National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

New Castle Municipal Airport (KUCP)

Lat: 41.02°NLon: 80.42°WElev: 1072ft.

Overcast

66°F

19°C

Humidity 96%
Wind Speed W 7 mph
Barometer 29.86 in (1012.3 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 22 Jun 11:56 am EDT
Extended Forecast for

Mercer PA

  • Today

    Today: A slight chance of showers and thunderstorms after 2pm. Cloudy, with a high near 72. Calm wind becoming northwest 5 to 8 mph in the afternoon. Chance of precipitation is 20%.

    High: 72 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly cloudy, with a low around 54. North wind 6 to 9 mph.

    Low: 54 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 75. North wind 7 to 11 mph.

    High: 75 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 51. North wind around 6 mph becoming calm in the evening.

    Low: 51 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 78. Calm wind becoming west around 5 mph in the afternoon.

    High: 78 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers after 2am. Partly cloudy, with a low around 57. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 57 °F

    Partly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 70%.

    High: 80 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.

    Low: 59 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers after 8am. Partly sunny, with a high near 79. Chance of precipitation is 30%.

    High: 79 °F

    Chance
    Showers

Detailed Forecast

Today
A slight chance of showers and thunderstorms after 2pm. Cloudy, with a high near 72. Calm wind becoming northwest 5 to 8 mph in the afternoon. Chance of precipitation is 20%.
Tonight
Mostly cloudy, with a low around 54. North wind 6 to 9 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 75. North wind 7 to 11 mph.
Tuesday Night
Mostly clear, with a low around 51. North wind around 6 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 78. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
A chance of showers after 2am. Partly cloudy, with a low around 57. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 70%.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Friday
A chance of showers after 8am. Partly sunny, with a high near 79. Chance of precipitation is 30%.
Friday Night
A chance of showers. Partly cloudy, with a low around 58. Chance of precipitation is 40%.
Saturday
A chance of showers. Partly sunny, with a high near 81. Chance of precipitation is 50%.
Saturday Night
Mostly cloudy, with a low around 60.
Sunday
Mostly sunny, with a high near 85.
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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:
11:41 am EDT Jun 22, 2026
Forecast Valid:
11am EDT Jun 22, 2026-6pm EDT Jun 28, 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