Dangerous Heat in the Central and Eastern U.S.; Critical Fire Weather in the Great Basin and 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 Tuesday across portions of the Four Corners and Great Basin, as dry conditions and gusty winds persist. Read More >

Current conditions at

York, York Airport (KTHV)

Lat: 39.92°NLon: 76.88°WElev: 479ft.

Fair

69°F

21°C

Humidity 81%
Wind Speed Calm
Barometer 30.13 in (1020.1 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 30 Jun 2:53 am EDT
Extended Forecast for

Gettysburg PA

Heat Advisory July 3, 08:00pm until July 4, 08:00pm
Extreme Heat Warning July 1, 12:00pm until July 3, 08:00pm
Click here for hazard details and duration
Heat Advisory
Extreme Heat Warning
  • Overnight

    Overnight: Mostly clear, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89. Calm wind becoming south 5 to 8 mph in the morning.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 69. South wind 3 to 5 mph.

    Low: 69 °F

    Mostly Clear

  • Wednesday

    Wednesday: Isolated showers and thunderstorms after 2pm.  Sunny and hot, with a high near 97. Heat index values as high as 107. Calm wind becoming southwest around 5 mph in the afternoon.  Chance of precipitation is 20%.

    High: 97 °F

    Sunny then
    Isolated
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 74. Calm wind.

    Low: 74 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 101.

    High: 101 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 101.

    High: 101 °F

    Hot

  • Friday Night

    Friday Night: Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 65. Calm wind.
Tuesday
Sunny, with a high near 89. Calm wind becoming south 5 to 8 mph in the morning.
Tuesday Night
Mostly clear, with a low around 69. South wind 3 to 5 mph.
Wednesday
Isolated showers and thunderstorms after 2pm. Sunny and hot, with a high near 97. Heat index values as high as 107. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 74. Calm wind.
Thursday
Sunny and hot, with a high near 101.
Thursday Night
Mostly clear, with a low around 76.
Friday
Sunny and hot, with a high near 101.
Friday Night
Partly cloudy, with a low around 74.
Independence Day
A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 97. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms. Partly sunny and hot, with a high near 93. Chance of precipitation is 50%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 40%.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Gettysburg PA
 39.82°N 77.24°W (Elev. 551 ft)
2:46 am EDT Jun 30, 2026
2am EDT Jun 30, 2026-6pm EDT Jul 6, 2026
 
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Additional Resources

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