Hazardous Weather Conditions
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 Index | 82°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
NOW until 12:00am Wed

Severe T-storm Watch
Tonight

Low: 70 °F
Severe
ThunderstormsWednesday

High: 81 °F
Severe
ThunderstormsWednesday Night

Low: 69 °F
Severe
ThunderstormsThursday
High: 86 °F
Chance
Showers then
Chance
T-stormsThursday Night
Low: 70 °F
Chance
T-storms then
Chance
ShowersFriday
High: 85 °F
Mostly Sunny
then Chance
T-stormsFriday Night
Low: 62 °F
Chance
T-storms then
Partly CloudySaturday

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.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Cornwall PA
40.27°N 76.41°W (Elev. 633 ft)
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



