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

Heavy Rainfall for Portions of the West and Central U.S.; Monitoring Fire Weather Conditions for New England

Tropical moisture continues to flow across portions of the Great Basin, desert Southwest and California. Isolated instances of flash flooding remains possible. Meanwhile, a storm and associated frontal boundary will focus showers and thunderstorms for the center of the nation. For New England, dry and breezy conditions could enhance favorable fire weather conditions. Read More >

Current conditions at

York, York Airport (KTHV)

Lat: 39.92°NLon: 76.88°WElev: 479ft.

Overcast

67°F

19°C

Humidity 76%
Wind Speed Calm
Barometer 30.23 in (1023.6 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 20 Sep 8:53 pm EDT
Extended Forecast for

Grantley PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 60. East wind around 6 mph.

    Low: 60 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 76. Southeast wind 5 to 7 mph.

    High: 76 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57. Southeast wind 3 to 6 mph.

    Low: 57 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 81. Calm wind becoming south 5 to 7 mph in the morning.

    High: 81 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 63. South wind 3 to 6 mph.

    Low: 63 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers before 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.

    Low: 64 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers after 2pm. Mostly cloudy, with a high near 81. Chance of precipitation is 40%.

    High: 81 °F

    Partly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers before 2am. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.

    Low: 61 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 60. East wind around 6 mph.
Sunday
Partly sunny, with a high near 76. Southeast wind 5 to 7 mph.
Sunday Night
Partly cloudy, with a low around 57. Southeast wind 3 to 6 mph.
Monday
Mostly sunny, with a high near 81. Calm wind becoming south 5 to 7 mph in the morning.
Monday Night
Mostly cloudy, with a low around 63. South wind 3 to 6 mph.
Tuesday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers before 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
Wednesday
A chance of showers after 2pm. Mostly cloudy, with a high near 81. Chance of precipitation is 40%.
Wednesday Night
A chance of showers before 2am. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.
Thursday
A chance of showers after 2pm. Partly sunny, with a high near 75. Chance of precipitation is 30%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.
Friday
A chance of showers. Partly sunny, with a high near 75. Chance of precipitation is 50%.
Friday Night
Mostly cloudy, with a low around 61.
Saturday
Partly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grantley PA
 39.95°N 76.72°W (Elev. 433 ft)
Last Update:
8:11 pm EDT Sep 20, 2025
Forecast Valid:
9pm EDT Sep 20, 2025-6pm EDT Sep 27, 2025
 
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