Severe Thunderstorms and Heavy Rainfall; Typhoon Watch in Guam and CNMI

Heavy to excessive rainfall will continue through tonight from the Texas Big Bend region into southern Oklahoma. Scattered damaging wind gusts and a few tornadoes may accompany a line of severe thunderstorms that is expected across the Mid-Atlantic into New England Friday. A Typhoon Watch continues for Guam and CNMI as Tropical Storm Champi will strengthen and approach the islands this weekend. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fog/Mist

61°F

16°C

Humidity	NA
Wind Speed	S 8 mph
Barometer	29.97 in (1016.2 mb)
Dewpoint	N/A
Visibility	3.00 mi
Last update	16 Oct 5:56 am EDT

More Information:

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

Extended Forecast for

Clarksville MD

Today
High: 81 °F
Chance
Showers and
Patchy Fog
then Showers
Likely
Tonight
Low: 46 °F
Showers then
Chance
Showers
Saturday
High: 53 °F
Breezy.
Chance
Showers then
Mostly Sunny
Saturday Night
Low: 35 °F
Mostly Clear
Sunday
High: 56 °F
Sunny
Sunday Night
Low: 39 °F
Mostly Clear
Monday
High: 59 °F
Mostly Sunny
Monday Night
Low: 43 °F
Partly Cloudy
Tuesday
High: 64 °F
Sunny

Detailed Forecast

Today

A chance of showers and thunderstorms before 9am, then showers likely and possibly a thunderstorm after 5pm. Patchy fog before 10am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 81. Southwest wind 8 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and possibly a thunderstorm before 4am, then a chance of showers. Low around 46. Northwest wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday

A chance of showers, mainly before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 53. Breezy, with a north wind 17 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.

Saturday Night

Mostly clear, with a low around 35. North wind 7 to 10 mph, with gusts as high as 20 mph.

Sunday

Sunny, with a high near 56. Northeast wind around 6 mph.

Sunday Night

Mostly clear, with a low around 39.

Monday

Mostly sunny, with a high near 59.

Monday Night

Partly cloudy, with a low around 43.

Tuesday

Sunny, with a high near 64.