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

Storm Impacting the Southwest U.S.

A slow moving weather disturbance will continue to bring periodic rain showers, a few isolated thunderstorms, and a localized flash flooding across the Southwest. The threat will expand into the Southern Plains Wednesday night. Moderate to heavy snow across the Sierra Nevada and southern Utah Ranges will continue into the overnight period. Read More >

Current conditions at

Baltimore, Inner Harbor (KDMH)

Lat: 39.28°NLon: 76.62°WElev: 20ft.

42°F

6°C

Humidity 89%
Wind Speed NA
Barometer 30.15 in (1021.0 mb)
Dewpoint 39°F (4°C)
Visibility NA
Last update 18 Nov 10:53 pm EST
Extended Forecast for

Riderwood MD

  • Tonight

    Tonight: Rain. Patchy fog. Low around 39. Light east wind. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 39 °F

    Rain and
    Patchy Fog

  • Wednesday

    Wednesday: A chance of rain, mainly before 7am. Patchy fog before noon. Otherwise, cloudy, with a high near 50. Calm wind becoming north around 6 mph in the morning. Chance of precipitation is 30%.

    High: 50 °F

    Chance Rain
    and Patchy
    Fog

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Mostly Cloudy

  • Thursday

    Thursday: Cloudy, with a high near 50. Calm wind.

    High: 50 °F

    Cloudy

  • Thursday Night

    Thursday Night: Cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Cloudy

  • Friday

    Friday: A slight chance of rain before 1pm. Mostly cloudy, with a high near 58. Chance of precipitation is 20%.

    High: 58 °F

    Slight Chance
    Rain

  • Friday Night

    Friday Night: Rain likely. Mostly cloudy, with a low around 44. Chance of precipitation is 60%.

    Low: 44 °F

    Rain Likely

  • Saturday

    Saturday: A chance of rain. Mostly cloudy, with a high near 53. Chance of precipitation is 40%.

    High: 53 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Rain. Patchy fog. Low around 39. Light east wind. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
A chance of rain, mainly before 7am. Patchy fog before noon. Otherwise, cloudy, with a high near 50. Calm wind becoming north around 6 mph in the morning. Chance of precipitation is 30%.
Wednesday Night
Mostly cloudy, with a low around 38. Calm wind.
Thursday
Cloudy, with a high near 50. Calm wind.
Thursday Night
Cloudy, with a low around 43. Calm wind.
Friday
A slight chance of rain before 1pm. Mostly cloudy, with a high near 58. Chance of precipitation is 20%.
Friday Night
Rain likely. Mostly cloudy, with a low around 44. Chance of precipitation is 60%.
Saturday
A chance of rain. Mostly cloudy, with a high near 53. Chance of precipitation is 40%.
Saturday Night
Mostly cloudy, with a low around 36.
Sunday
Mostly sunny, with a high near 56.
Sunday Night
Mostly clear, with a low around 38.
Monday
Mostly sunny, with a high near 57.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Mostly sunny, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Riderwood MD
 39.43°N 76.61°W (Elev. 348 ft)
Last Update:
9:53 pm EST Nov 18, 2025
Forecast Valid:
11pm EST Nov 18, 2025-6pm EST Nov 25, 2025
 
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