Moke Impacts Hawaii; Severe Thunderstorms and Heavy Rainfall from the Great Basin to the Plains

Heavy rain from Tropical Storm Moke will begin to impact the Big Island today, risking life-threatening flooding and mudslides in windward and southeast areas. Severe thunderstorms are expected across the northern Rockies/Plains and northern Great Basin. Repeated storms and heavy rainfall may cause flash flooding from the Plains into the Lower MS Valley. Dangerous heat persists across the South. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

A Few Clouds

77°F

25°C

Humidity	42%
Wind Speed	W 5 mph
Barometer	29.90 in (1012.3 mb)
Dewpoint	52°F (11°C)
Visibility	10.00 mi
Heat Index	78°F (26°C)
Last update	23 Aug 7:52 pm EDT

More Information:

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

Extended Forecast for

4 Miles NNW Haymarket VA

Tonight
Low: 59 °F
Mostly Clear
Monday
High: 83 °F
Sunny
Monday Night
Low: 59 °F
Mostly Clear
Tuesday
High: 84 °F
Sunny
Tuesday Night
Low: 62 °F
Mostly Clear
Wednesday
High: 86 °F
Mostly Sunny
Wednesday Night
Low: 68 °F
Chance
Showers
Thursday
High: 87 °F
Slight Chance
T-storms then
Showers
Likely
Thursday Night
Low: 68 °F
Showers
Likely

Detailed Forecast

Tonight

Mostly clear, with a low around 59. West wind around 5 mph becoming calm after midnight.

Monday

Sunny, with a high near 83. West wind 3 to 8 mph.

Monday Night

Mostly clear, with a low around 59. Northwest wind 3 to 6 mph.

Tuesday

Sunny, with a high near 84. Northwest wind 5 to 7 mph.

Tuesday Night

Mostly clear, with a low around 62. Calm wind.

Wednesday

Mostly sunny, with a high near 86.

Wednesday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.

Thursday

A slight chance of showers before 8am, then a slight chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 60%.

Thursday Night

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.

Friday

Mostly sunny, with a high near 87.

Friday Night

Partly cloudy, with a low around 68.

Saturday

Mostly sunny, with a high near 85.

Saturday Night

Partly cloudy, with a low around 67.

Sunday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 85. Chance of precipitation is 20%.