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.

A Few Clouds

53°F

12°C

Humidity 57%
Wind Speed SW 9 mph
Barometer 29.89 in (1013.8 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 20 Mar 9:56 am EDT
Extended Forecast for

Mercer PA

  • Today

    Today: Showers, with thunderstorms also possible after 5pm. High near 58. Southwest wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 58 °F

    Chance
    Showers then
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 35. North wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 35 °F

    Chance
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 56. North wind 3 to 5 mph.

    High: 56 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 42. Calm wind becoming south 5 to 7 mph after midnight.

    Low: 42 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers, mainly after 2pm. Partly sunny, with a high near 70. Southwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 70 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Rain showers likely before 5am, then a chance of rain and snow showers. Some thunder is also possible. Mostly cloudy, with a low around 34. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 34 °F

    Showers
    Likely then
    Rain/Snow
    Likely

  • Monday

    Monday: A chance of rain and snow before 8am. Partly sunny, with a high near 43. Chance of precipitation is 30%.

    High: 43 °F

    Chance
    Rain/Snow
    then Partly
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny

Detailed Forecast

Today
Showers, with thunderstorms also possible after 5pm. High near 58. Southwest wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 35. North wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Partly sunny, with a high near 56. North wind 3 to 5 mph.
Saturday Night
Mostly cloudy, with a low around 42. Calm wind becoming south 5 to 7 mph after midnight.
Sunday
A chance of showers, mainly after 2pm. Partly sunny, with a high near 70. Southwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Rain showers likely before 5am, then a chance of rain and snow showers. Some thunder is also possible. Mostly cloudy, with a low around 34. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Monday
A chance of rain and snow before 8am. Partly sunny, with a high near 43. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 24.
Tuesday
Partly sunny, with a high near 49.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
Partly sunny, with a high near 49.
Wednesday Night
A chance of rain and snow. Partly cloudy, with a low around 33. Chance of precipitation is 30%.
Thursday
A chance of rain and snow. Partly sunny, with a high near 62. Chance of precipitation is 30%.
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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:
7:41 am EDT Mar 20, 2026
Forecast Valid:
10am EDT Mar 20, 2026-6pm EDT Mar 26, 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