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

Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Current conditions at

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

Fair

83°F

28°C

Humidity 45%
Wind Speed SW 7 mph
Barometer 29.90 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 15 Apr 5:55 pm EDT
Extended Forecast for

4 Miles NNE White Hall MD

  • Tonight

    Tonight: Mostly cloudy, with a low around 66. Southwest wind 5 to 9 mph becoming light west after midnight. Winds could gust as high as 18 mph.

    Low: 66 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 86. Light southwest wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 20 mph.

    High: 86 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers. Mostly cloudy, with a low around 64. West wind around 6 mph. Chance of precipitation is 20%.

    Low: 64 °F

    Slight Chance
    Showers

  • Friday

    Friday: A chance of showers. Partly sunny, with a high near 77. Northwest wind 7 to 9 mph. Chance of precipitation is 30%.

    High: 77 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 56. Light northeast wind.

    Low: 56 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers after 2pm. Mostly sunny, with a high near 77. Chance of precipitation is 20%.

    High: 77 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers after 8pm. Mostly cloudy, with a low around 49. Chance of precipitation is 50%.

    Low: 49 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers likely, mainly before 2pm. Mostly cloudy, with a high near 60. Chance of precipitation is 60%.

    High: 60 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers before 8pm. Partly cloudy, with a low around 36. Chance of precipitation is 30%.

    Low: 36 °F

    Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 66. Southwest wind 5 to 9 mph becoming light west after midnight. Winds could gust as high as 18 mph.
Thursday
Mostly sunny, with a high near 86. Light southwest wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 64. West wind around 6 mph. Chance of precipitation is 20%.
Friday
A chance of showers. Partly sunny, with a high near 77. Northwest wind 7 to 9 mph. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 56. Light northeast wind.
Saturday
A slight chance of showers after 2pm. Mostly sunny, with a high near 77. Chance of precipitation is 20%.
Saturday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 49. Chance of precipitation is 50%.
Sunday
Showers likely, mainly before 2pm. Mostly cloudy, with a high near 60. Chance of precipitation is 60%.
Sunday Night
A chance of showers before 8pm. Partly cloudy, with a low around 36. Chance of precipitation is 30%.
Monday
Sunny, with a high near 51.
Monday Night
Mostly clear, with a low around 32.
Tuesday
Sunny, with a high near 61.
Tuesday Night
Mostly clear, with a low around 48.
Wednesday
Partly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE White Hall MD
 39.71°N 76.54°W (Elev. 748 ft)
Last Update:
4:53 pm EDT Apr 15, 2026
Forecast Valid:
6pm EDT Apr 15, 2026-6pm EDT Apr 22, 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