 

7-Day Temperature Trend

Week Ahead Summary

High temperatures remain relatively stable through the week, ranging from 33°F to 42°F. Unsettled weather expected with wintry mix likely on at least 5 days.

Climate Context

This week's forecast shows temperatures running 11°F below the historical average for November-December. Normal highs for this period are around 46°F with lows around 29°F.

This Date in Weather History

1960 - A severe storm produced waves 20 to 40 feet high on Lake Superior. Duluth, MN, was buried under a foot of snow, and clocked wind gusts to 73 mph. The northern shore of Lake Superior was flooded, and property along the shore was battered. Thousands of cords of pulpwood were washed into Lake Superior, and up to three feet of water flooded the main street of Grand Marais. Thunder accompanied the nor'easter .

More on this and other weather history

Upper St Clair, PA 7 Day Weather Forecast Details

Friday Nov 28

Snow Showers

Day: A slight chance of snow showers before 11am, then a chance of flurries between 11am and noon. Mostly cloudy, with a high near 34. Breezy, with a west wind 16 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 20%.

Partly Cloudy

Night: Partly cloudy, with a low around 20. West wind 6 to 11 mph, with gusts as high as 21 mph.

Saturday Nov 29

Increasing Clouds

Day: Increasing clouds, with a high near 35. Calm wind becoming east around 6 mph in the afternoon.

Rain And Snow

Night: Snow before 4am, then rain and snow. Low around 29. East wind 6 to 10 mph becoming south after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Sunday Nov 30

Snow

Day: Rain, possibly mixed with snow before 10am, then rain between 10am and 4pm, then a chance of rain and snow after 4pm. High near 42. South wind 14 to 18 mph becoming west in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Snow

Night: A chance of snow before 7pm. Mostly cloudy, with a low around 25. Chance of precipitation is 30%.

Monday Dec 1

Mostly Cloudy

Day: Mostly cloudy, with a high near 33.

Snow

Night: A chance of snow after 1am. Mostly cloudy, with a low around 25. Chance of precipitation is 30%.

Tuesday Dec 2

Snow

Day: A chance of snow. Mostly cloudy, with a high near 34. Chance of precipitation is 50%.

Mostly Cloudy

Night: Mostly cloudy, with a low around 20.

Wednesday Dec 3

Partly Sunny

Day: Partly sunny, with a high near 34.

Mostly Cloudy

Night: Mostly cloudy, with a low around 23.

Thursday Dec 4

Mostly Cloudy

Day: Mostly cloudy, with a high near 35.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.