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

Hazardous Weather Conditions

Current conditions at

New Castle Municipal Airport (KUCP)

Lat: 41.02°NLon: 80.42°WElev: 1072ft.

Partly Cloudy

78°F

26°C

Humidity 47%
Wind Speed W 17 G 31 mph
Barometer 29.61 in (1003.3 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 18 Jun 1:56 pm EDT
Extended Forecast for

Slippery Rock PA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 78. Breezy, with a west wind 13 to 20 mph, with gusts as high as 32 mph.

    High: 78 °F

    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 53. West wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.

    Low: 53 °F

    Decreasing
    Clouds

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 74. West wind 5 to 13 mph.

    High: 74 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 54. West wind 5 to 7 mph.

    Low: 54 °F

    Mostly Clear

  • Saturday

    Saturday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 74. West wind 6 to 11 mph. Chance of precipitation is 30%.

    High: 74 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 54. Chance of precipitation is 30%.

    Low: 54 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.

    Low: 57 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday

    Monday: Showers and possibly a thunderstorm, mainly before 2pm, then a chance of showers and thunderstorms after 2pm. High near 74. Chance of precipitation is 80%.

    High: 74 °F

    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 78. Breezy, with a west wind 13 to 20 mph, with gusts as high as 32 mph.
Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 53. West wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.
Juneteenth
Mostly sunny, with a high near 74. West wind 5 to 13 mph.
Friday Night
Mostly clear, with a low around 54. West wind 5 to 7 mph.
Saturday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 74. West wind 6 to 11 mph. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 54. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 77.
Sunday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.
Monday
Showers and possibly a thunderstorm, mainly before 2pm, then a chance of showers and thunderstorms after 2pm. High near 74. Chance of precipitation is 80%.
Monday Night
A chance of showers before 2am. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 75.
Tuesday Night
Partly cloudy, with a low around 54.
Wednesday
Mostly sunny, with a high near 77.
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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:
2:21 pm EDT Jun 18, 2026
Forecast Valid:
2pm EDT Jun 18, 2026-6pm EDT Jun 24, 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