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.

Partly Cloudy

29°F

-2°C

Humidity 69%
Wind Speed SW 15 G 24 mph
Barometer 30.24 in (1026.8 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 12 Jan 10:56 am EST
Extended Forecast for

3 Miles WSW Mercer PA

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 36. Southwest wind 13 to 15 mph, with gusts as high as 25 mph.

    High: 36 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly clear, with a low around 26. Southwest wind 7 to 9 mph.

    Low: 26 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of sprinkles before 4pm, then a slight chance of rain between 4pm and 5pm, then a chance of sprinkles after 5pm. Partly sunny, with a high near 42. South wind 9 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 42 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Tuesday Night

    Tuesday Night: A chance of rain, mainly after 1am. Mostly cloudy, with a low around 36. Southwest wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Chance Rain

  • Wednesday

    Wednesday: Rain likely, possibly mixed with snow before 10am, then rain likely between 10am and 1pm, then rain and snow after 1pm. High near 40. Southwest wind around 9 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Snow. Low around 16. Chance of precipitation is 80%.

    Low: 16 °F

    Snow

  • Thursday

    Thursday: Snow likely, mainly before 1pm. Mostly cloudy, with a high near 21. Chance of precipitation is 60%.

    High: 21 °F

    Snow Likely

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 9.

    Low: 9 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of snow after 1pm. Mostly cloudy, with a high near 27. Chance of precipitation is 40%.

    High: 27 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 36. Southwest wind 13 to 15 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 26. Southwest wind 7 to 9 mph.
Tuesday
A chance of sprinkles before 4pm, then a slight chance of rain between 4pm and 5pm, then a chance of sprinkles after 5pm. Partly sunny, with a high near 42. South wind 9 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Tuesday Night
A chance of rain, mainly after 1am. Mostly cloudy, with a low around 36. Southwest wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Rain likely, possibly mixed with snow before 10am, then rain likely between 10am and 1pm, then rain and snow after 1pm. High near 40. Southwest wind around 9 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Wednesday Night
Snow. Low around 16. Chance of precipitation is 80%.
Thursday
Snow likely, mainly before 1pm. Mostly cloudy, with a high near 21. Chance of precipitation is 60%.
Thursday Night
Mostly cloudy, with a low around 9.
Friday
A chance of snow after 1pm. Mostly cloudy, with a high near 27. Chance of precipitation is 40%.
Friday Night
A chance of snow. Mostly cloudy, with a low around 20. Chance of precipitation is 50%.
Saturday
Snow likely. Mostly cloudy, with a high near 32. Chance of precipitation is 70%.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 11. Chance of precipitation is 50%.
Sunday
A chance of snow. Partly sunny, with a high near 20. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Mercer PA
 41.21°N 80.28°W (Elev. 1132 ft)
Last Update:
10:34 am EST Jan 12, 2026
Forecast Valid:
11am EST Jan 12, 2026-6pm EST Jan 18, 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