National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

New Castle Municipal Airport (KUCP)

Lat: 41.02°NLon: 80.42°WElev: 1072ft.

Mostly Cloudy

67°F

19°C

Humidity 100%
Wind Speed E 5 mph
Barometer 29.86 in (1012.3 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 22 Aug 6:56 pm EDT
Extended Forecast for

South New Castle PA

  • Tonight

    Tonight: Showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Some of the storms could be severe. Low around 59. East wind around 6 mph becoming west after midnight. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 59 °F

    Severe
    Thunderstorms
    then Chance
    Showers

  • Sunday

    Sunday: A chance of showers before 2pm, then a slight chance of showers and thunderstorms between 2pm and 4pm. Mostly sunny, with a high near 75. West wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, mainly before 11pm. Partly cloudy, with a low around 54. West wind around 5 mph. Chance of precipitation is 30%.

    Low: 54 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Monday

    Monday: Mostly sunny, with a high near 73. West wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 73 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 54. West wind around 5 mph becoming calm in the evening.

    Low: 54 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 60.

    Low: 60 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Some of the storms could be severe. Low around 59. East wind around 6 mph becoming west after midnight. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A chance of showers before 2pm, then a slight chance of showers and thunderstorms between 2pm and 4pm. Mostly sunny, with a high near 75. West wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers and thunderstorms, mainly before 11pm. Partly cloudy, with a low around 54. West wind around 5 mph. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 73. West wind 6 to 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 54. West wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 79.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Mostly sunny, with a high near 82.
Wednesday Night
Mostly cloudy, with a low around 60.
Thursday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 62. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 82. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 60. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 82.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South New Castle PA
 40.97°N 80.31°W (Elev. 1033 ft)
Last Update:
7:41 pm EDT Aug 22, 2026
Forecast Valid:
7pm EDT Aug 22, 2026-6pm EDT Aug 29, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation