Hot in Parts of the West; Cold Blast Coming to the Central U.S.

Hot to extremely hot temperatures are in place much of this week across parts of California and the interior Northwest U.S. A blast of cold air will drop across the central and eastern U.S. later this week bringing below to well below normal temperatures. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Fair

54°F

12°C

Humidity 83%
Wind Speed Calm
Barometer 30.22 in (1023.0 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 1 Sep 12:52 am EDT
Extended Forecast for

2 Miles SW Herndon VA

  • Overnight

    Overnight: Mostly clear, with a low around 52. Calm wind.

    Low: 52 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 79. North wind 5 to 10 mph becoming east in the afternoon.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 56. East wind around 6 mph becoming calm  in the evening.

    Low: 56 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 78 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 57. Light and variable wind.

    Low: 57 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of showers after 2pm.  Mostly sunny, with a high near 83. Chance of precipitation is 30%.

    High: 83 °F

    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers.  Mostly cloudy, with a low around 63. Chance of precipitation is 50%.

    Low: 63 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 52. Calm wind.
Labor Day
Sunny, with a high near 79. North wind 5 to 10 mph becoming east in the afternoon.
Monday Night
Partly cloudy, with a low around 56. East wind around 6 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 78. Calm wind becoming northeast around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 57. Light and variable wind.
Wednesday
Mostly sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 61.
Thursday
A chance of showers after 2pm. Mostly sunny, with a high near 83. Chance of precipitation is 30%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.
Friday
Mostly sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 61.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
Partly cloudy, with a low around 57.
Sunday
Sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Herndon VA
 38.95°N 77.42°W (Elev. 351 ft)
1:30 am EDT Sep 1, 2025
2am EDT Sep 1, 2025-6pm EDT Sep 7, 2025
 
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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