River Flooding Continues in East Florida; Rain and Thunderstorms from the Mid-Atlantic to the Northeast Thursday; Heavy Rain in Puerto Rico

Significant river flooding is forecast along the St. John’s and the Peace rivers through the end of the week as flood waters will be slow to recede. Periods of rainfall and thunderstorms are expected across the Lower Great Lakes, Central Appalachians, Mid-Atlantic and Northeast Thursday and Friday. In Puerto Rico, increased moisture in the Atlantic will produce heavy rainfall for the island. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

66°F

19°C

Humidity	100%
Wind Speed	S 10 mph
Barometer	29.94 in (1014.8 mb)
Dewpoint	66°F (19°C)
Visibility	10.00 mi
Last update	5 Nov 7:56 am EST

More Information:

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

Extended Forecast for

Olney MD

Today
High: 73 °F
Isolated
T-storms then
Scattered
Showers
Tonight
Low: 58 °F
Chance
Showers
Friday
High: 68 °F
Chance
Showers then
Partly Sunny
Friday Night
Low: 47 °F
Mostly Cloudy
Saturday
High: 60 °F
Mostly Sunny
Saturday Night
Low: 41 °F
Mostly Clear
Sunday
High: 61 °F
Sunny
Sunday Night
Low: 39 °F
Mostly Clear
Monday
High: 62 °F
Sunny

Detailed Forecast

Today

Isolated showers and thunderstorms, then scattered showers after 10am. Mostly cloudy, with a high near 73. South wind 9 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.

Tonight

A chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then a chance of showers after 1am. Mostly cloudy, with a low around 58. South wind around 6 mph becoming calm in the evening. Chance of precipitation is 40%.

Friday

A chance of showers, mainly before 10am. Partly sunny, with a high near 68. North wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 40%.

Friday Night

Mostly cloudy, with a low around 47. Light north wind becoming northwest 5 to 10 mph after midnight. Winds could gust as high as 18 mph.

Saturday

Mostly sunny, with a high near 60. Northwest wind 11 to 14 mph, with gusts as high as 26 mph.

Saturday Night

Mostly clear, with a low around 41.

Sunday

Sunny, with a high near 61.

Sunday Night

Mostly clear, with a low around 39.

Monday

Sunny, with a high near 62.