Heat Wave Expands to the East Coast; Flash Flooding Likely in the Central Plains into the Midwest; Severe Thunderstorms in the Northeast

Dangerous, prolonged heat is ongoing in the Mid-South to Mid-Mississippi Valley and heat expands into the Northeast for a brief period today. Widely scattered instances of flash flooding due to heavy rains are forecast from northeast Kansas to much of Indiana. Scattered strong to severe thunderstorms are possible across parts of New England, northern Mid-Atlantic, and North Dakota. Read More >

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Mostly Cloudy

81°F

27°C

Humidity 77%
Wind Speed S 6 mph
Barometer 29.99 in (1015.2 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 25 Jul 7:52 pm EDT
Extended Forecast for

2 Miles ESE Great Falls VA

  • Tonight

    Tonight: Scattered showers and thunderstorms before 11pm.  Partly cloudy, with a low around 76. West wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 40%.

    Low: 76 °F

    Scattered
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms, mainly after 5pm.  Mostly sunny, with a high near 94. Heat index values as high as 101. Light and variable wind.  Chance of precipitation is 30%.

    High: 94 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday 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 75. Light southeast wind.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 75 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm.  Mostly cloudy, with a high near 92. Heat index values as high as 102. Calm wind becoming west around 6 mph in the afternoon.  Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 92 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am.  Partly cloudy, with a low around 75. Light northwest wind.  Chance of precipitation is 60%.

    Low: 75 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Monday

    Monday: A slight chance of showers after 2pm.  Mostly sunny, with a high near 92. Chance of precipitation is 20%.

    High: 92 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 96.

    High: 96 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

Detailed Forecast

Tonight
Scattered showers and thunderstorms before 11pm. Partly cloudy, with a low around 76. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Saturday
A chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 94. Heat index values as high as 101. Light and variable wind. Chance of precipitation is 30%.
Saturday 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 75. Light southeast wind. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 92. Heat index values as high as 102. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 75. Light northwest wind. Chance of precipitation is 60%.
Monday
A slight chance of showers after 2pm. Mostly sunny, with a high near 92. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 75.
Tuesday
Sunny, with a high near 96.
Tuesday Night
Mostly clear, with a low around 76.
Wednesday
Mostly sunny and hot, with a high near 97.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 73. Chance of precipitation is 40%.
Thursday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 85. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Friday
A chance of showers. Partly sunny, with a high near 81. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Great Falls VA
 39°N 77.26°W (Elev. 259 ft)
7:30 pm EDT Jul 25, 2025
8pm EDT Jul 25, 2025-6pm EDT Aug 1, 2025
 
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Additional Resources

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