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Hot weather continues for the Pacific Northwest and Great Basin; monsoonal moisture establishing over the Southwest

Across the western U.S., excessive heat will continue with widespread 100-plus degree temperatures for the lower elevations of Washington, Oregon, Idaho, Nevada, and California through midweek. Across the Desert Southwest, normal hot temperatures will be present through the week. Increasing moisture from the monsoon will make it feel more humid as well as aid in thunderstorm development.
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Hazardous Weather Conditions

Current conditions at

Washington DC, Reagan National Airport (KDCA)

Lat: 38.85°NLon: 77.03°WElev: 13ft.

Mostly Cloudy

76°F

24°C

Humidity 82%
Wind Speed S 8 mph
Barometer 29.92 in (1013.0 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 30 Jun 7:52 am EDT
Extended Forecast for

Mount Vernon VA

  • Today

    Isolated Thunderstorms Chance for Measurable Precipitation 20%

    Isolated
    Thunderstorms

    High: 88 °F

  • Tonight

    Scattered Thunderstorms Chance for Measurable Precipitation 50%

    Scattered
    Thunderstorms

    Low: 70 °F

  • Wednesday

    Chance Thunderstorms Chance for Measurable Precipitation 30%

    Chance
    Thunderstorms

    High: 88 °F

  • Wednesday
    Night

    Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

    Slight Chc
    Thunderstorms

    Low: 68 °F

  • Thursday

    Chance Thunderstorms Chance for Measurable Precipitation 50%

    Chance
    Thunderstorms

    High: 84 °F

  • Thursday
    Night

    Chance Thunderstorms Chance for Measurable Precipitation 50%

    Chance
    Thunderstorms

    Low: 68 °F

  • Friday

    Chance Thunderstorms Chance for Measurable Precipitation 30%

    Chance
    Thunderstorms

    High: 82 °F

  • Friday
    Night

    Chance Thunderstorms Chance for Measurable Precipitation 30%

    Chance
    Thunderstorms

    Low: 70 °F

  • Independence
    Day

    Chance Thunderstorms Chance for Measurable Precipitation 50%

    Chance
    Thunderstorms

    High: 84 °F

Detailed Forecast

Today
Isolated showers and thunderstorms after noon. Partly sunny, with a high near 88. South wind 8 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Tonight
Scattered showers and thunderstorms, mainly before 3am. Mostly cloudy, with a low around 70. South wind 3 to 8 mph. Chance of precipitation is 50%.
Wednesday
A chance of showers and thunderstorms, mainly after noon. Partly sunny, with a high near 88. West wind 5 to 7 mph. Chance of precipitation is 30%.
Wednesday Night
A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 68. West wind 3 to 5 mph. Chance of precipitation is 20%.
Thursday
A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 84. Northwest wind around 6 mph becoming southwest in the afternoon. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 50%.
Friday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 82. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.
Independence Day
A chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 50%.
Saturday Night
Mostly cloudy, with a low around 70.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
Sunday Night
Mostly cloudy, with a low around 70.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 30%.
  Click Map For Forecast
Point Forecast:
Mount Vernon VA
 38.72°N 77.08°W (Elev. 13 ft)
7:37 am EDT Jun 30, 2015
9am EDT Jun 30, 2015-6pm EDT Jul 6, 2015
 
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