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

63°F

17°C

Humidity 87%
Wind Speed S 5 mph
Barometer 29.97 in (1016.0 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 12 Oct 8:56 pm EDT
Extended Forecast for

3 Miles S Mercer PA

  • Tonight

    Tonight: Partly cloudy, with a low around 59. South wind around 7 mph.

    Low: 59 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 82. South wind 9 to 14 mph, with gusts as high as 25 mph.

    High: 82 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62. Southwest wind 5 to 10 mph becoming light west after midnight. Winds could gust as high as 21 mph.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Showers and thunderstorms. High near 74. Calm wind becoming west 5 to 8 mph in the morning. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 74 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers likely before 8pm. Mostly cloudy, with a low around 48. North wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Showers
    Likely then
    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers after 2pm. Partly sunny, with a high near 68. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 68 °F

    Partly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Showers, mainly after 8pm. Low around 55. Chance of precipitation is 80%.

    Low: 55 °F

    Showers

  • Friday

    Friday: Showers, mainly before 2pm. High near 67. Breezy. Chance of precipitation is 80%.

    High: 67 °F

    Showers and
    Breezy

  • Friday Night

    Friday Night: A chance of showers. Mostly cloudy, with a low around 35. Chance of precipitation is 40%.

    Low: 35 °F

    Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 59. South wind around 7 mph.
Tuesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 82. South wind 9 to 14 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 62. Southwest wind 5 to 10 mph becoming light west after midnight. Winds could gust as high as 21 mph.
Wednesday
Showers and thunderstorms. High near 74. Calm wind becoming west 5 to 8 mph in the morning. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely before 8pm. Mostly cloudy, with a low around 48. North wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A chance of showers after 2pm. Partly sunny, with a high near 68. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Showers, mainly after 8pm. Low around 55. Chance of precipitation is 80%.
Friday
Showers, mainly before 2pm. High near 67. Breezy. Chance of precipitation is 80%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 35. Chance of precipitation is 40%.
Saturday
Partly sunny, with a high near 52.
Saturday Night
Mostly clear, with a low around 30.
Sunday
Sunny, with a high near 59.
Sunday Night
Mostly clear, with a low around 36.
Monday
Mostly sunny, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Mercer PA
 41.18°N 80.23°W (Elev. 1083 ft)
Last Update:
6:46 pm EDT Oct 12, 2026
Forecast Valid:
9pm EDT Oct 12, 2026-6pm EDT Oct 19, 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