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

86°F

30°C

Humidity 36%
Wind Speed Vrbl 3 mph
Barometer 30.16 in (1022.2 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 8 Jun 1:56 pm EDT
Extended Forecast for

South New Castle PA

  • This Afternoon

    This Afternoon: Mostly sunny and hot, with a high near 90. Calm wind becoming southeast around 6 mph.

    High: 90 °F

    Hot

  • Tonight

    Tonight: Mostly cloudy, with a low around 68. Southeast wind around 6 mph.

    Low: 68 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 3pm. High near 87. South wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Isolated
    T-storms then
    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 67. South wind around 8 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 67 °F

    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 88. Southwest wind 7 to 10 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 8pm, then scattered showers and thunderstorms after 8pm. Mostly cloudy, with a low around 70. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Showers
    Likely then
    Scattered
    T-storms

  • Thursday

    Thursday: Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 90. Chance of precipitation is 80%.

    High: 90 °F

    Scattered
    T-storms then
    T-storms

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Low around 68. Chance of precipitation is 80%.

    Low: 68 °F

    T-storms then
    Chance
    T-storms

  • Friday

    Friday: Showers, with thunderstorms also possible after 8am. High near 85. Chance of precipitation is 80%.

    High: 85 °F

    Showers then
    T-storms

Detailed Forecast

This Afternoon
Mostly sunny and hot, with a high near 90. Calm wind becoming southeast around 6 mph.
Tonight
Mostly cloudy, with a low around 68. Southeast wind around 6 mph.
Tuesday
Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 3pm. High near 87. South wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and possibly a thunderstorm. Low around 67. South wind around 8 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers and possibly a thunderstorm. High near 88. Southwest wind 7 to 10 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then scattered showers and thunderstorms after 8pm. Mostly cloudy, with a low around 70. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 90. Chance of precipitation is 80%.
Thursday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Low around 68. Chance of precipitation is 80%.
Friday
Showers, with thunderstorms also possible after 8am. High near 85. Chance of precipitation is 80%.
Friday Night
Thunderstorms likely before 8pm. Partly cloudy, with a low around 58. Chance of precipitation is 60%.
Saturday
Sunny, with a high near 84.
Saturday Night
Partly cloudy, with a low around 62.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 82. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
South New Castle PA
 40.97°N 80.34°W (Elev. 1047 ft)
Last Update:
2:21 pm EDT Jun 8, 2026
Forecast Valid:
2pm EDT Jun 8, 2026-6pm EDT Jun 14, 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