Dangerous Heat Builds and Expands; Critical Fire Weather for the Southwest; Severe Thunderstorms for Plains and Midwest

Dangerous to record breaking heat will build across the center of the nation and slowly build eastward this week. Wildfire conditions remain critical for the Southwest and portions of the Great Basin through Monday. For the northern Plains and upper Midwest, severe thunderstorms with the potential for large to very large hail and severe winds are the primary hazards. Read More >

Current conditions at

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

Fog/Mist

70°F

21°C

Humidity 93%
Wind Speed E 3 mph
Barometer 30.03 in (1017.4 mb)
Dewpoint 68°F (20°C)
Visibility 6.00 mi
Last update 29 Jun 2:53 am EDT
Extended Forecast for

Waynesboro PA

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

    Overnight: Patchy fog.  Otherwise, partly cloudy, with a low around 65. Calm wind.

    Low: 65 °F

    Patchy Fog

  • Monday

    Monday: A chance of showers and thunderstorms, mainly before 2pm.  Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 86. Light and variable wind.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Slight Chance
    T-storms and
    Patchy Fog
    then Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89. South wind 5 to 9 mph.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 71. South wind around 6 mph.

    Low: 71 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 96.

    High: 96 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 98.

    High: 98 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 76.

    Low: 76 °F

    Clear

Detailed Forecast

Overnight
Patchy fog. Otherwise, partly cloudy, with a low around 65. Calm wind.
Monday
A chance of showers and thunderstorms, mainly before 2pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 86. Light and variable wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
Mostly clear, with a low around 67. Calm wind.
Tuesday
Sunny, with a high near 89. South wind 5 to 9 mph.
Tuesday Night
Mostly clear, with a low around 71. South wind around 6 mph.
Wednesday
Sunny and hot, with a high near 96.
Wednesday Night
Mostly clear, with a low around 75.
Thursday
Sunny and hot, with a high near 98.
Thursday Night
Clear, with a low around 76.
Friday
Sunny and hot, with a high near 101.
Friday Night
Partly cloudy, with a low around 76.
Independence Day
A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 97. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 93. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Waynesboro PA
 39.75°N 77.6°W (Elev. 696 ft)
3:21 am EDT Jun 29, 2026
3am EDT Jun 29, 2026-6pm EDT Jul 5, 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