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

Tropical Moisture Brings Heavy Rain to Southwest; Strong Coastal Low to Impact the East Coast

Deep tropical moisture surging into the Southwest U.S. will lead to widespread showers and thunderstorms capable of producing flash flooding the next several days. A strong coastal low will develop late Friday and is expected to bring flooding, high surf, dangerous rip currents, gusty winds and heavy rain to much of the U.S. East Coast through early next week. Read More >

Hazardous Weather Conditions

Current conditions at

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

Fair

48°F

9°C

Humidity 79%
Wind Speed E 5 mph
Barometer 30.46 in
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 9 Oct 11:25 pm EDT
Extended Forecast for

Fallston MD

Frost Advisory October 10, 02:00am until October 10, 09:00am
Click here for hazard details and duration
Frost Advisory

  • Tonight

    Tonight: Areas of frost after 5am. Otherwise, clear, with a low around 36. Northeast wind 3 to 5 mph.

    Low: 36 °F

    Areas Frost

  • Friday

    Friday: Areas of frost before 8am. Otherwise, increasing clouds, with a high near 63. Northeast wind 5 to 8 mph becoming southeast in the afternoon.

    High: 63 °F

    Areas Frost
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 49. Southeast wind 3 to 5 mph.

    Low: 49 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 67. East wind 5 to 9 mph. Chance of precipitation is 50%.

    High: 67 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers, mainly after 8pm. Low around 56. Northeast wind 8 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.

    Low: 56 °F

    Showers

  • Sunday

    Sunday: Showers. High near 61. Chance of precipitation is 80%.

    High: 61 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely. Cloudy, with a low around 52. Chance of precipitation is 70%.

    Low: 52 °F

    Showers
    Likely

  • Columbus Day

    Columbus Day: Showers likely, mainly before 2pm. Mostly cloudy, with a high near 60. Chance of precipitation is 60%.

    High: 60 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A chance of showers before 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.

    Low: 53 °F

    Chance
    Showers

Detailed Forecast

Tonight
Areas of frost after 5am. Otherwise, clear, with a low around 36. Northeast wind 3 to 5 mph.
Friday
Areas of frost before 8am. Otherwise, increasing clouds, with a high near 63. Northeast wind 5 to 8 mph becoming southeast in the afternoon.
Friday Night
Mostly cloudy, with a low around 49. Southeast wind 3 to 5 mph.
Saturday
A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 67. East wind 5 to 9 mph. Chance of precipitation is 50%.
Saturday Night
Showers, mainly after 8pm. Low around 56. Northeast wind 8 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.
Sunday
Showers. High near 61. Chance of precipitation is 80%.
Sunday Night
Showers likely. Cloudy, with a low around 52. Chance of precipitation is 70%.
Columbus Day
Showers likely, mainly before 2pm. Mostly cloudy, with a high near 60. Chance of precipitation is 60%.
Monday Night
A chance of showers before 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.
Tuesday
Partly sunny, with a high near 67.
Tuesday Night
Partly cloudy, with a low around 52.
Wednesday
Mostly sunny, with a high near 67.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fallston MD
 39.54°N 76.42°W (Elev. 397 ft)
Last Update:
10:29 pm EDT Oct 9, 2025
Forecast Valid:
11pm EDT Oct 9, 2025-6pm EDT Oct 16, 2025
 
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