Flooding Risks from Tropical Moisture Across the Intermountain West and East Coast

Tropical moisture from Isaias and Rachel will impact portions of the Intermountain West and East Coast states. Flooding, gusty winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, record warmth will spread northward across the Mississippi Valley the next few days. Looking for snow, the first winter storm of the season is underway across the northern Rockies. Read More >

Current conditions at

York, York Airport (KTHV)

Lat: 39.92°NLon: 76.88°WElev: 479ft.

Light Rain Fog/Mist

59°F

15°C

Humidity 96%
Wind Speed N 7 mph
Barometer 29.93 in (1013.5 mb)
Dewpoint 58°F (14°C)
Visibility 5.00 mi
Last update 11 Oct 4:53 pm EDT
Extended Forecast for

McSherrystown PA

Flash Flood Warning until October 11, 10:15pm
Click here for hazard details and duration
...
  •  
    Flash Flood Warning until October 11, 10:15pm

    NOW until 10:15pm Sun

    Flash Flood Warning

  • Tonight

    Low: 58 °F

    Rain

  • Columbus Day

    Columbus Day: A chance of rain, mainly before 7am.  Cloudy, then gradually becoming mostly sunny, with a high near 73. North wind 7 to 9 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 73 °F

    Chance Rain
    then Partly
    Sunny

  • Monday Night

    Monday Night: Patchy fog after 10pm.  Otherwise, partly cloudy, with a low around 55. Light north wind.

    Low: 55 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 9am.  Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 79. Calm wind becoming southwest 5 to 9 mph in the afternoon.

    High: 79 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 65. Southwest wind 3 to 8 mph.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Wednesday Night

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

    Low: 57 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 67.

    High: 67 °F

    Partly Sunny

Detailed Forecast

Tonight
Rain and possibly a thunderstorm before midnight, then rain likely. Low around 58. East wind 5 to 8 mph becoming north after midnight. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Columbus Day
A chance of rain, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 73. North wind 7 to 9 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 55. Light north wind.
Tuesday
Patchy fog before 9am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 79. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 65. Southwest wind 3 to 8 mph.
Wednesday
Sunny, with a high near 80.
Wednesday Night
Mostly cloudy, with a low around 57.
Thursday
Partly sunny, with a high near 67.
Thursday Night
A chance of showers after 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 50%.
Friday
Showers likely, mainly between 8am and 2pm. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 45. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 54. Breezy.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
Sunny, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
McSherrystown PA
 39.8°N 77.01°W (Elev. 568 ft)
2:21 pm EDT Oct 11, 2026
7pm EDT Oct 11, 2026-6pm EDT Oct 18, 2026
 
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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