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

71°F

22°C

Humidity 96%
Wind Speed Calm
Barometer 29.97 in (1015.9 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 4 Sep 8:56 pm EDT
Extended Forecast for

Slippery Rock PA

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before midnight. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 63. Calm wind. Chance of precipitation is 20%.

    Low: 63 °F

    Slight Chance
    T-storms and
    Patchy Fog
    then Patchy
    Fog

  • Saturday

    Saturday: A chance of showers, mainly before 1pm. Mostly cloudy, with a high near 80. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 80 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 54. Northeast wind 3 to 6 mph.

    Low: 54 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 78. Northeast wind 5 to 7 mph.

    High: 78 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 53. East wind 3 to 5 mph.

    Low: 53 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 62.

    Low: 62 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms before midnight. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 63. Calm wind. Chance of precipitation is 20%.
Saturday
A chance of showers, mainly before 1pm. Mostly cloudy, with a high near 80. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Partly cloudy, with a low around 54. Northeast wind 3 to 6 mph.
Sunday
Sunny, with a high near 78. Northeast wind 5 to 7 mph.
Sunday Night
Mostly clear, with a low around 53. East wind 3 to 5 mph.
Labor Day
Sunny, with a high near 79.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Mostly sunny, with a high near 82.
Tuesday Night
Mostly cloudy, with a low around 62.
Wednesday
Partly sunny, with a high near 86.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 50%.
Thursday
A chance of showers. Partly sunny, with a high near 79. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 54.
Friday
Mostly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Slippery Rock PA
 41.06°N 80.07°W (Elev. 1260 ft)
Last Update:
6:12 pm EDT Sep 4, 2026
Forecast Valid:
9pm EDT Sep 4, 2026-6pm EDT Sep 11, 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