Severe Weather from the Ohio Valley into the Appalachians; Tropical Storm Watch for the Florida Keys

Isolated to scattered severe thunderstorms and heavy rain are possible across portions of the Ohio and Tennessee Valleys into the Appalachians. High surf, coastal flooding and rip currents will remain a concern for most of the eastern seaboard into midweek. A Tropical Storm Watch is in effect for the Dry Tortugas & Lower Keys as the tropical disturbance moves across the northwestern Caribbean Sea. Read More >

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Colesville MD

  • Tonight

    Tonight: Scattered showers, mainly before 2am.  Cloudy, with a low around 61. East wind around 7 mph.  Chance of precipitation is 30%.

    Low: 61 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Scattered showers.  Patchy fog between 9am and noon.  Otherwise, cloudy, with a high near 69. East wind 7 to 9 mph.  Chance of precipitation is 40%.

    High: 69 °F

    Scattered
    Showers and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: Scattered showers, with thunderstorms also possible after 5am.  Cloudy, with a low around 63. East wind 6 to 8 mph.  Chance of precipitation is 50%.

    Low: 63 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 2pm, then a chance of showers and thunderstorms after 2pm.  Cloudy, with a high near 73. Southeast wind 6 to 8 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 73 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms.  Cloudy, with a low around 66. Southeast wind 3 to 6 mph.  Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers.  Mostly cloudy, with a high near 79. Chance of precipitation is 20%.

    High: 79 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 67.

    Low: 67 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 77.

    High: 77 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A chance of showers.  Mostly cloudy, with a low around 65. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    Showers

Detailed Forecast

Tonight
Scattered showers, mainly before 2am. Cloudy, with a low around 61. East wind around 7 mph. Chance of precipitation is 30%.
Tuesday
Scattered showers. Patchy fog between 9am and noon. Otherwise, cloudy, with a high near 69. East wind 7 to 9 mph. Chance of precipitation is 40%.
Tuesday Night
Scattered showers, with thunderstorms also possible after 5am. Cloudy, with a low around 63. East wind 6 to 8 mph. Chance of precipitation is 50%.
Wednesday
Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Cloudy, with a high near 73. Southeast wind 6 to 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms. Cloudy, with a low around 66. Southeast wind 3 to 6 mph. Chance of precipitation is 40%.
Thursday
A slight chance of showers. Mostly cloudy, with a high near 79. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around 67.
Friday
Mostly cloudy, with a high near 77.
Friday Night
A chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
Saturday
Mostly cloudy, with a high near 75.
Saturday Night
Mostly cloudy, with a low around 61.
Sunday
Partly sunny, with a high near 74.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 30%.
Monday
A chance of showers. Partly sunny, with a high near 72. Chance of precipitation is 30%.
Click Map For Forecast

ABOUT THIS FORECAST

 
Point Forecast:
Colesville MD
 39.09°N 77.02°W (Elev. 299 ft)
10:29 pm EDT Sep 23, 2024
11pm EDT Sep 23, 2024-6pm EDT Sep 30, 2024
 
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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