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.

Partly Cloudy

81°F

27°C

Humidity 70%
Wind Speed Calm
Barometer 30.13 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 29 Jun 10:48 am EDT
Extended Forecast for

Long Green MD

  • Today

    Today: Mostly sunny, with a high near 87. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 87 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 66. South wind 5 to 7 mph becoming calm after midnight.

    Low: 66 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86. Light south wind increasing to 5 to 10 mph in the morning.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 70. South wind 6 to 9 mph.

    Low: 70 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 96. Southwest wind 5 to 7 mph.

    High: 96 °F

    Sunny

  • 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 101.

    High: 101 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 78.

    Low: 78 °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

Today
Mostly sunny, with a high near 87. Calm wind becoming southeast around 6 mph in the afternoon.
Tonight
Mostly clear, with a low around 66. South wind 5 to 7 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 86. Light south wind increasing to 5 to 10 mph in the morning.
Tuesday Night
Mostly clear, with a low around 70. South wind 6 to 9 mph.
Wednesday
Sunny, with a high near 96. Southwest wind 5 to 7 mph.
Wednesday Night
Mostly clear, with a low around 76.
Thursday
Sunny and hot, with a high near 101.
Thursday Night
Clear, with a low around 78.
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 77. Chance of precipitation is 20%.
Independence Day
A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 98. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 94. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Long Green MD
 39.46°N 76.52°W (Elev. 407 ft)
Last Update:
10:53 am EDT Jun 29, 2026
Forecast Valid:
11am 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