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

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

Fair

65°F

18°C

Humidity 60%
Wind Speed S 9 mph
Barometer 29.98 in
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 7 Oct 1:15 pm EDT
Extended Forecast for

Charlestown MD

  • Tonight

    Tonight: Clear, with a low around 57. South wind 7 to 9 mph.

    Low: 57 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 76. West wind 6 to 15 mph, with gusts as high as 20 mph.

    High: 76 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 54. Northwest wind 5 to 7 mph.

    Low: 54 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 72. Light northwest wind becoming west 5 to 9 mph in the morning.

    High: 72 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 54. Light northwest wind.

    Low: 54 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Showers after 2am. Low around 58. Chance of precipitation is 80%.

    Low: 58 °F

    Mostly Cloudy
    then Showers

  • Sunday

    Sunday: Showers, with thunderstorms also possible after 2pm. High near 68. Chance of precipitation is 100%.

    High: 68 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Cloudy, with a low around 63. Chance of precipitation is 70%.

    Low: 63 °F

    Showers
    Likely

Detailed Forecast

Tonight
Clear, with a low around 57. South wind 7 to 9 mph.
Thursday
Sunny, with a high near 76. West wind 6 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Clear, with a low around 54. Northwest wind 5 to 7 mph.
Friday
Sunny, with a high near 72. Light northwest wind becoming west 5 to 9 mph in the morning.
Friday Night
Partly cloudy, with a low around 54. Light northwest wind.
Saturday
Mostly sunny, with a high near 74.
Saturday Night
Showers after 2am. Low around 58. Chance of precipitation is 80%.
Sunday
Showers, with thunderstorms also possible after 2pm. High near 68. Chance of precipitation is 100%.
Sunday Night
Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Cloudy, with a low around 63. Chance of precipitation is 70%.
Columbus Day
A chance of showers before 8am. Mostly cloudy, with a high near 73. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 59.
Tuesday
Partly sunny, with a high near 71.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 49. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Charlestown MD
 39.58°N 75.98°W (Elev. 26 ft)
Last Update:
2:23 pm EDT Oct 7, 2026
Forecast Valid:
3pm EDT Oct 7, 2026-6pm EDT Oct 14, 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