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

59°F

15°C

Humidity 87%
Wind Speed Calm
Barometer 30.20 in (1024.1 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 23 Jul 9:56 pm EDT
Extended Forecast for

Slippery Rock PA

  • Tonight

    Tonight: Mostly clear, with a low around 50. Light northeast wind.

    Low: 50 °F

    Mostly Clear

  • Friday

    Friday: Increasing clouds, with a high near 80. Southeast wind around 6 mph.

    High: 80 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Partly cloudy, with a low around 58. Southeast wind 3 to 5 mph.

    Low: 58 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 81. Light and variable wind becoming south around 6 mph in the morning. Chance of precipitation is 30%.

    High: 81 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 59. Calm wind. Chance of precipitation is 30%.

    Low: 59 °F

    Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of thunderstorms before 8pm, then a chance of showers after 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.

    Low: 62 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 50%.

    High: 84 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 65. Chance of precipitation is 80%.

    Low: 65 °F

    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 50. Light northeast wind.
Friday
Increasing clouds, with a high near 80. Southeast wind around 6 mph.
Friday Night
Partly cloudy, with a low around 58. Southeast wind 3 to 5 mph.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 81. Light and variable wind becoming south around 6 mph in the morning. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 59. Calm wind. Chance of precipitation is 30%.
Sunday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of thunderstorms before 8pm, then a chance of showers after 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
Monday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 50%.
Monday Night
Showers and possibly a thunderstorm. Low around 65. Chance of precipitation is 80%.
Tuesday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Wednesday
Mostly sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Mostly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Slippery Rock PA
 41.08°N 80.06°W (Elev. 1237 ft)
Last Update:
10:31 pm EDT Jul 23, 2026
Forecast Valid:
10pm EDT Jul 23, 2026-6pm EDT Jul 30, 2026
 
Forecast Discussion
 
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Additional Resources

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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