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 >

Hazardous Weather Conditions

Current conditions at

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

Fair with Haze

83°F

28°C

Humidity 53%
Wind Speed SW 13 G 18 mph
Barometer 29.96 in
Dewpoint 64°F (18°C)
Visibility 5.00 mi
Heat Index84°F (29°C)
Last update 15 Apr 11:55 am EDT
Extended Forecast for

4 Miles NNE White Hall MD

  • This Afternoon

    This Afternoon: Sunny, with a high near 87. Southwest wind around 11 mph, with gusts as high as 21 mph.

    High: 87 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 67. Southwest wind 3 to 6 mph.

    Low: 67 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Partly sunny, with a high near 86. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 86 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers. Mostly cloudy, with a low around 65. West wind around 8 mph. Chance of precipitation is 20%.

    Low: 65 °F

    Slight Chance
    Showers

  • Friday

    Friday: A chance of showers, mainly after 2pm. Partly sunny, with a high near 76. West wind 7 to 9 mph. Chance of precipitation is 30%.

    High: 76 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers before 8pm. Mostly clear, with a low around 60. Chance of precipitation is 30%.

    Low: 60 °F

    Chance
    Showers then
    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.

    Low: 53 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 65. Chance of precipitation is 60%.

    High: 65 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 87. Southwest wind around 11 mph, with gusts as high as 21 mph.
Tonight
Increasing clouds, with a low around 67. Southwest wind 3 to 6 mph.
Thursday
Partly sunny, with a high near 86. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 65. West wind around 8 mph. Chance of precipitation is 20%.
Friday
A chance of showers, mainly after 2pm. Partly sunny, with a high near 76. West wind 7 to 9 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers before 8pm. Mostly clear, with a low around 60. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 78.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.
Sunday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 65. Chance of precipitation is 60%.
Sunday Night
Showers likely, mainly before 8pm. Partly cloudy, with a low around 38. Chance of precipitation is 60%.
Monday
Sunny, with a high near 51. Breezy.
Monday Night
Mostly clear, with a low around 33.
Tuesday
Sunny, with a high near 62.
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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:
10:53 am EDT Apr 15, 2026
Forecast Valid:
12pm EDT Apr 15, 2026-6pm EDT Apr 21, 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