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

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Sunday could bring areas of flooding to parts of the upper Midwest, central Great Lakes, southern New England and Virginia/North Carolina tidewater region. Read More >

Current conditions at

Baltimore / Martin (KMTN)

Lat: 39.33°NLon: 76.42°WElev: 23ft.

Overcast

78°F

26°C

Humidity 78%
Wind Speed W 3 mph
Barometer 30.12 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 17 Sep 10:35 pm EDT
Extended Forecast for

Dundalk MD

  • Tonight

    Tonight: Isolated showers and thunderstorms before midnight, then isolated showers between midnight and 1am. Partly cloudy, with a low around 72. Light west wind. Chance of precipitation is 20%.

    Low: 72 °F

    Isolated
    T-storms then
    Isolated
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 85. North wind 6 to 8 mph.

    High: 85 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 63. North wind around 6 mph.

    Low: 63 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 79. Northeast wind 6 to 8 mph becoming east in the afternoon.

    High: 79 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers after 2am. Mostly cloudy, with a low around 67. Southeast wind 6 to 8 mph. Chance of precipitation is 20%.

    Low: 67 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.

    High: 82 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.

    Low: 66 °F

    Showers
    Likely

  • Monday

    Monday: A chance of showers. Mostly cloudy, with a high near 76. Chance of precipitation is 40%.

    High: 76 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.

    Low: 62 °F

    Chance
    Showers

Detailed Forecast

Tonight
Isolated showers and thunderstorms before midnight, then isolated showers between midnight and 1am. Partly cloudy, with a low around 72. Light west wind. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 85. North wind 6 to 8 mph.
Friday Night
Mostly clear, with a low around 63. North wind around 6 mph.
Saturday
Mostly sunny, with a high near 79. Northeast wind 6 to 8 mph becoming east in the afternoon.
Saturday Night
A slight chance of showers after 2am. Mostly cloudy, with a low around 67. Southeast wind 6 to 8 mph. Chance of precipitation is 20%.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.
Sunday Night
Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Monday
A chance of showers. Mostly cloudy, with a high near 76. Chance of precipitation is 40%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.
Tuesday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 67. Chance of precipitation is 60%.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Wednesday
A chance of showers. Partly sunny, with a high near 65. Chance of precipitation is 40%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.
Thursday
A chance of showers. Partly sunny, with a high near 67. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dundalk MD
 39.28°N 76.5°W (Elev. 20 ft)
Last Update:
9:29 pm EDT Sep 17, 2026
Forecast Valid:
10pm EDT Sep 17, 2026-6pm EDT Sep 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