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 >

Current conditions at

Baltimore, Inner Harbor (KDMH)

Lat: 39.28°NLon: 76.62°WElev: 20ft.

78°F

26°C

Humidity 58%
Wind Speed NA
Barometer 30.08 in (1018.6 mb)
Dewpoint 62°F (17°C)
Visibility NA
Heat Index80°F (27°C)
Last update 19 Sep 5:53 pm EDT
Extended Forecast for

Riderwood MD

  • Tonight

    Tonight: A slight chance of showers before 2am, then a slight chance of showers after 5am. Mostly cloudy, with a low around 67. Southeast wind around 9 mph. Chance of precipitation is 20%.

    Low: 67 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 2pm. Cloudy, with a high near 83. South wind 9 to 11 mph. Chance of precipitation is 50%.

    High: 83 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 61. Light and variable wind becoming north 5 to 8 mph after midnight. Chance of precipitation is 50%.

    Low: 61 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: A chance of showers after 2pm. Mostly cloudy, with a high near 73. Northeast wind 9 to 11 mph. Chance of precipitation is 30%.

    High: 73 °F

    Mostly Cloudy
    then 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 67. Chance of precipitation is 60%.

    High: 67 °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 65. Chance of precipitation is 40%.

    High: 65 °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
A slight chance of showers before 2am, then a slight chance of showers after 5am. Mostly cloudy, with a low around 67. Southeast wind around 9 mph. Chance of precipitation is 20%.
Sunday
A chance of showers, with thunderstorms also possible after 2pm. Cloudy, with a high near 83. South wind 9 to 11 mph. Chance of precipitation is 50%.
Sunday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 61. Light and variable wind becoming north 5 to 8 mph after midnight. Chance of precipitation is 50%.
Monday
A chance of showers after 2pm. Mostly cloudy, with a high near 73. Northeast 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 67. 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 65. 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 slight chance of showers. Mostly cloudy, with a high near 65. Chance of precipitation is 20%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 53. 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 71. Chance of precipitation is 20%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Riderwood MD
 39.4°N 76.62°W (Elev. 404 ft)
Last Update:
4:53 pm EDT Sep 19, 2026
Forecast Valid:
6pm EDT Sep 19, 2026-6pm EDT Sep 26, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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