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.

Fair

61°F

16°C

Humidity 100%
Wind Speed NW 3 mph
Barometer 29.97 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 24 Jun 1:55 am EDT
Extended Forecast for

Fallston MD

  • Overnight

    Overnight: Clear, with a low around 59. North wind around 7 mph.

    Low: 59 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 81. Northwest wind around 8 mph.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 60. Calm wind.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 83. Light south wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

    High: 83 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 66. South wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    Low: 66 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 85. Chance of precipitation is 60%.

    High: 85 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 68. Chance of precipitation is 80%.

    Low: 68 °F

    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.

    High: 80 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Clear, with a low around 59. North wind around 7 mph.
Wednesday
Sunny, with a high near 81. Northwest wind around 8 mph.
Wednesday Night
Mostly clear, with a low around 60. Calm wind.
Thursday
Mostly sunny, with a high near 83. Light south wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
A slight chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 66. South wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Friday
A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 85. Chance of precipitation is 60%.
Friday Night
Showers and possibly a thunderstorm. Low around 68. Chance of precipitation is 80%.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.
Saturday Night
A chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 85.
Sunday Night
Mostly clear, with a low around 65.
Monday
Mostly sunny, with a high near 87.
Monday Night
Partly cloudy, with a low around 68.
Tuesday
Mostly sunny, with a high near 88.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fallston MD
 39.52°N 76.43°W (Elev. 410 ft)
Last Update:
10:52 pm EDT Jun 23, 2026
Forecast Valid:
2am EDT Jun 24, 2026-6pm EDT Jun 30, 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