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

Dangerous Heat in the East; Critical Fire Weather in the Southwest

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Heat is likely to continue across the eastern U.S. through the Independence Day holiday weekend. Critical fire weather conditions will continue today and likely Tuesday across portions of the Four Corners and northern High Plains. Read More >

Current conditions at

Baltimore / Martin (KMTN)

Lat: 39.33°NLon: 76.42°WElev: 23ft.

A Few Clouds

86°F

30°C

Humidity 43%
Wind Speed N 1 mph
Barometer 30.12 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 29 Jun 2:47 pm EDT
Extended Forecast for

White Marsh MD

  • This Afternoon

    This Afternoon: Sunny, with a high near 90. Southeast wind 5 to 8 mph.

    High: 90 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 69. South wind around 5 mph becoming calm after midnight.

    Low: 69 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89. Light southwest wind becoming south 6 to 11 mph in the morning. Winds could gust as high as 18 mph.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 72. South wind 7 to 10 mph, with gusts as high as 22 mph.

    Low: 72 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 96. South wind 5 to 8 mph. Chance of precipitation is 20%.

    High: 96 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 102.

    High: 102 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 79.

    Low: 79 °F

    Clear

  • Friday

    Friday: A chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 105. Chance of precipitation is 30%.

    High: 105 °F

    Sunny then
    Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 90. Southeast wind 5 to 8 mph.
Tonight
Mostly clear, with a low around 69. South wind around 5 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 89. Light southwest wind becoming south 6 to 11 mph in the morning. Winds could gust as high as 18 mph.
Tuesday Night
Mostly clear, with a low around 72. South wind 7 to 10 mph, with gusts as high as 22 mph.
Wednesday
A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 96. South wind 5 to 8 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 76.
Thursday
Sunny and hot, with a high near 102.
Thursday Night
Clear, with a low around 79.
Friday
A chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 105. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 78. Chance of precipitation is 30%.
Independence Day
Showers likely and possibly a thunderstorm. Mostly sunny and hot, with a high near 103. Chance of precipitation is 60%.
Saturday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 76. Chance of precipitation is 60%.
Sunday
A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 98. Chance of precipitation is 30%.
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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:
2:25 pm EDT Jun 29, 2026
Forecast Valid:
2pm EDT Jun 29, 2026-6pm EDT Jul 5, 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