National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Fair

80°F

27°C

Humidity 64%
Wind Speed S 6 mph
Barometer 30.10 in (1019.0 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 22 Jun 12:52 am EDT
Extended Forecast for

2 Miles WSW Great Falls VA

Heat Advisory June 22, 11:00am until June 22, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Mostly clear, with a low around 73. South wind around 5 mph.

    Low: 73 °F

    Mostly Clear

  • Saturday

    Saturday: Isolated showers and thunderstorms after 2pm. Sunny and hot, with a high near 100. Heat index values as high as 107. Southwest wind 3 to 6 mph. Chance of precipitation is 20%.

    High: 100 °F

    Sunny then
    Isolated
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 78. South wind 5 to 7 mph.

    Low: 78 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 103. Southwest wind 6 to 9 mph. Chance of precipitation is 40%.

    High: 97 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 74. Southwest wind around 7 mph. Chance of precipitation is 60%.

    Low: 74 °F

    Showers
    Likely

  • Monday

    Monday: A chance of showers and thunderstorms, mainly after 2pm. Sunny, with a high near 91. Chance of precipitation is 30%.

    High: 91 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers before 8pm. Mostly clear, with a low around 69. Chance of precipitation is 30%.

    Low: 69 °F

    Chance
    Showers then
    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 73. South wind around 5 mph.
Saturday
Isolated showers and thunderstorms after 2pm. Sunny and hot, with a high near 100. Heat index values as high as 107. Southwest wind 3 to 6 mph. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 78. South wind 5 to 7 mph.
Sunday
A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 103. Southwest wind 6 to 9 mph. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 74. Southwest wind around 7 mph. Chance of precipitation is 60%.
Monday
A chance of showers and thunderstorms, mainly after 2pm. Sunny, with a high near 91. Chance of precipitation is 30%.
Monday Night
A chance of showers before 8pm. Mostly clear, with a low around 69. Chance of precipitation is 30%.
Tuesday
Sunny, with a high near 90.
Tuesday Night
Partly cloudy, with a low around 71.
Wednesday
A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 97. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 50%.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 30%.
Thursday Night
A chance of thunderstorms. Mostly clear, with a low around 68. Chance of precipitation is 30%.
Friday
Sunny, with a high near 88.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Great Falls VA
 39.01°N 77.32°W (Elev. 348 ft)
Last Update:
1:30 am EDT Jun 22, 2024
Forecast Valid:
1am EDT Jun 22, 2024-6pm EDT Jun 28, 2024
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation