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.

Fair

66°F

19°C

Humidity 45%
Wind Speed NE 6 mph
Barometer 30.21 in (1024.4 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 21 May 6:56 pm EDT
Extended Forecast for

Grove City PA

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 47. East wind 5 to 8 mph.

    Low: 47 °F

    Decreasing
    Clouds

  • Friday

    Friday: Mostly cloudy, with a high near 66. East wind 11 to 13 mph.

    High: 66 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Showers, mainly after 2am. Low around 46. East wind 13 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 46 °F

    Showers
    Likely then
    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm before 2pm, then showers likely between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. High near 60. East wind around 17 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 60 °F

    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm, then showers after 8pm. Low around 50. Southeast wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 50 °F

    Showers

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Showers
    Likely then
    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 40%.

    Low: 57 °F

    Chance
    Showers

  • Memorial Day

    Memorial Day: A chance of showers before 2pm. Mostly cloudy, with a high near 75. Chance of precipitation is 40%.

    High: 75 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 47. East wind 5 to 8 mph.
Friday
Mostly cloudy, with a high near 66. East wind 11 to 13 mph.
Friday Night
Showers, mainly after 2am. Low around 46. East wind 13 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Showers and possibly a thunderstorm before 2pm, then showers likely between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. High near 60. East wind around 17 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday Night
Showers likely and possibly a thunderstorm, then showers after 8pm. Low around 50. Southeast wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 40%.
Memorial Day
A chance of showers before 2pm. Mostly cloudy, with a high near 75. Chance of precipitation is 40%.
Monday Night
Mostly cloudy, with a low around 57.
Tuesday
Mostly cloudy, with a high near 82.
Tuesday Night
Mostly cloudy, with a low around 58.
Wednesday
A chance of showers. Partly sunny, with a high near 81. Chance of precipitation is 30%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grove City PA
 41.15°N 80.08°W (Elev. 1247 ft)
Last Update:
7:31 pm EDT May 21, 2026
Forecast Valid:
7pm EDT May 21, 2026-6pm EDT May 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