Fire Weather Concerns; Record Warmth Spreads

The Plains to the mid-Mississippi Valley continue with warm and dry conditions. Any fires that initiate could spread quickly. The warm temperatures will expand across the Southern Plains into the Southwest where numerous records are expected through the weekend. Meanwhile, a cold front will move southward across the northern Plains and Great Lakes region where some snow will develop this weekend. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

A Few Clouds

37°F

3°C

Humidity 96%
Wind Speed S 3 mph
Barometer 29.99 in (1015.5 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 1 Mar 2:52 am EST
Extended Forecast for

Herndon VA

  • Overnight

    Overnight: Mostly cloudy, with a low around 38. Light north wind.

    Low: 38 °F

    Mostly Cloudy

  • Sunday

    Sunday: Cloudy, then gradually becoming mostly sunny, with a high near 48. North wind 8 to 11 mph, with gusts as high as 20 mph.

    High: 48 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 27. Northeast wind 5 to 7 mph.

    Low: 27 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of snow after 1pm.  Partly sunny, with a high near 37. Northeast wind around 6 mph becoming southeast in the afternoon.  Chance of precipitation is 20%.

    High: 37 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Monday Night

    Monday Night: A slight chance of snow and sleet before 1am, then rain, freezing rain, and sleet likely between 1am and 4am, then rain or freezing rain likely after 4am.  Mostly cloudy, with a low around 31. Southeast wind around 7 mph.  Chance of precipitation is 60%. Little or no snow and sleet accumulation expected.

    Low: 31 °F

    Slight Chance
    Snow/Sleet
    then Wintry
    Mix Likely

  • Tuesday

    Tuesday: Rain.  High near 47. Chance of precipitation is 80%.

    High: 47 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain likely.  Cloudy, with a low around 43. Chance of precipitation is 60%.

    Low: 43 °F

    Rain Likely

  • Wednesday

    Wednesday: A chance of rain after 1pm.  Mostly cloudy, with a high near 64. Chance of precipitation is 30%.

    High: 64 °F

    Mostly Cloudy
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: A chance of rain.  Mostly cloudy, with a low around 52. Chance of precipitation is 30%.

    Low: 52 °F

    Chance Rain

Detailed Forecast

Overnight
Mostly cloudy, with a low around 38. Light north wind.
Sunday
Cloudy, then gradually becoming mostly sunny, with a high near 48. North wind 8 to 11 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 27. Northeast wind 5 to 7 mph.
Monday
A slight chance of snow after 1pm. Partly sunny, with a high near 37. Northeast wind around 6 mph becoming southeast in the afternoon. Chance of precipitation is 20%.
Monday Night
A slight chance of snow and sleet before 1am, then rain, freezing rain, and sleet likely between 1am and 4am, then rain or freezing rain likely after 4am. Mostly cloudy, with a low around 31. Southeast wind around 7 mph. Chance of precipitation is 60%. Little or no snow and sleet accumulation expected.
Tuesday
Rain. High near 47. Chance of precipitation is 80%.
Tuesday Night
Rain likely. Cloudy, with a low around 43. Chance of precipitation is 60%.
Wednesday
A chance of rain after 1pm. Mostly cloudy, with a high near 64. Chance of precipitation is 30%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 52. Chance of precipitation is 30%.
Thursday
A chance of rain. Mostly cloudy, with a high near 72. Chance of precipitation is 30%.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Friday
A chance of rain. Partly sunny, with a high near 70. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 54.
Saturday
A chance of rain. Mostly sunny, with a high near 76. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Herndon VA
 38.99°N 77.38°W (Elev. 318 ft)
12:53 am EST Mar 1, 2026
3am EST Mar 1, 2026-6pm EST Mar 7, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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