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

Baltimore, Inner Harbor (KDMH)

Lat: 39.28°NLon: 76.62°WElev: 20ft.

83°F

28°C

Humidity 77%
Wind Speed NA
Barometer 30.04 in (1017.3 mb)
Dewpoint 75°F (24°C)
Visibility NA
Heat Index90°F (32°C)
Last update 16 Jul 12:53 am EDT
Extended Forecast for

Riderwood MD

  • Overnight

    Overnight: Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 74. Calm wind.

    Low: 74 °F

    Patchy Fog

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 90. Heat index values as high as 102. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 90 °F

    Slight Chance
    T-storms and
    Patchy Fog
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 75. South wind 3 to 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 75 °F

    Showers
    Likely then
    Chance
    T-storms

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 94. Heat index values as high as 101. West wind 6 to 8 mph. Chance of precipitation is 40%.

    High: 94 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. Southwest wind 3 to 6 mph. Chance of precipitation is 30%.

    Low: 76 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 40%.

    High: 87 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.

    Low: 70 °F

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: A chance of showers after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 30%.

    High: 86 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.

    Low: 72 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 74. Calm wind.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 90. Heat index values as high as 102. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 75. South wind 3 to 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 94. Heat index values as high as 101. West wind 6 to 8 mph. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. Southwest wind 3 to 6 mph. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.
Saturday
A chance of showers after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 30%.
Saturday Night
A chance of showers before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 70%.
Sunday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 40%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Riderwood MD
 39.42°N 76.59°W (Elev. 348 ft)
Last Update:
12:21 am EDT Jul 16, 2025
Forecast Valid:
1am EDT Jul 16, 2025-6pm EDT Jul 22, 2025
 
Forecast Discussion
 
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Additional Resources

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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