National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hurricane and Storm Surge Watches Issued for the Northern Gulf Coast for Strengthening Tropical Storm Isaias

Tropical Storm Isaias is forecast to track toward the central Gulf Coast while strengthening into a hurricane on Thursday. There is an increasing risk of damaging hurricane-force winds and life-threatening storm surge impacts along portions of the northern Gulf Coast Friday into Saturday. Isaias will bring heavy rainfall to the central Gulf Coast and much of the Southeast Friday into the weekend. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

71°F

22°C

Humidity 51%
Wind Speed S 12 mph
Barometer 29.97 in (1016.1 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 7 Oct 1:56 pm EDT
Extended Forecast for

Rossmoor MD

  • This Afternoon

    This Afternoon: Sunny, with a high near 70. South wind around 9 mph.

    High: 70 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 53. South wind 3 to 5 mph.

    Low: 53 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 76. West wind 5 to 11 mph, with gusts as high as 22 mph.

    High: 76 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 49. Northwest wind around 5 mph becoming calm in the evening.

    Low: 49 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 72. Northwest wind 3 to 6 mph.

    High: 72 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers after 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 20%.

    Low: 57 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 68. Chance of precipitation is 70%.

    High: 68 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 70. South wind around 9 mph.
Tonight
Clear, with a low around 53. South wind 3 to 5 mph.
Thursday
Sunny, with a high near 76. West wind 5 to 11 mph, with gusts as high as 22 mph.
Thursday Night
Mostly clear, with a low around 49. Northwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 72. Northwest wind 3 to 6 mph.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Mostly sunny, with a high near 72.
Saturday Night
A slight chance of showers after 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 20%.
Sunday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 68. Chance of precipitation is 70%.
Sunday Night
Showers and possibly a thunderstorm before 2am, then showers likely. Low around 60. Chance of precipitation is 80%.
Columbus Day
Showers likely. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.
Monday Night
Mostly cloudy, with a low around 57.
Tuesday
Partly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rossmoor MD
 39.12°N 77.07°W (Elev. 479 ft)
Last Update:
10:53 am EDT Oct 7, 2026
Forecast Valid:
2pm EDT Oct 7, 2026-6pm EDT Oct 13, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation