Severe Thunderstorms Likely in the Central U.S.; Flooding Possible for portions of Oklahoma/Texas/Arkansas and the Marianas.

Severe thunderstorms are likely from the southern Plains to the Midwest through Friday. Large hail, damaging winds, and tornadoes are all possible. An Enhanced (level 3 of 5) risk is in effect. Flash flooding is possible across portions of Oklahoma, Texas, and Arkansas on Friday. A Slight (level 2 of 4) risk is in effect. Flooding rain may impact Guam and the Marianas through next week. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

55°F

13°C

Humidity	96%
Wind Speed	E 5 mph
Barometer	30.13 in (1021.9 mb)
Dewpoint	54°F (12°C)
Visibility	7.00 mi
Wind Chill	54°F (12°C)
Last update	5 Mar 4:56 pm EST

More Information:

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

Extended Forecast for

Derwood MD

This Afternoon
High: 57 °F
Scattered
Showers
Tonight
Low: 44 °F
Showers
Likely and
Patchy Fog
Friday
High: 53 °F
Patchy Fog
then Isolated
Showers
Friday Night
Low: 43 °F
Scattered
Showers and
Patchy Fog
Saturday
High: 72 °F
Chance
Showers and
Patchy Fog
Saturday Night
Low: 58 °F
Showers
Likely
Sunday
High: 68 °F
Mostly Cloudy
then Chance
Showers
Sunday Night
Low: 50 °F
Partly Cloudy
Monday
High: 72 °F
Mostly Sunny

Detailed Forecast

This Afternoon

Scattered showers and thunderstorms. Partly sunny, with a high near 57. East wind around 6 mph. Chance of precipitation is 30%.

Tonight

Showers and thunderstorms likely before 1am, then scattered showers between 1am and 3am. Patchy fog after 7pm. Otherwise, cloudy, with a low around 44. East wind around 6 mph becoming calm after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday

Isolated showers after 4pm. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 53. East wind 3 to 7 mph. Chance of precipitation is 20%.

Friday Night

Scattered showers, mainly after 7pm. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 43. Southeast wind 5 to 7 mph. Chance of precipitation is 30%.

Saturday

A chance of showers before 7am, then a chance of showers after 1pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 72. Light southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 40%.

Saturday Night

Showers likely, mainly before 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.

Sunday

A chance of showers after 1pm. Partly sunny, with a high near 68. Chance of precipitation is 30%.

Sunday Night

Partly cloudy, with a low around 50.

Monday

Mostly sunny, with a high near 72.

Monday Night

Mostly clear, with a low around 54.

Tuesday

Mostly sunny, with a high near 78.