Hot temperatures across the west; southeast

Heat and humidity will impact the southeast early this week. Heat indices over 100 degrees are expected from the Texas Gulf Coast to the Florida Panhandle, into the lower Mississippi Valley and portions of Alabama and Georgia. Excessive heat will return to the Desert Southwest Monday and persist through the week. Temperatures over 100 will also expand to the Intermountain West.
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Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Mostly Cloudy

71°F

22°C

Humidity 79%
Wind Speed SW 9 mph
Barometer 30.10 in (1018.9 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 27 Jun 8:52 am EDT
Extended Forecast for

Fairfax VA

  • Today

    Today: Scattered showers and thunderstorms after 3pm.  Partly sunny, with a high near 86. South wind 7 to 9 mph.  Chance of precipitation is 30%.

    Mostly Sunny
    then
    Scattered
    T-storms

    High: 86 °F

  • Tonight

    Tonight: Showers and thunderstorms likely before 3am, then scattered showers.  Mostly cloudy, with a low around 70. Southeast wind around 6 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    T-storms
    Likely then
    Scattered
    Showers

    Low: 70 °F

  • Tuesday

    Tuesday: A slight chance of showers, with thunderstorms also possible after noon.  Partly sunny, with a high near 87. Southwest wind 3 to 6 mph.  Chance of precipitation is 20%.

    Slight Chance
    Showers then
    Slight Chance
    T-storms

    High: 87 °F

  • Tuesday
    Night

    Tuesday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers.  Mostly cloudy, with a low around 67. Southwest wind around 6 mph becoming northwest after midnight.  Chance of precipitation is 30%.

    Chance
    T-storms then
    Slight Chance
    Showers

    Low: 67 °F

  • Wednesday

    Wednesday: Mostly sunny, with a high near 83. Northwest wind 6 to 8 mph.

    Mostly Sunny

    High: 83 °F

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 64.

    Mostly Clear

    Low: 64 °F

  • Thursday

    Thursday: Mostly sunny, with a high near 84.

    Mostly Sunny

    High: 84 °F

  • Thursday
    Night

    Thursday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 68. Chance of precipitation is 30%.

    Chance
    T-storms

    Low: 68 °F

  • Friday

    Friday: A chance of showers and thunderstorms.  Partly sunny, with a high near 86. Chance of precipitation is 40%.

    Chance
    T-storms

    High: 86 °F

Detailed Forecast

Today
Scattered showers and thunderstorms after 3pm. Partly sunny, with a high near 86. South wind 7 to 9 mph. Chance of precipitation is 30%.
Tonight
Showers and thunderstorms likely before 3am, then scattered showers. Mostly cloudy, with a low around 70. Southeast wind around 6 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
A slight chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 87. Southwest wind 3 to 6 mph. Chance of precipitation is 20%.
Tuesday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 67. Southwest wind around 6 mph becoming northwest after midnight. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 83. Northwest wind 6 to 8 mph.
Wednesday Night
Mostly clear, with a low around 64.
Thursday
Mostly sunny, with a high near 84.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 68. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 68. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 86.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 30%.
Click Map For Forecast
Point Forecast:
Fairfax VA
 38.85°N 77.29°W (Elev. 400 ft)
7:27 am EDT Jun 27, 2016
9am EDT Jun 27, 2016-6pm EDT Jul 3, 2016
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database