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

Heavy Rainfall Threat Continues in the Southwest on Monday; Record Warmth in the Plains and Midwest

Remnant moisture from Tropical Storm Rachel will persist over portions of the Great Basin and Southwest on Monday, bringing a potential heavy to excessive rainfall risk. Well above average and potentially record breaking temperatures will develop across the Plains and Midwest early this week, spreading into the Lower Mississippi Valley and Southeast midweek. Read More >

Current conditions at

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

A Few Clouds

64°F

18°C

Humidity 100%
Wind Speed Calm
Barometer 29.91 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 12 Oct 8:15 pm EDT
Extended Forecast for

Charlestown MD

  • Tonight

    Tonight: Mostly clear, with a low around 54. Calm wind.

    Low: 54 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 77. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 65. Southwest wind 3 to 6 mph.

    Low: 65 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 83. West wind 3 to 7 mph.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers before 2am. Mostly cloudy, with a low around 59. Light and variable wind. Chance of precipitation is 20%.

    Low: 59 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.

    Low: 57 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Friday

    Friday: Showers likely and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers likely after 2pm. Mostly cloudy, with a high near 75. Chance of precipitation is 60%.

    High: 75 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely before 8pm. Partly cloudy, with a low around 46. Chance of precipitation is 60%.

    Low: 46 °F

    Showers
    Likely then
    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 54. Calm wind.
Tuesday
Sunny, with a high near 77. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Tuesday Night
Clear, with a low around 65. Southwest wind 3 to 6 mph.
Wednesday
Sunny, with a high near 83. West wind 3 to 7 mph.
Wednesday Night
A slight chance of showers before 2am. Mostly cloudy, with a low around 59. Light and variable wind. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 70.
Thursday Night
A slight chance of showers, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Friday
Showers likely and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers likely after 2pm. Mostly cloudy, with a high near 75. Chance of precipitation is 60%.
Friday Night
Showers likely before 8pm. Partly cloudy, with a low around 46. Chance of precipitation is 60%.
Saturday
Sunny, with a high near 56.
Saturday Night
Mostly clear, with a low around 39.
Sunday
Sunny, with a high near 59.
Sunday Night
Mostly clear, with a low around 43.
Monday
Sunny, with a high near 64.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Charlestown MD
 39.58°N 75.98°W (Elev. 26 ft)
Last Update:
7:53 pm EDT Oct 12, 2026
Forecast Valid:
8pm EDT Oct 12, 2026-6pm EDT Oct 19, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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