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, Inner Harbor (KDMH)

Lat: 39.28°NLon: 76.62°WElev: 20ft.

86°F

30°C

Humidity 46%
Wind Speed NA
Barometer 30.10 in (1019.1 mb)
Dewpoint 63°F (17°C)
Visibility NA
Heat Index87°F (31°C)
Last update 29 Jun 1:53 pm EDT
Extended Forecast for

Marriottsville MD

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 87. Southeast wind around 6 mph.

    High: 87 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 67. South wind around 5 mph becoming calm after midnight.

    Low: 67 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 89. Calm wind becoming south 5 to 8 mph in the morning.

    High: 89 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 69. South wind 5 to 7 mph.

    Low: 69 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 96. Southwest wind around 6 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 75.

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 100.

    High: 100 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 77.

    Low: 77 °F

    Clear

  • Friday

    Friday: A slight chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 102. Chance of precipitation is 20%.

    High: 102 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 87. Southeast wind around 6 mph.
Tonight
Mostly clear, with a low around 67. South wind around 5 mph becoming calm after midnight.
Tuesday
Mostly sunny, with a high near 89. Calm wind becoming south 5 to 8 mph in the morning.
Tuesday Night
Mostly clear, with a low around 69. South wind 5 to 7 mph.
Wednesday
A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 96. Southwest wind around 6 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 75.
Thursday
Sunny and hot, with a high near 100.
Thursday Night
Clear, with a low around 77.
Friday
A slight chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 102. Chance of precipitation is 20%.
Friday Night
A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 75. Chance of precipitation is 20%.
Independence Day
Showers likely and possibly a thunderstorm. Mostly sunny and hot, with a high near 100. Chance of precipitation is 60%.
Saturday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 73. Chance of precipitation is 60%.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 95. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Marriottsville MD
 39.34°N 76.89°W (Elev. 364 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