Severe Weather and Heavy Rainfall from the Midwest to the Ohio Valley; Mid-Summer Heat Continues

Severe thunderstorm and heavy rainfall threats will persist from the Midwest to Lower Great Lakes through Monday, shifting into the Ohio Valley and Central Appalachians Monday evening into Tuesday. Mid-summer heat will continue across much of the CONUS this week, with record highs possible well into the 100s across the south-central High Plains. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Fair

74°F

23°C

Humidity	91%
Wind Speed	Calm
Barometer	30.03 in (1016.5 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Last update	10 Aug 2:52 am EDT

More Information:

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

Extended Forecast for

2 Miles ESE Great Falls VA

Overnight
Low: 72 °F
Mostly Clear
Monday
High: 92 °F
Sunny then
Chance
T-storms
Monday Night
Low: 74 °F
Chance
T-storms then
Slight Chance
Showers
Tuesday
High: 89 °F
Partly Sunny
then Chance
T-storms
Tuesday Night
Low: 70 °F
Showers
Likely
Wednesday
High: 87 °F
Chance
Showers then
Slight Chance
T-storms
Wednesday Night
Low: 72 °F
Chance
Showers
Thursday
High: 88 °F
Mostly Sunny
then Slight
Chance
T-storms
Thursday Night
Low: 71 °F
Slight Chance
T-storms

Detailed Forecast

Overnight

Mostly clear, with a low around 72. Calm wind.

Monday

A chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 92. Calm wind becoming southwest 5 to 8 mph in the afternoon. Chance of precipitation is 30%.

Monday Night

A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Mostly cloudy, with a low around 74. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

Tuesday

A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 89. Northwest wind 3 to 8 mph. Chance of precipitation is 30%.

Tuesday Night

Showers and thunderstorms likely. Mostly cloudy, with a low around 70. Light west wind. Chance of precipitation is 60%.

Wednesday

A chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 30%.

Wednesday Night

A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.

Thursday

A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Chance of precipitation is 20%.

Thursday Night

A slight chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 20%.

Friday

A slight chance of showers between 8am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. 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

Mostly sunny, with a high near 84.

Saturday Night

A chance of showers. Partly cloudy, with a low around 67. Chance of precipitation is 30%.

Sunday

A chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 30%.