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.

Overcast

47°F

8°C

Humidity 77%
Wind Speed W 9 mph
Barometer 29.92 in (1014.9 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 9 Nov 3:56 am EST
Extended Forecast for

Mercer PA

  • Today

    Today: Partly sunny, with a high near 55. Northwest wind 10 to 15 mph.

    High: 55 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 33. Calm wind becoming southwest 5 to 7 mph after midnight.

    Low: 33 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 61. West wind 8 to 11 mph.

    High: 61 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 31. Light southwest wind.

    Low: 31 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Partly sunny, with a high near 59. Calm wind becoming southwest around 5 mph.

    High: 59 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A chance of rain after 1am. Mostly cloudy, with a low around 38. Chance of precipitation is 40%.

    Low: 38 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: Rain likely. Mostly cloudy, with a high near 54. Chance of precipitation is 70%.

    High: 54 °F

    Rain Likely

  • Thursday Night

    Thursday Night: Rain likely, mainly after 1am. Mostly cloudy, with a low around 32. Chance of precipitation is 60%.

    Low: 32 °F

    Rain Likely

  • Friday

    Friday: Rain and snow likely before 1pm, then a chance of rain. Mostly cloudy, with a high near 45. Chance of precipitation is 60%.

    High: 45 °F

    Rain/Snow
    Likely

Detailed Forecast

Today
Partly sunny, with a high near 55. Northwest wind 10 to 15 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 33. Calm wind becoming southwest 5 to 7 mph after midnight.
Tuesday
Sunny, with a high near 61. West wind 8 to 11 mph.
Tuesday Night
Mostly clear, with a low around 31. Light southwest wind.
Veterans Day
Partly sunny, with a high near 59. Calm wind becoming southwest around 5 mph.
Wednesday Night
A chance of rain after 1am. Mostly cloudy, with a low around 38. Chance of precipitation is 40%.
Thursday
Rain likely. Mostly cloudy, with a high near 54. Chance of precipitation is 70%.
Thursday Night
Rain likely, mainly after 1am. Mostly cloudy, with a low around 32. Chance of precipitation is 60%.
Friday
Rain and snow likely before 1pm, then a chance of rain. Mostly cloudy, with a high near 45. Chance of precipitation is 60%.
Friday Night
A chance of rain before 1am. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 45. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 30.
Sunday
Partly sunny, with a high near 49.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mercer PA
 41.23°N 80.22°W (Elev. 1102 ft)
Last Update:
1:21 am EST Nov 9, 2026
Forecast Valid:
4am EST Nov 9, 2026-6pm EST Nov 15, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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