Severe Thunderstorms in the Ohio and Tennessee Valleys; Flash Flooding Possible in the Southwest

Scattered damaging winds, isolated severe hail, and a brief tornado or two are possible from the Upper Ohio to Tennessee Valleys during the late afternoon and evening. Across the Southwest, monsoonal moisture will continue to bring heavy rain and a threat for isolated to scattered flash flooding through Saturday. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Frederick Municipal Airport (KFDK)

Lat: 39.42°NLon: 77.37°WElev: 269ft.

Mostly Cloudy

86°F

30°C

Humidity	52%
Wind Speed	Calm
Barometer	29.94 in
Dewpoint	66°F (19°C)
Visibility	10.00 mi
Heat Index	88°F (31°C)
Last update	6 Sep 1:48 pm EDT

More Information:

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

Extended Forecast for

Brownsville MD

This Afternoon
High: 84 °F
Showers
Likely
Tonight
Low: 59 °F
Chance
Showers
Sunday
High: 77 °F
Gradual
Clearing
Sunday Night
Low: 50 °F
Mostly Clear
Monday
High: 76 °F
Sunny
Monday Night
Low: 49 °F
Mostly Clear
Tuesday
High: 77 °F
Mostly Sunny
Tuesday Night
Low: 53 °F
Partly Cloudy
Wednesday
High: 78 °F
Mostly Sunny

Detailed Forecast

This Afternoon

Scattered showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then scattered showers and thunderstorms after 4pm. Mostly cloudy, with a high near 84. Northwest wind around 8 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

Scattered showers and thunderstorms. Cloudy, with a low around 59. Northwest wind around 6 mph. Chance of precipitation is 40%.

Sunday

Cloudy through mid morning, then gradual clearing, with a high near 77. Northwest wind 6 to 9 mph.

Sunday Night

Mostly clear, with a low around 50. Northwest wind around 6 mph.

Monday

Sunny, with a high near 76. Northwest wind around 6 mph becoming northeast in the afternoon.

Monday Night

Mostly clear, with a low around 49.

Tuesday

Mostly sunny, with a high near 77.