Severe Weather in the Central U.S.; Heavy Rain in the Ohio Valley and Mid-Atlantic

Scattered severe thunderstorms capable of producing severe gusts, large hail, and perhaps a couple tornadoes are forecast from the north-central High Plains into the Upper Mississippi Valley. Widespread thunderstorms may produce excessive rainfall across portions of the Ohio Valley and Mid-Atlantic. Hot conditions and Critical Fire Weather looms over the Great Basin and Southwest through midweek. Read More >

Current conditions at

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

Fog/Mist

64°F

18°C

Humidity 100%
Wind Speed E 6 mph
Barometer 30.04 in
Dewpoint 64°F (18°C)
Visibility 3.00 mi
Last update 16 Jun 9:15 pm EDT
Extended Forecast for

Conowingo MD

  • Tonight

    Tonight: Isolated showers before midnight, then scattered showers after 1am.  Patchy fog between 11pm and 1am.  Otherwise, cloudy, with a low around 63. Calm wind.  Chance of precipitation is 30%.

    Low: 63 °F

    Scattered
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: Scattered showers, with thunderstorms also possible after 5pm.  Patchy fog between 7am and 9am.  Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 78. Calm wind becoming south around 6 mph in the afternoon.  Chance of precipitation is 30%.

    High: 78 °F

    Scattered
    Showers and
    Patchy Fog
    then
    Scattered
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely.  Mostly cloudy, with a low around 69. Light southeast wind.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm.  Partly sunny, with a high near 88. Calm wind becoming southwest 5 to 7 mph in the afternoon.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers between 8pm and 2am.  Partly cloudy, with a low around 71. Light southwest wind.  Chance of precipitation is 60%.

    Low: 71 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Juneteenth

    Juneteenth: Showers likely and possibly a thunderstorm, mainly after 2pm.  Mostly sunny, with a high near 90. Chance of precipitation is 70%.

    High: 90 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 8pm.  Partly cloudy, with a low around 64. Chance of precipitation is 60%.

    Low: 64 °F

    Showers
    Likely then
    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

Detailed Forecast

Tonight
Isolated showers before midnight, then scattered showers after 1am. Patchy fog between 11pm and 1am. Otherwise, cloudy, with a low around 63. Calm wind. Chance of precipitation is 30%.
Tuesday
Scattered showers, with thunderstorms also possible after 5pm. Patchy fog between 7am and 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 78. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 30%.
Tuesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 69. Light southeast wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 88. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers between 8pm and 2am. Partly cloudy, with a low around 71. Light southwest wind. Chance of precipitation is 60%.
Juneteenth
Showers likely and possibly a thunderstorm, mainly after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 70%.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 64. Chance of precipitation is 60%.
Friday
Sunny, with a high near 85.
Friday Night
Partly cloudy, with a low around 63.
Saturday
Mostly sunny, with a high near 86.
Saturday Night
Partly cloudy, with a low around 68.
Sunday
Mostly sunny, with a high near 92.
Sunday Night
Partly cloudy, with a low around 73.
Monday
Sunny, with a high near 94.
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ABOUT THIS FORECAST

 
Point Forecast:
Conowingo MD
 39.69°N 76.19°W (Elev. 272 ft)
7:29 pm EDT Jun 16, 2025
9pm EDT Jun 16, 2025-6pm EDT Jun 23, 2025
 
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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