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

New Castle Municipal Airport (KUCP)

Lat: 41.02°NLon: 80.42°WElev: 1072ft.

Fair

32°F

0°C

Humidity 69%
Wind Speed Calm
Barometer 30.33 in (1029.6 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 25 Mar 12:56 am EDT
Extended Forecast for

South New Castle PA

  • Overnight

    Overnight: Mostly cloudy, with a low around 32. Calm wind.

    Low: 32 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 60. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 60 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 49. South wind around 6 mph.

    Low: 49 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of rain, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 70. South wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 70 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Rain and possibly a thunderstorm. Low around 35. Southwest wind 8 to 10 mph becoming north after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 35 °F

    Rain

  • Friday

    Friday: Partly sunny, with a high near 45.

    High: 45 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 22.

    Low: 22 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 32. Calm wind.
Wednesday
Partly sunny, with a high near 60. Calm wind becoming south 5 to 7 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 49. South wind around 6 mph.
Thursday
A chance of rain, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 70. South wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Rain and possibly a thunderstorm. Low around 35. Southwest wind 8 to 10 mph becoming north after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Friday
Partly sunny, with a high near 45.
Friday Night
Mostly clear, with a low around 22.
Saturday
Mostly sunny, with a high near 46.
Saturday Night
Partly cloudy, with a low around 28.
Sunday
Mostly sunny, with a high near 56.
Sunday Night
Mostly cloudy, with a low around 40.
Monday
A chance of rain. Partly sunny, with a high near 61. Chance of precipitation is 30%.
Monday Night
A chance of rain. Mostly cloudy, with a low around 47. Chance of precipitation is 30%.
Tuesday
A chance of rain. Partly sunny, with a high near 68. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South New Castle PA
 40.95°N 80.35°W (Elev. 1096 ft)
Last Update:
12:11 am EDT Mar 25, 2026
Forecast Valid:
1am EDT Mar 25, 2026-6pm EDT Mar 31, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation