South New Castle, PA Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

Sunny 24°F
Feels Like 24°F  
Humidity 60% Dew Point 13°F Wind NNW 1 MPH Gusts 3 Barometer 29.15 in.
Solar Rad 23 w/m2
Report from a personal weather station 3 mi. ENE of central South New Castle
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Point Forecast at a Glance

ThuDec 4
Thu Dec 4: Mostly Sunny, High 30F, Low 7F
30
7
FriDec 5
Fri Dec 5: Increasing Clouds, High 32F, Low 17F
32
17
SatDec 6
Sat Dec 6: Snow, High 36F, Low 23F
20%
36
23
SunDec 7
Sun Dec 7: Snow, High 34F, Low 17F
40%
34
17
MonDec 8
Mon Dec 8: Mostly Sunny, High 27F, Low 11F
27
11
TueDec 9
Tue Dec 9: Snow, High 34F, Low 24F
70%
34
24
WedDec 10
Wed Dec 10: Rain And Snow, High 37F
70%
37
 

7-Day Temperature Trend

Week Ahead Summary

High temperatures remain relatively stable through the week, ranging from 27°F to 37°F. Unsettled weather expected with snow likely on at least 4 days.

Climate Context

This week's forecast shows temperatures running 7°F below the historical average for December. Normal highs for this period are around 40°F with lows around 25°F.

This Date in Weather History

1972 - Winds gusting to 70 mph sent the temperature at Livingston, MT, plunging from 52 degrees to 18 degrees in just twenty minutes.

More on this and other weather history

South New Castle, PA 7 Day Weather Forecast Details

Thursday Dec 4

Mostly Sunny

Day: Mostly sunny, with a high near 30. Northwest wind 6 to 8 mph.

Partly Cloudy

Night: Partly cloudy, with a low around 7. Calm wind.

Friday Dec 5

Increasing Clouds

Day: Increasing clouds, with a high near 32. Light and variable wind.

Mostly Cloudy

Night: Mostly cloudy, with a low around 17. Light south wind.

Saturday Dec 6

Snow

Day: A slight chance of snow. Cloudy, with a high near 36. South wind 5 to 7 mph. Chance of precipitation is 20%.

Snow

Night: A slight chance of snow. Mostly cloudy, with a low around 23. Chance of precipitation is 20%.

Sunday Dec 7

Snow

Day: A chance of snow after 1pm. Cloudy, with a high near 34. Chance of precipitation is 40%.

Snow

Night: A chance of snow before 1am. Mostly cloudy, with a low around 17. Chance of precipitation is 30%.

Monday Dec 8

Mostly Sunny

Day: Mostly sunny, with a high near 27.

Mostly Cloudy

Night: Mostly cloudy, with a low around 11.

Tuesday Dec 9

Snow

Day: Snow likely. Mostly cloudy, with a high near 34. Chance of precipitation is 70%.

Snow

Night: Snow likely. Cloudy, with a low around 24. Chance of precipitation is 60%.

Wednesday Dec 10

Rain And Snow

Day: Rain and snow likely. Cloudy, with a high near 37. Chance of precipitation is 70%.


About South New Castle, PA

South New Castle is a borough in central Lawrence County, Pennsylvania, United States. The population was 649 at the 2020 census. It is primarily a residential community which lies south of the city of New Castle, and is part of the Pittsburgh metropolitan area. The borough will officially be annexed into nearby Shenango Township on January 1, 2026.

Content from Wikipedia, licensed under CC BY-SA 3.0.

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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.

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