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

Severe Weather Across the Center of the Nation; Fire Weather Concerns for Southwest and California; Snow for the Central Rockies

Severe thunderstorms will continue to impact the center of the Nation through today. Very large hail, strong tornadoes, and damaging winds are expected from the Great Lakes into the central/southern Plains; Flash flooding is possible for portions into the mid-Mississippi Valley. Critical fire weather conditions for the Southwest and central valley of California today. Winter hangs on for Rockies. Read More >

Hazardous Weather Conditions

Current conditions at

Baltimore / Martin (KMTN)

Lat: 39.33°NLon: 76.42°WElev: 23ft.

Fair

84°F

29°C

Humidity 55%
Wind Speed S 8 mph
Barometer 30.17 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 18 May 1:46 pm EDT
Extended Forecast for

White Marsh MD

  • This Afternoon

    This Afternoon: Sunny, with a high near 91. South wind around 9 mph.

    High: 91 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 69. South wind 5 to 10 mph becoming light. Winds could gust as high as 18 mph.

    Low: 69 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94. Southwest wind 5 to 10 mph.

    High: 94 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 72. Southwest wind 6 to 8 mph.

    Low: 72 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm after 2pm. High near 95. West wind 5 to 10 mph. Chance of precipitation is 90%.

    High: 95 °F

    Sunny then
    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 8pm, then showers likely. Low around 59. Chance of precipitation is 80%.

    Low: 59 °F

    Showers

  • Thursday

    Thursday: A chance of showers after 8am. Mostly cloudy, with a high near 70. Chance of precipitation is 50%.

    High: 70 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers after 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.

    Low: 54 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers likely, mainly after 8am. Mostly cloudy, with a high near 66. Chance of precipitation is 60%.

    High: 66 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 91. South wind around 9 mph.
Tonight
Mostly clear, with a low around 69. South wind 5 to 10 mph becoming light. Winds could gust as high as 18 mph.
Tuesday
Sunny, with a high near 94. Southwest wind 5 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 72. Southwest wind 6 to 8 mph.
Wednesday
Showers and possibly a thunderstorm after 2pm. High near 95. West wind 5 to 10 mph. Chance of precipitation is 90%.
Wednesday Night
Showers and possibly a thunderstorm before 8pm, then showers likely. Low around 59. Chance of precipitation is 80%.
Thursday
A chance of showers after 8am. Mostly cloudy, with a high near 70. Chance of precipitation is 50%.
Thursday Night
A chance of showers after 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.
Friday
Showers likely, mainly after 8am. Mostly cloudy, with a high near 66. Chance of precipitation is 60%.
Friday Night
Showers. Low around 55. Chance of precipitation is 80%.
Saturday
Showers. High near 73. Chance of precipitation is 80%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 60. Chance of precipitation is 70%.
Sunday
A chance of showers. Mostly cloudy, with a high near 77. Chance of precipitation is 50%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
White Marsh MD
 39.36°N 76.45°W (Elev. 69 ft)
Last Update:
10:53 am EDT May 18, 2026
Forecast Valid:
2pm EDT May 18, 2026-6pm EDT May 24, 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