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.

Light Rain

45°F

7°C

Humidity 86%
Wind Speed W 8 G 20 mph
Barometer 29.93 in (1015.3 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 14 May 9:56 am EDT
Extended Forecast for

4 Miles S Mercer PA

  • Today

    Today: A chance of rain before 2pm, then a slight chance of showers between 2pm and 3pm. Mostly cloudy, with a high near 54. Northwest wind 10 to 14 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 54 °F

    Chance Rain

  • Tonight

    Tonight: Mostly cloudy during the early evening, then gradual clearing, with a low around 41. Northwest wind 5 to 9 mph.

    Low: 41 °F

    Gradual
    Clearing

  • Friday

    Friday: Increasing clouds, with a high near 69. Northwest wind 5 to 7 mph.

    High: 69 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Partly cloudy, with a low around 49. Calm wind becoming south around 5 mph after midnight.

    Low: 49 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 80. South wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Partly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers after 2am. Low around 60. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 60 °F

    Showers

  • Sunday

    Sunday: Showers, mainly before 8am. High near 81. Chance of precipitation is 80%.

    High: 81 °F

    Showers then
    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

Detailed Forecast

Today
A chance of rain before 2pm, then a slight chance of showers between 2pm and 3pm. Mostly cloudy, with a high near 54. Northwest wind 10 to 14 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around 41. Northwest wind 5 to 9 mph.
Friday
Increasing clouds, with a high near 69. Northwest wind 5 to 7 mph.
Friday Night
Partly cloudy, with a low around 49. Calm wind becoming south around 5 mph after midnight.
Saturday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 80. South wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers after 2am. Low around 60. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers, mainly before 8am. High near 81. Chance of precipitation is 80%.
Sunday Night
Partly cloudy, with a low around 61.
Monday
Mostly sunny, with a high near 87.
Monday Night
Mostly clear, with a low around 65.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 85. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.
Wednesday
Showers likely. Mostly cloudy, with a high near 79. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Mercer PA
 41.16°N 80.23°W (Elev. 1089 ft)
Last Update:
7:01 am EDT May 14, 2026
Forecast Valid:
10am EDT May 14, 2026-6pm EDT May 20, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation