Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Central U.S. and Northeast; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Severe thunderstorms are forecast across parts of the Upper Midwest into the Great Lakes, the Northeast, and the central High Plains. Critical fire weather conditions will continue across portions of the Four Corners and Great Basin. Read More >

Current conditions at

Harrisburg, Capital City Airport (KCXY)

Lat: 40.22°NLon: 76.86°WElev: 335ft.

Fair

78°F

26°C

Humidity 69%
Wind Speed Calm
Barometer 30.02 in (1016.5 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 1 Jul 7:56 am EDT
Extended Forecast for

3 Miles W Dillsburg 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
  • Today

    Today: Sunny and hot, with a high near 96. Heat index values as high as 104. West wind 3 to 5 mph.

    High: 96 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 77. Light west wind.

    Low: 77 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 100. Heat index values as high as 104. West wind 3 to 5 mph.

    High: 100 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 78. West wind 3 to 6 mph.

    Low: 78 °F

    Clear

  • Friday

    Friday: Sunny and hot, with a high near 99. West wind 3 to 7 mph.

    High: 99 °F

    Hot

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before 2am.  Partly cloudy, with a low around 76. Chance of precipitation is 20%.

    Low: 76 °F

    Slight Chance
    T-storms

  • Independence Day

    Independence Day: A chance of showers and thunderstorms after 2pm.  Mostly sunny and hot, with a high near 96. Chance of precipitation is 30%.

    High: 96 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 2am.  Mostly cloudy, with a low around 73. Chance of precipitation is 40%.

    Low: 73 °F

    Chance
    T-storms

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm after 2pm.  Partly sunny and hot, with a high near 93. Chance of precipitation is 60%.

    High: 93 °F

    Partly Sunny
    then Showers
    Likely

Detailed Forecast

Today
Sunny and hot, with a high near 96. Heat index values as high as 104. West wind 3 to 5 mph.
Tonight
Mostly clear, with a low around 77. Light west wind.
Thursday
Sunny and hot, with a high near 100. Heat index values as high as 104. West wind 3 to 5 mph.
Thursday Night
Clear, with a low around 78. West wind 3 to 6 mph.
Friday
Sunny and hot, with a high near 99. West wind 3 to 7 mph.
Friday Night
A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 76. Chance of precipitation is 20%.
Independence Day
A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 96. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 40%.
Sunday
Showers likely and possibly a thunderstorm after 2pm. Partly sunny and hot, with a high near 93. Chance of precipitation is 60%.
Sunday Night
Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 50%.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 69. Chance of precipitation is 30%.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 85. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Dillsburg PA
 40.1°N 77.1°W (Elev. 912 ft)
8:06 am EDT Jul 1, 2026
8am EDT Jul 1, 2026-6pm EDT Jul 7, 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