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

Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

Baltimore / Martin (KMTN)

Lat: 39.33°NLon: 76.42°WElev: 23ft.

Fair

61°F

16°C

Humidity 77%
Wind Speed SE 9 G 16 mph
Barometer 29.90 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 18 Apr 7:48 pm EDT
Extended Forecast for

White Marsh MD

  • Tonight

    Tonight: Scattered showers after 3am. Mostly cloudy, with a low around 50. Southeast wind 5 to 10 mph becoming light east. Winds could gust as high as 18 mph. Chance of precipitation is 30%.

    Low: 50 °F

    Mostly Cloudy
    then
    Scattered
    Showers

  • Sunday

    Sunday: Showers, mainly before 1pm. High near 58. Northwest wind 14 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 58 °F

    Showers then
    Scattered
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 41. West wind 5 to 8 mph.

    Low: 41 °F

    Mostly Clear

  • Monday

    Monday: Isolated showers before 2pm. Mostly sunny, with a high near 53. Northwest wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    High: 53 °F

    Isolated
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 33. North wind 5 to 8 mph.

    Low: 33 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers after 8am. Partly sunny, with a high near 69. Chance of precipitation is 30%.

    High: 69 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

Detailed Forecast

Tonight
Scattered showers after 3am. Mostly cloudy, with a low around 50. Southeast wind 5 to 10 mph becoming light east. Winds could gust as high as 18 mph. Chance of precipitation is 30%.
Sunday
Showers, mainly before 1pm. High near 58. Northwest wind 14 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Mostly clear, with a low around 41. West wind 5 to 8 mph.
Monday
Isolated showers before 2pm. Mostly sunny, with a high near 53. Northwest wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 33. North wind 5 to 8 mph.
Tuesday
Sunny, with a high near 55.
Tuesday Night
Partly cloudy, with a low around 45.
Wednesday
A chance of showers after 8am. Partly sunny, with a high near 69. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
Sunny, with a high near 73.
Thursday Night
Mostly clear, with a low around 53.
Friday
Sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 55.
Saturday
A chance of showers. Partly sunny, with a high near 71. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
White Marsh MD
 39.39°N 76.48°W (Elev. 157 ft)
Last Update:
7:53 pm EDT Apr 18, 2026
Forecast Valid:
8pm EDT Apr 18, 2026-6pm EDT Apr 25, 2026
 
Forecast Discussion
 
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Additional Resources

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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