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.

Fog/Mist

43°F

6°C

Humidity 100%
Wind Speed Calm
Barometer 30.15 in (1023.1 mb)
Dewpoint 43°F (6°C)
Visibility 1.50 mi
Last update 2 Apr 4:56 am EDT
Extended Forecast for

Mercer PA

  • Overnight

    Overnight: Isolated showers. Areas of fog. Otherwise, cloudy, with a low around 43. East wind around 5 mph. Chance of precipitation is 20%.

    Low: 43 °F

    Isolated
    Showers and
    Areas Fog

  • Thursday

    Thursday: Scattered showers, with thunderstorms also possible after 2pm. Patchy fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 76. Southeast wind 5 to 11 mph becoming south in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Scattered
    Showers and
    Patchy Fog
    then
    Scattered
    T-storms

  • Thursday Night

    Thursday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 60. South wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Scattered
    T-storms then
    Scattered
    Showers

  • Friday

    Friday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 75. Southwest wind 13 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 58. West wind around 6 mph becoming light and variable in the evening. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Showers
    Likely

  • Saturday

    Saturday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm, then showers after 8pm. Low around 43. Chance of precipitation is 100%.

    Low: 43 °F

    Showers

  • Sunday

    Sunday: Mostly cloudy, with a high near 49.

    High: 49 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Isolated showers. Areas of fog. Otherwise, cloudy, with a low around 43. East wind around 5 mph. Chance of precipitation is 20%.
Thursday
Scattered showers, with thunderstorms also possible after 2pm. Patchy fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 76. Southeast wind 5 to 11 mph becoming south in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 60. South wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 75. Southwest wind 13 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 58. West wind around 6 mph becoming light and variable in the evening. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers likely and possibly a thunderstorm, then showers after 8pm. Low around 43. Chance of precipitation is 100%.
Sunday
Mostly cloudy, with a high near 49.
Sunday Night
Mostly cloudy, with a low around 32.
Monday
Mostly sunny, with a high near 50.
Monday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 44.
Tuesday Night
Mostly clear, with a low around 24.
Wednesday
Sunny, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mercer PA
 41.23°N 80.25°W (Elev. 1234 ft)
Last Update:
5:31 am EDT Apr 2, 2026
Forecast Valid:
5am EDT Apr 2, 2026-6pm EDT Apr 8, 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