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

46°F

8°C

Humidity 66%
Wind Speed Calm
Barometer 30.00 in (1017.8 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 21 Mar 12:56 pm EDT
Extended Forecast for

Slippery Rock PA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 59. Calm wind.

    High: 59 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 47. South wind 3 to 7 mph.

    Low: 47 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3pm. High near 72. Southwest wind 7 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 72 °F

    Slight Chance
    T-storms then
    Showers

  • Sunday Night

    Sunday Night: Rain showers before 5am, then a chance of rain and snow showers. Some thunder is also possible. Low around 32. North wind 7 to 9 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 32 °F

    Showers then
    Rain/Snow

  • Monday

    Monday: A chance of snow showers before 8am. Mostly cloudy, with a high near 43. Northwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    High: 43 °F

    Chance Snow
    Showers then
    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 23.

    Low: 23 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 55.

    High: 55 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 59. Calm wind.
Tonight
Mostly cloudy, with a low around 47. South wind 3 to 7 mph.
Sunday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3pm. High near 72. Southwest wind 7 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Rain showers before 5am, then a chance of rain and snow showers. Some thunder is also possible. Low around 32. North wind 7 to 9 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Monday
A chance of snow showers before 8am. Mostly cloudy, with a high near 43. Northwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Monday Night
Partly cloudy, with a low around 23.
Tuesday
Sunny, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
Partly sunny, with a high near 55.
Wednesday Night
A chance of rain after 2am. Mostly cloudy, with a low around 38. Chance of precipitation is 30%.
Thursday
A chance of rain. Mostly cloudy, with a high near 63. Chance of precipitation is 50%.
Thursday Night
Rain likely. Mostly cloudy, with a low around 32. Chance of precipitation is 60%.
Friday
A chance of rain. Partly sunny, with a high near 46. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Slippery Rock PA
 41.08°N 80.06°W (Elev. 1237 ft)
Last Update:
1:26 pm EDT Mar 21, 2026
Forecast Valid:
1pm EDT Mar 21, 2026-6pm EDT Mar 27, 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