Extreme Heat Continues; Severe Thunderstorms into Upper Midwest; Strong Bering Sea Storm

Wildfires and poor air quality continue for the Pacific Northwest, Rockies and extended into the Plains. Severe thunderstorms possible for the northern Plains and upper Midwest on Monday along a frontal boundary. Another boundary will focus showers and thunderstorms for the eastern seaboard with localized heavy rainfall possible. For Alaska, a strong Bering Sea storm will bring winds and rainfall. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Overcast

78°F

26°C

Humidity	100%
Wind Speed	Vrbl 7 mph
Barometer	29.81 in (1010.4 mb)
Dewpoint	78°F (26°C)
Visibility	10.00 mi
Heat Index	81°F (27°C)
Last update	2 Aug 3:56 pm EDT

More Information:

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

Extended Forecast for

Dayton MD

This Afternoon
High: 79 °F
Showers
Tonight
Low: 70 °F
Showers
Monday
High: 83 °F
Chance
Showers then
Chance
T-storms
Monday Night
Low: 64 °F
Chance
T-storms then
Slight Chance
Showers
Tuesday
High: 83 °F
Partly Sunny
Tuesday Night
Low: 66 °F
Mostly Cloudy
then Slight
Chance
Showers
Wednesday
High: 84 °F
Partly Sunny
then Chance
T-storms
Wednesday Night
Low: 70 °F
Chance
T-storms then
Mostly Cloudy
Thursday
High: 87 °F
Partly Sunny
then Chance
T-storms

Detailed Forecast

This Afternoon

Showers and possibly a thunderstorm. High near 79. Southeast wind around 9 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms, mainly before 4am. Low around 70. Southeast wind around 8 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Monday

A chance of showers and thunderstorms, mainly after 2pm. Mostly cloudy, with a high near 83. Southwest wind around 6 mph. Chance of precipitation is 50%.

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 64. North wind 3 to 5 mph. Chance of precipitation is 30%.

Tuesday

Partly sunny, with a high near 83. Northeast wind around 6 mph.

Tuesday Night

A slight chance of showers after 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 20%.

Wednesday

A slight chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 30%.

Wednesday Night

A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.

Thursday

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

Thursday Night

A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 70. Chance of precipitation is 40%.

Friday

A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 50%.

Friday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.

Saturday

Showers likely and possibly a thunderstorm. Partly sunny, with a high near 86. Chance of precipitation is 60%.