Showers and Storms in the East; Dangerously Hot and Dry in the West

Scattered showers and storms are expected across portions of the Central and Eastern U.S. through the end of the week. Meanwhile, dangerous heat will intensify across the Desert Southwest and Intermountain West. Hot, dry weather and increasing winds will allow elevated wildfire conditions to return to the northern Intermountain West, where air quality issues persist from ongoing fires. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Mostly Cloudy

89°F

32°C

Humidity	59%
Wind Speed	S 12 G 16 mph
Barometer	30.00 in (1015.4 mb)
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Heat Index	97°F (36°C)
Last update	8 Aug 4:52 pm EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Great Falls VA

This Afternoon
High: 92 °F
Severe
Thunderstorms
Tonight
Low: 72 °F
Partly Cloudy
Sunday
High: 91 °F
Mostly Sunny
Sunday Night
Low: 71 °F
Mostly Clear
Monday
High: 93 °F
Sunny then
Slight Chance
T-storms
Monday Night
Low: 73 °F
Slight Chance
T-storms then
Slight Chance
Showers
Tuesday
High: 90 °F
Mostly Sunny
then Showers
Likely
Tuesday Night
Low: 71 °F
Showers
Likely then
Chance
T-storms
Wednesday
High: 87 °F
Partly Sunny
then Chance
T-storms

Detailed Forecast

This Afternoon

A chance of showers and thunderstorms. Some of the storms could be severe. Partly sunny, with a high near 92. Southwest wind around 7 mph. Chance of precipitation is 30%.

Tonight

Partly cloudy, with a low around 72. South wind around 5 mph becoming calm in the evening.

Sunday

Mostly sunny, with a high near 91. West wind 3 to 7 mph.

Sunday Night

Mostly clear, with a low around 71. Calm wind.

Monday

A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 93. Calm wind becoming southwest 5 to 8 mph in the afternoon. Chance of precipitation is 20%.

Monday Night

A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 73. Chance of precipitation is 20%.

Tuesday

Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 60%.

Tuesday Night

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.

Wednesday

A slight chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 40%.

Wednesday 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 after 2am. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.

Thursday

A chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 30%.

Thursday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.

Friday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84. Chance of precipitation is 20%.

Friday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 66. Chance of precipitation is 20%.

Saturday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 82.