Severe Thunderstorms in the Ohio and Tennessee Valleys; Flash Flooding Possible in the Southwest

Scattered damaging winds, isolated severe hail, and a brief tornado or two are possible from the Upper Ohio to Tennessee Valleys during the late afternoon and evening. Across the Southwest, monsoonal moisture will continue to bring heavy rain and a threat for isolated to scattered flash flooding through Saturday. Read More >

Hazardous Weather Conditions

Current conditions at

Baltimore, Inner Harbor (KDMH)

Lat: 39.28°NLon: 76.62°WElev: 20ft.

78°F

26°C

Humidity 71%
Wind Speed NA
Barometer 29.90 in (1012.5 mb)
Dewpoint 68°F (20°C)
Visibility NA
Heat Index80°F (27°C)
Last update 6 Sep 4:53 pm EDT
Extended Forecast for

Catonsville MD

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm. Some of the storms could be severe.  Steady temperature around 77. Northwest wind around 8 mph.  Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: Showers and thunderstorms likely before 5am, then a chance of showers. Some of the storms could be severe.  Mostly cloudy, with a low around 60. Northwest wind 3 to 6 mph.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Severe
    Thunderstorms
    then Chance
    Showers

  • Sunday

    Sunday: A chance of showers, mainly before 8am.  Cloudy through mid morning, then gradual clearing, with a high near 75. Northwest wind around 6 mph.  Chance of precipitation is 30%.

    High: 75 °F

    Chance
    Showers then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 53. Northwest wind around 6 mph.

    Low: 53 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 74. North wind around 6 mph.

    High: 74 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 74.

    High: 74 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. Some of the storms could be severe. Steady temperature around 77. Northwest wind around 8 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely before 5am, then a chance of showers. Some of the storms could be severe. Mostly cloudy, with a low around 60. Northwest wind 3 to 6 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 75. Northwest wind around 6 mph. Chance of precipitation is 30%.
Sunday Night
Mostly clear, with a low around 53. Northwest wind around 6 mph.
Monday
Sunny, with a high near 74. North wind around 6 mph.
Monday Night
Mostly clear, with a low around 53.
Tuesday
Mostly sunny, with a high near 74.
Tuesday Night
Mostly cloudy, with a low around 56.
Wednesday
Mostly cloudy, with a high near 74.
Wednesday Night
Partly cloudy, with a low around 56.
Thursday
Sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 57.
Friday
Sunny, with a high near 76.
Friday Night
Mostly clear, with a low around 53.
Saturday
Sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
Catonsville MD
 39.28°N 76.73°W (Elev. 459 ft)
4:31 pm EDT Sep 6, 2025
5pm EDT Sep 6, 2025-6pm EDT Sep 13, 2025
 
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Additional Resources

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Hourly Weather Forecast

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