Severe Thunderstorm and Excessive Rainfall Potential for the Central U.S. Today

Severe thunderstorms with a threat for large hail, isolated damaging winds and possibly a tornado are expected in parts of eastern Colorado today from mid afternoon to early evening. Several days of heavy rainfall will begin today over the western Gulf Coast where Flood Watches and excessive rainfall outlooks have been issued for today, Saturday, and Sunday. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Light Rain

56°F

13°C

Humidity	100%
Wind Speed	Calm
Barometer	30.23 in (1025.2 mb)
Dewpoint	56°F (13°C)
Visibility	10.00 mi
Last update	21 May 5:56 pm EDT

More Information:

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

Extended Forecast for

4 Miles W North Potomac MD

Tonight
Low: 53 °F
Showers then
Showers
Likely
Friday
High: 59 °F
Showers
Friday Night
Low: 50 °F
Showers
Saturday
High: 59 °F
Showers
Saturday Night
Low: 53 °F
Showers
Sunday
High: 72 °F
Showers
Likely then
Slight Chance
T-storms
Sunday Night
Low: 59 °F
Chance
Showers
Memorial Day
High: 71 °F
Showers
Likely
Monday Night
Low: 61 °F
Showers
Likely

Detailed Forecast

Tonight

Showers, mainly before 4am. Low around 53. Northeast wind 3 to 8 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday

Showers, mainly after 10am. High near 59. East wind 7 to 9 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday Night

Showers. Low around 50. East wind 7 to 9 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Saturday

Showers, with thunderstorms also possible after 5pm. High near 59. East wind 8 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Saturday Night

Showers and possibly a thunderstorm. Low around 53. East wind 5 to 10 mph becoming light northeast after midnight. Chance of precipitation is 90%.

Sunday

Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 72. Chance of precipitation is 60%.

Sunday Night

A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 50%.

Memorial Day

A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 71. Chance of precipitation is 60%.

Monday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.

Tuesday

A chance of showers. Mostly cloudy, with a high near 74. Chance of precipitation is 50%.