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

Dangerous Heat in the East; Critical Fire Weather in the Southwest

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Heat is likely to continue across the eastern U.S. through the Independence Day holiday weekend. Critical fire weather conditions will continue today and likely Tuesday across portions of the Four Corners and northern High Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Lancaster, Lancaster Airport (KLNS)

Lat: 40.12°NLon: 76.29°WElev: 397ft.

Mostly Cloudy

87°F

31°C

Humidity 45%
Wind Speed S 10 mph
Barometer 30.08 in (1018.4 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 29 Jun 4:53 pm EDT
Extended Forecast for

Lampeter PA

Extreme Heat Watch July 1, 12:00pm until July 3, 08:00pm
Click here for hazard details and duration
Extreme Heat Watch

  • Tonight

    Tonight: Mostly clear, with a low around 66. South wind around 5 mph becoming calm after midnight.

    Low: 66 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90. Light southwest wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 90 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 70. South wind 7 to 10 mph.

    Low: 70 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 96. Heat index values as high as 106. Southwest wind 5 to 8 mph.

    High: 96 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 75. South wind 3 to 8 mph.

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 100.

    High: 100 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 77.

    Low: 77 °F

    Clear

  • Friday

    Friday: A chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 103. Chance of precipitation is 30%.

    High: 103 °F

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 75. Chance of precipitation is 30%.

    Low: 75 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 66. South wind around 5 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 90. Light southwest wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 70. South wind 7 to 10 mph.
Wednesday
Sunny and hot, with a high near 96. Heat index values as high as 106. Southwest wind 5 to 8 mph.
Wednesday Night
Mostly clear, with a low around 75. South wind 3 to 8 mph.
Thursday
Sunny and hot, with a high near 100.
Thursday Night
Clear, with a low around 77.
Friday
A chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 103. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 75. Chance of precipitation is 30%.
Independence Day
Showers likely and possibly a thunderstorm after 2pm. Mostly sunny and hot, with a high near 100. Chance of precipitation is 60%.
Saturday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.
Sunday
A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 95. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.
Monday
A chance of showers and thunderstorms. Partly sunny and hot, with a high near 93. Chance of precipitation is 50%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lampeter PA
 40.03°N 76.25°W (Elev. 318 ft)
Last Update:
2:21 pm EDT Jun 29, 2026
Forecast Valid:
5pm EDT Jun 29, 2026-6pm EDT Jul 6, 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