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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Hazardous Weather Conditions

Current conditions at

Baltimore, Baltimore-Washington International Airport (KBWI)

Lat: 39.17°NLon: 76.68°WElev: 135ft.

Mostly Cloudy

75°F

24°C

Humidity 66%
Wind Speed E 9 mph
Barometer 30.07 in (1018.1 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 19 Sep 7:54 pm EDT
Extended Forecast for

Baltimore-Washington International Airport MD

Coastal Flood Advisory September 19, 09:00pm until September 20, 05:00am
Click here for hazard details and duration
Coastal Flood Advisory

  • Tonight

    Tonight: Mostly cloudy, with a low around 67. Southeast wind 7 to 9 mph.

    Low: 67 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 83. Southwest wind 8 to 11 mph. Chance of precipitation is 50%.

    High: 83 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. Light and variable wind becoming north around 6 mph after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Showers
    Likely

  • Monday

    Monday: A chance of showers, mainly before 8am. Mostly cloudy, with a high near 74. North wind 9 to 11 mph. Chance of precipitation is 30%.

    High: 74 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers. Cloudy, with a low around 57. Northeast wind around 9 mph. Chance of precipitation is 50%.

    Low: 57 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Showers likely, mainly after 2pm. Cloudy, with a high near 68. Chance of precipitation is 60%.

    High: 68 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.

    Low: 54 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers. Mostly cloudy, with a high near 67. Chance of precipitation is 40%.

    High: 67 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.

    Low: 54 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 67. Southeast wind 7 to 9 mph.
Sunday
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 83. Southwest wind 8 to 11 mph. Chance of precipitation is 50%.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. Light and variable wind becoming north around 6 mph after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A chance of showers, mainly before 8am. Mostly cloudy, with a high near 74. North wind 9 to 11 mph. Chance of precipitation is 30%.
Monday Night
A chance of showers. Cloudy, with a low around 57. Northeast wind around 9 mph. Chance of precipitation is 50%.
Tuesday
Showers likely, mainly after 2pm. Cloudy, with a high near 68. Chance of precipitation is 60%.
Tuesday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 67. Chance of precipitation is 40%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.
Thursday
A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 66. Chance of precipitation is 30%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 52. Chance of precipitation is 30%.
Friday
A chance of showers. Partly sunny, with a high near 68. Chance of precipitation is 30%.
Friday Night
A slight chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 20%.
Saturday
A slight chance of showers. Mostly sunny, with a high near 72. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Baltimore-Washington International Airport MD
 39.17°N 76.69°W (Elev. 125 ft)
Last Update:
7:53 pm EDT Sep 19, 2026
Forecast Valid:
8pm EDT Sep 19, 2026-6pm EDT Sep 26, 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