Severe Thunderstorm and Flash Flood Threats Continue into the Weekend

Severe thunderstorms are expected from the southern Plains to the Midwest through Friday night. Severe storm hazards may include large hail, severe winds, and tornadoes, some of which may be strong. There will be another chance for severe thunderstorms on Saturday for portions of Texas, the Lower Mississippi Valley, and the Ohio Valley. Storms could result in locally heavy rain and flash flooding. 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 with Haze

43°F

6°C

Humidity	NA
Wind Speed	SE 6 mph
Barometer	30.34 in (1029.1 mb)
Dewpoint	N/A
Visibility	5.00 mi
Wind Chill	39°F (4°C)
Last update	6 Mar 11:56 pm EST

More Information:

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

Extended Forecast for

Olney MD

Overnight
Low: 41 °F
Slight Chance
Showers and
Areas Fog
Saturday
High: 65 °F
Dense Fog
Saturday Night
Low: 62 °F
Showers
Likely
Sunday
High: 69 °F
Chance
Showers
Sunday Night
Low: 44 °F
Partly Cloudy
Monday
High: 71 °F
Sunny
Monday Night
Low: 50 °F
Clear
Tuesday
High: 76 °F
Sunny
Tuesday Night
Low: 58 °F
Partly Cloudy
then Chance
Rain

Detailed Forecast

Overnight

A slight chance of showers between 3am and 4am. Areas of fog. Otherwise, cloudy, with a low around 41. Southeast wind around 6 mph. Chance of precipitation is 20%.

Saturday

Widespread dense fog, mainly before 10am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 65. Light southeast wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 18 mph.

Saturday Night

Showers likely, mainly between 7pm and 1am. Mostly cloudy, with a low around 62. Southwest wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Sunday

A chance of showers. Mostly cloudy, with a high near 69. West wind 8 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 40%.

Sunday Night

Partly cloudy, with a low around 44. Northwest wind around 5 mph becoming calm in the evening.

Monday

Sunny, with a high near 71.

Monday Night

Clear, with a low around 50.

Tuesday

Sunny, with a high near 76.

Tuesday Night

A chance of rain after 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 30%.