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National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
7-Day Forecast 39.28°N 76.73°W (Text-Only)
NWS Forecast for: Catonsville MD
Issued by: National Weather Service Baltimore, MD/Washington, D.C.
Last Update: 8:01 am EDT Jun 30, 2026		Print

  • Today

    Today: Sunny, with a high near 89. Calm wind becoming south 5 to 9 mph in the morning.

    High: 89 °F

    Sunny


  • Tonight

    Tonight: Mostly clear, with a low around 70. South wind 7 to 9 mph, with gusts as high as 20 mph.

    Low: 70 °F

    Mostly Clear


  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 96. Heat index values as high as 104. Southwest wind 5 to 7 mph. Chance of precipitation is 30%.

    High: 96 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday
    Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm. Mostly cloudy, then gradually becoming clear, with a low around 76. South wind around 6 mph. Chance of precipitation is 30%.

    Low: 76 °F

    Chance
    Showers then
    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 102. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 102 °F

    Hot


  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 79.

    Low: 79 °F

    Mostly Clear


  • Friday

    Friday: A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 102. Chance of precipitation is 30%.

    High: 102 °F

    Sunny then
    Chance
    T-storms

  • Friday
    Night

    Friday Night: A chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 77. Chance of precipitation is 30%.

    Low: 77 °F

    Chance
    T-storms

  • Independence
    Day

    Independence Day: A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 100. Chance of precipitation is 50%.

    High: 100 °F

    Mostly Sunny
    then Chance
    T-storms



    • Today: Sunny, with a high near 89. Calm wind becoming south 5 to 9 mph in the morning.

    Tonight: Mostly clear, with a low around 70. South wind 7 to 9 mph, with gusts as high as 20 mph.

    Wednesday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 96. Heat index values as high as 104. Southwest wind 5 to 7 mph. Chance of precipitation is 30%.

    Wednesday Night: A chance of showers and thunderstorms before 8pm. Mostly cloudy, then gradually becoming clear, with a low around 76. South wind around 6 mph. Chance of precipitation is 30%.

    Thursday: Sunny and hot, with a high near 102. Calm wind becoming southwest around 6 mph in the afternoon.

    Thursday Night: Mostly clear, with a low around 79.

    Friday: A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 102. Chance of precipitation is 30%.

    Friday Night: A chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 77. Chance of precipitation is 30%.

    Independence Day: A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 100. Chance of precipitation is 50%.

    Saturday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 74. Chance of precipitation is 30%.

    Sunday: A chance of showers and thunderstorms. Partly sunny, with a high near 94. Chance of precipitation is 50%.

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 40%.

    Monday: A chance of showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 40%.


    Catonsville MD
     39.28°N 76.73°W (Elev. 459 ft)

    Visit your local NWS office at: https://www.weather.gov/lwx