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

Heat Wave and Severe Thunderstorms this Independence Day

A prolonged, dangerous heat wave will persist through the Independence Day weekend across the Ohio Valley, Midwest, and Mid-Atlantic. Numerous temperature records are expected. Clusters of severe thunderstorms will move across parts of the Allegheny Plateau into Mid Atlantic this Independence Day, with potential for widespread damaging winds. Additional severe thunderstorms in the Great Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Baltimore / Martin (KMTN)

Lat: 39.33°NLon: 76.42°WElev: 23ft.

Fair

99°F

37°C

Humidity 31%
Wind Speed S 13 mph
Barometer 29.87 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index101°F (38°C)
Last update 4 Jul 5:47 pm EDT
Extended Forecast for

Nottingham MD

Severe T-storm Watch until July 4, 10:00pm
Extreme Heat Warning July 4, 06:00pm until July 4, 09:00pm
Click here for hazard details and duration
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  •  
    Severe T-storm Watch until July 4, 10:00pm
    Extreme Heat Warning July 4, 06:00pm until July 4, 09:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 75 °F

    Severe
    Thunderstorms
    then Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 94. Heat index values as high as 103. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 30%.

    High: 94 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: Showers and thunderstorms before 11pm, then showers likely and possibly a thunderstorm between 11pm and 1am, then a chance of showers and thunderstorms after 1am. Some of the storms could produce heavy rainfall. Low around 70. Northwest wind 6 to 8 mph becoming east after midnight. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

    Low: 70 °F

    Heavy Rain

  • Monday

    Monday: Showers and possibly a thunderstorm. High near 84. Northeast wind around 6 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 84 °F

    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 5am, then showers likely. Low around 68. North wind around 7 mph. Chance of precipitation is 80%.

    Low: 68 °F

    Showers

  • Tuesday

    Tuesday: Showers likely, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 83. Chance of precipitation is 60%.

    High: 83 °F

    Showers
    Likely then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

Detailed Forecast

Tonight
Showers and thunderstorms before 1am, then a chance of showers. Some of the storms could be severe. Low around 75. Southwest wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 94. Heat index values as high as 103. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 30%.
Sunday Night
Showers and thunderstorms before 11pm, then showers likely and possibly a thunderstorm between 11pm and 1am, then a chance of showers and thunderstorms after 1am. Some of the storms could produce heavy rainfall. Low around 70. Northwest wind 6 to 8 mph becoming east after midnight. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Monday
Showers and possibly a thunderstorm. High near 84. Northeast wind around 6 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and possibly a thunderstorm before 5am, then showers likely. Low around 68. North wind around 7 mph. Chance of precipitation is 80%.
Tuesday
Showers likely, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 83. Chance of precipitation is 60%.
Tuesday Night
A chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 85.
Wednesday Night
Partly cloudy, with a low around 69.
Thursday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 73. Chance of precipitation is 20%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 92. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Nottingham MD
 39.39°N 76.51°W (Elev. 351 ft)
Last Update:
4:53 pm EDT Jul 4, 2026
Forecast Valid:
6pm EDT Jul 4, 2026-6pm EDT Jul 11, 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