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

Hazardous Weather Conditions

Current conditions at

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

Fair

78°F

26°C

Humidity 100%
Wind Speed SE 9 mph
Barometer 30.06 in
Dewpoint 78°F (26°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 12 Jul 9:45 pm EDT
Extended Forecast for

Fallston MD

  • Tonight

    Tonight: Increasing clouds, with a low around 71. Southeast wind 3 to 5 mph.

    Low: 71 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 86. Southeast wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 71. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Showers
    Likely

  • Monday

    Monday: A chance of showers before 11am, then a 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. Light and variable wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 70. Calm wind. Chance of precipitation is 60%.

    Low: 70 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 30%.

    High: 89 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. Chance of precipitation is 30%.

    Low: 71 °F

    Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 40%.

    High: 88 °F

    Partly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 73. Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    T-storms then
    Mostly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 71. Southeast wind 3 to 5 mph.
Sunday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 86. Southeast wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 71. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A chance of showers before 11am, then a 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. Light and variable wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 70. Calm wind. Chance of precipitation is 60%.
Tuesday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 73. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Chance of precipitation is 40%.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 90. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Fallston MD
 39.51°N 76.4°W (Elev. 400 ft)
Last Update:
10:30 am EDT Jul 12, 2025
Forecast Valid:
10pm EDT Jul 12, 2025-6pm EDT Jul 19, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation