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

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

Overcast

31°F

-1°C

Humidity 77%
Wind Speed S 10 mph
Barometer 30.29 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 19 Mar 2:35 am EDT
Extended Forecast for

Fallston MD

  • Overnight

    Overnight: Mostly cloudy, with a low around 29. Light southeast wind.

    Low: 29 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 49. South wind 5 to 8 mph.

    High: 49 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 35. Calm wind.

    Low: 35 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of showers after 2pm. Increasing clouds, with a high near 59. Light and variable wind becoming south 6 to 11 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    High: 59 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Showers likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 47. South wind 6 to 8 mph. Chance of precipitation is 60%.

    Low: 47 °F

    Showers
    Likely

  • Saturday

    Saturday: A chance of showers before 8am. Mostly sunny, with a high near 64. Chance of precipitation is 30%.

    High: 64 °F

    Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 67.

    High: 67 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of rain. Mostly cloudy, with a low around 41. Chance of precipitation is 40%.

    Low: 41 °F

    Chance Rain

Detailed Forecast

Overnight
Mostly cloudy, with a low around 29. Light southeast wind.
Thursday
Partly sunny, with a high near 49. South wind 5 to 8 mph.
Thursday Night
Mostly cloudy, with a low around 35. Calm wind.
Friday
A slight chance of showers after 2pm. Increasing clouds, with a high near 59. Light and variable wind becoming south 6 to 11 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Friday Night
Showers likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 47. South wind 6 to 8 mph. Chance of precipitation is 60%.
Saturday
A chance of showers before 8am. Mostly sunny, with a high near 64. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 44.
Sunday
Partly sunny, with a high near 67.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 41. Chance of precipitation is 40%.
Monday
Partly sunny, with a high near 52.
Monday Night
Mostly clear, with a low around 28.
Tuesday
Partly sunny, with a high near 45.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
Partly sunny, with a high near 53.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fallston MD
 39.52°N 76.43°W (Elev. 410 ft)
Last Update:
2:23 am EDT Mar 19, 2026
Forecast Valid:
3am EDT Mar 19, 2026-6pm EDT Mar 25, 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