Current conditions at

Lancaster, Lancaster Airport (KLNS)

Lat: 40.12°NLon: 76.29°WElev: 397ft.

Thunderstorm in Vicinity

79°F

26°C

Humidity 72%
Wind Speed NE 12 G 26 mph
Barometer 29.94 in (1013.5 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 1 Sep 7:53 pm EDT
Extended Forecast for

Cornwall PA

Severe T-storm Watch September 1, 07:58pm until September 2, 12:00am
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch September 1, 07:58pm until September 2, 12:00am

    NOW until 12:00am Wed

    Severe T-storm Watch

  • Tonight

    Low: 70 °F

    Severe
    Thunderstorms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, mainly after 10am. Some of the storms could be severe.  Mostly cloudy, with a high near 81. Southeast wind 5 to 8 mph.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Severe
    Thunderstorms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 11pm, then showers likely and possibly a thunderstorm between 11pm and midnight, then a chance of showers and thunderstorms after midnight. Some of the storms could be severe.  Mostly cloudy, with a low around 69. South wind 6 to 9 mph.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 69 °F

    Severe
    Thunderstorms

  • Thursday

    Thursday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 2pm, then a chance of showers and thunderstorms after 2pm.  Mostly cloudy, with a high near 86. South wind 5 to 9 mph becoming west in the afternoon.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am.  Mostly cloudy, with a low around 70. West wind 6 to 8 mph.  Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 85. Chance of precipitation is 30%.

    High: 85 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 8pm.  Mostly cloudy, with a low around 62. Chance of precipitation is 30%.

    Low: 62 °F

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

Detailed Forecast

Tonight
A chance of showers and thunderstorms, mainly before 11pm. Some of the storms could be severe. Mostly cloudy, with a low around 70. West wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers and thunderstorms, mainly after 10am. Some of the storms could be severe. Mostly cloudy, with a high near 81. Southeast wind 5 to 8 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms before 11pm, then showers likely and possibly a thunderstorm between 11pm and midnight, then a chance of showers and thunderstorms after midnight. Some of the storms could be severe. Mostly cloudy, with a low around 69. South wind 6 to 9 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 86. South wind 5 to 9 mph becoming west in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 70. West wind 6 to 8 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 59.
Sunday
Sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 59.
Labor Day
Mostly sunny, with a high near 80.
Monday Night
Partly cloudy, with a low around 60.
Tuesday
Partly sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
Cornwall PA
 40.27°N 76.41°W (Elev. 633 ft)
6:16 pm EDT Sep 1, 2026
7pm EDT Sep 1, 2026-6pm EDT Sep 8, 2026
 
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Additional Resources

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