Monitoring Tsunami Impacts Across the Pacific; Air Quality Concerns; Dangerous Heat; Critical Fire Weather for the West

Tsunami impacts continue for portions of the Pacific basin. Wildfire smoke causes unhealthy air in Midwest to Great Lakes. Heat dome spans Mississippi Valley to Mid-Atlantic with excessive heat warnings and advisories. Critical fire weather in Great Basin to Pacific Northwest (dry thunderstorms). Cold front spawns severe storms/heavy rain in Central U.S. today, shifts to East Coast Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Washington/Reagan National Airport, DC (KDCA)

Lat: 38.85°NLon: 77.03°WElev: 13ft.

A Few Clouds

92°F

33°C

Humidity	56%
Wind Speed	S 10 mph
Barometer	29.97 in (1014.8 mb)
Dewpoint	74°F (23°C)
Visibility	10.00 mi
Heat Index	102°F (39°C)
Last update	30 Jul 2:52 pm EDT

More Information:

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

Extended Forecast for

Washington DC

Flood Watch July 31, 02:00pm until August 1, 02:00am

Heat Advisory until July 30, 08:00pm

Click here for hazard details and duration

Flood Watch

Heat Advisory

Heat Advisory until July 30, 08:00pm
NOW until 8:00pm Wed
Heat Advisory
This Afternoon
High: 98 °F
Hot
Tonight
Low: 78 °F
Partly Cloudy
Thursday
High: 95 °F
Mostly Sunny
then T-storms
Likely
Thursday Night
Low: 71 °F
T-storms then
Showers
Friday
High: 79 °F
Chance
Showers then
Chance
T-storms
Friday Night
Low: 65 °F
Chance
T-storms then
Slight Chance
Showers
Saturday
High: 82 °F
Mostly Sunny
Saturday Night
Low: 63 °F
Mostly Clear

Detailed Forecast

This Afternoon

Sunny and hot, with a high near 98. Heat index values as high as 106. South wind around 6 mph.

Tonight

Partly cloudy, with a low around 78. South wind around 5 mph becoming calm in the evening.

Thursday

A slight chance of showers, then showers and thunderstorms likely after 2pm. Increasing clouds, with a high near 95. Heat index values as high as 105. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday Night

Showers and thunderstorms likely before 7pm, then showers and possibly a thunderstorm between 7pm and 2am, then a chance of showers and thunderstorms after 2am. Low around 71. Southeast wind around 6 mph becoming light and variable in the evening. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Friday

A chance of showers and thunderstorms. Mostly cloudy, with a high near 79. North wind 6 to 10 mph. Chance of precipitation is 50%.

Friday Night

A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.

Saturday

Mostly sunny, with a high near 82.

Saturday Night

Mostly clear, with a low around 63.

Sunday

Mostly sunny, with a high near 83.

Sunday Night

Partly cloudy, with a low around 64.

Monday

Mostly sunny, with a high near 85.

Monday Night

Partly cloudy, with a low around 66.