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

16°F

-9°C

Humidity 74%
Wind Speed Vrbl 6 mph
Barometer 30.13 in (1023.8 mb)
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill7°F (-14°C)
Last update 15 Dec 9:56 pm EST
Extended Forecast for

Mercer PA

  • Tonight

    Tonight: Partly cloudy, with a low around 10. Southwest wind 3 to 7 mph.

    Low: 10 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 30. Light south wind increasing to 5 to 10 mph in the morning.

    High: 30 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 23. South wind 9 to 13 mph, with gusts as high as 23 mph.

    Low: 23 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 38. Southwest wind 7 to 13 mph.

    High: 38 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 25. Light and variable wind becoming south 5 to 9 mph in the evening.

    Low: 25 °F

    Mostly Cloudy

  • Thursday

    Thursday: Rain likely, mainly after 1pm. Mostly cloudy, with a high near 47. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 47 °F

    Slight Chance
    Rain then
    Rain Likely

  • Thursday Night

    Thursday Night: Rain before 1am, then a chance of rain and snow. Low around 21. Chance of precipitation is 90%.

    Low: 21 °F

    Rain then
    Rain/Snow

  • Friday

    Friday: A chance of snow showers before 1pm. Mostly cloudy, with a high near 29. Chance of precipitation is 30%.

    High: 29 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 18.

    Low: 18 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 10. Southwest wind 3 to 7 mph.
Tuesday
Mostly sunny, with a high near 30. Light south wind increasing to 5 to 10 mph in the morning.
Tuesday Night
Increasing clouds, with a low around 23. South wind 9 to 13 mph, with gusts as high as 23 mph.
Wednesday
Mostly cloudy, with a high near 38. Southwest wind 7 to 13 mph.
Wednesday Night
Mostly cloudy, with a low around 25. Light and variable wind becoming south 5 to 9 mph in the evening.
Thursday
Rain likely, mainly after 1pm. Mostly cloudy, with a high near 47. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain before 1am, then a chance of rain and snow. Low around 21. Chance of precipitation is 90%.
Friday
A chance of snow showers before 1pm. Mostly cloudy, with a high near 29. Chance of precipitation is 30%.
Friday Night
Mostly cloudy, with a low around 18.
Saturday
A chance of showers after 1pm. Mostly cloudy, with a high near 40. Chance of precipitation is 30%.
Saturday Night
A chance of rain or freezing rain. Mostly cloudy, with a low around 28. Chance of precipitation is 40%.
Sunday
A chance of rain and snow. Partly sunny, with a high near 37. Chance of precipitation is 30%.
Sunday Night
A chance of snow and freezing rain. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.
Monday
A chance of rain and snow. Mostly cloudy, with a high near 37. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mercer PA
 41.23°N 80.25°W (Elev. 1234 ft)
Last Update:
8:49 pm EST Dec 15, 2025
Forecast Valid:
10pm EST Dec 15, 2025-6pm EST Dec 22, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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