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

Washington/Reagan National Airport, DC (KDCA)

Lat: 38.85°NLon: 77.03°WElev: 13ft.

Overcast

75°F

24°C

Humidity 88%
Wind Speed S 6 mph
Barometer 30.07 in (1018.3 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 18 Sep 1:52 am EDT
Extended Forecast for

Marlow Heights MD

  • Overnight

    Overnight: Partly cloudy, with a low around 72. Light west wind.

    Low: 72 °F

    Partly Cloudy

  • Friday

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

    High: 85 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 64. Northeast wind around 7 mph.

    Low: 64 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 79. Northeast wind 6 to 8 mph.

    High: 79 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 67. Southeast wind 5 to 7 mph.

    Low: 67 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 83. Chance of precipitation is 30%.

    High: 83 °F

    Partly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a slight chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.

    Low: 67 °F

    Showers
    Likely

  • Monday

    Monday: A slight chance of showers before 8am, then a chance of showers after 2pm. Mostly cloudy, with a high near 78. Chance of precipitation is 50%.

    High: 78 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday Night

    Monday Night: Showers likely, mainly after 8pm. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.

    Low: 64 °F

    Showers
    Likely

Detailed Forecast

Overnight
Partly cloudy, with a low around 72. Light west wind.
Friday
Partly sunny, with a high near 85. North wind 6 to 8 mph.
Friday Night
Mostly cloudy, with a low around 64. Northeast wind around 7 mph.
Saturday
Partly sunny, with a high near 79. Northeast wind 6 to 8 mph.
Saturday Night
Mostly cloudy, with a low around 67. Southeast wind 5 to 7 mph.
Sunday
A chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 83. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a slight chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Monday
A slight chance of showers before 8am, then a chance of showers after 2pm. Mostly cloudy, with a high near 78. Chance of precipitation is 50%.
Monday Night
Showers likely, mainly after 8pm. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 64. Chance of precipitation is 50%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 50%.
Thursday
A chance of showers. Mostly cloudy, with a high near 69. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Marlow Heights MD
 38.81°N 76.95°W (Elev. 230 ft)
Last Update:
2:22 am EDT Sep 18, 2026
Forecast Valid:
2am EDT Sep 18, 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