Heavy Rainfall Threat for Portions of Mid-Atlantic and Northeast; Heat Linger for Southeast and Expands for the West

Moisture and nearby frontal boundary will focus more showers and thunderstorms for portions of the Mid-Atlantic and Northeast today. Rainfall could be locally heavy resulting instances of flash flooding. Meanwhile, the heat lingers for areas of the Southeast and expands across the Western U.S. the next several days. Between these areas, severe thunderstorms possible for the Plains and Midwest. Read More >

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17° N Lon: 77.17° W Elev: 495 ft.

Fair

83°F

28°C

Humidity	79%
Wind Speed	NE 5 mph
Barometer	29.96 in (1015.5 mb)
Dewpoint	76°F (24°C)
Visibility	10.00 mi
Heat Index	91°F (33°C)
Last update	6 Jul 5:56 pm EDT

More Information:

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

Detailed forecast for

Northwest Howard

Rest Of This Afternoon

Numerous showers and thunderstorms. Some thunderstorms may produce frequent lightning and heavy rainfall. Highs in the mid 80s. East winds around 5 mph. Chance of rain 60 percent.

Tonight

Mostly cloudy. Showers and numerous thunderstorms in the evening, then scattered showers with isolated thunderstorms after midnight. Patchy fog. Some thunderstorms may produce frequent lightning and heavy rainfall in the evening. Some thunderstorms may produce frequent lightning and heavy rainfall after midnight. Lows in the upper 60s. Northeast winds around 5 mph. Chance of rain 80 percent.

Tuesday

Mostly cloudy in the morning, then becoming partly sunny. Patchy fog in the morning. A chance of showers. A chance of thunderstorms in the afternoon. Highs in the lower 80s. Northeast winds around 5 mph. Chance of rain 50 percent.

Tuesday Night

A chance of thunderstorms in the evening. Showers likely. Lows in the mid 60s. Northeast winds around 5 mph. Chance of rain 70 percent.

Wednesday

Mostly cloudy. A chance of showers in the morning. Highs in the lower 80s. East winds around 5 mph. Chance of rain 50 percent.

Wednesday Night

Mostly cloudy with a 40 percent chance of showers. Lows in the upper 60s.

Thursday

Showers likely with a chance of thunderstorms. Highs in the mid 80s. Chance of rain 70 percent.

Thursday Night

Partly cloudy. Lows in the upper 60s.

Friday

Mostly sunny with a chance of showers and thunderstorms. Highs in the mid 80s. Chance of rain 50 percent.