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.

Overcast

69°F

21°C

Humidity 100%
Wind Speed Calm
Barometer 29.96 in
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 20 Aug 4:55 am EDT
Extended Forecast for

Conowingo MD

  • Today

    Today: Isolated showers before 11am, then scattered showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 79. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 79 °F

    Scattered
    Showers then
    Showers

  • Tonight

    Tonight: Showers and thunderstorms likely before 8pm, then isolated showers between 8pm and 9pm. Patchy fog between 9pm and 2am. Otherwise, mostly cloudy, with a low around 63. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Showers
    Likely and
    Patchy Fog
    then Patchy
    Fog

  • Friday

    Friday: Mostly sunny, with a high near 79. Northeast wind around 6 mph becoming light and variable in the afternoon.

    High: 79 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Increasing clouds, with a low around 66. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm 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 79. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 60%.

    High: 79 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.

    Low: 66 °F

    Showers
    Likely

  • Sunday

    Sunday: A slight chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 40%.

    High: 82 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 62. Chance of precipitation is 30%.

    Low: 62 °F

    Chance
    Showers then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

Detailed Forecast

Today
Isolated showers before 11am, then scattered showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 79. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers and thunderstorms likely before 8pm, then isolated showers between 8pm and 9pm. Patchy fog between 9pm and 2am. Otherwise, mostly cloudy, with a low around 63. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Mostly sunny, with a high near 79. Northeast wind around 6 mph becoming light and variable in the afternoon.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Increasing clouds, with a low around 66. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers likely and possibly a thunderstorm 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 79. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 60%.
Saturday Night
Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Sunday
A slight chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 62. Chance of precipitation is 30%.
Monday
Sunny, with a high near 78.
Monday Night
Mostly clear, with a low around 61.
Tuesday
Sunny, with a high near 79.
Tuesday Night
Partly cloudy, with a low around 63.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 82. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Conowingo MD
 39.69°N 76.19°W (Elev. 272 ft)
Last Update:
4:53 am EDT Aug 20, 2026
Forecast Valid:
5am EDT Aug 20, 2026-6pm EDT Aug 26, 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