National Weather Service Forecast for: Catonsville MD
Issued by: National Weather Service Baltimore, MD/Washington, D.C.
Updated: 10:30 pm EDT Jul 8, 2025
 
Tonight

Tonight: A slight chance of showers and thunderstorms.  Mostly cloudy, with a low around 72. Light southwest wind.  Chance of precipitation is 20%.
Slight Chance
T-storms

Wednesday

Wednesday: A chance of showers and thunderstorms after 3pm.  Mostly sunny, with a high near 90. Light and variable wind.  Chance of precipitation is 30%.
Mostly Sunny
then Chance
T-storms
Wednesday
Night
Wednesday Night: A chance of showers and thunderstorms. Some of the storms could produce heavy rainfall.  Mostly cloudy, with a low around 72. South wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 50%.
Heavy Rain
then Chance
Showers
Thursday

Thursday: Showers and thunderstorms likely, mainly between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm.  Mostly cloudy, with a high near 86. South wind 3 to 5 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms then
T-storms
Likely
Thursday
Night
Thursday 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 71. Light southwest wind.  Chance of precipitation is 60%.
Showers
Likely

Friday

Friday: A chance of showers between 8am and 11am, then a chance of showers and thunderstorms after 11am.  Partly sunny, with a high near 88. Chance of precipitation is 50%.
Chance
Showers then
Chance
T-storms
Friday
Night
Friday Night: A chance of showers and thunderstorms before 2am.  Mostly cloudy, with a low around 72. Chance of precipitation is 30%.
Chance
T-storms

Saturday

Saturday: A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 89. Chance of precipitation is 50%.
Chance
Showers then
Chance
T-storms
Saturday
Night
Saturday Night: A chance of showers and thunderstorms before 2am.  Mostly cloudy, with a low around 72. Chance of precipitation is 30%.
Chance
T-storms

Lo 72 °F Hi 90 °F Lo 72 °F Hi 86 °F Lo 71 °F Hi 88 °F Lo 72 °F Hi 89 °F Lo 72 °F

Hazardous Weather Outlook
Flood Watch
 

Tonight
 
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Light southwest wind. Chance of precipitation is 20%.
Wednesday
 
A chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 90. Light and variable wind. Chance of precipitation is 30%.
Wednesday Night
 
A chance of showers and thunderstorms. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 72. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.
Thursday
 
Showers and thunderstorms likely, mainly between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 86. South wind 3 to 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday 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 71. Light southwest wind. Chance of precipitation is 60%.
Friday
 
A chance of showers between 8am and 11am, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 88. Chance of precipitation is 50%.
Friday Night
 
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 30%.
Saturday
 
A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 50%.
Saturday Night
 
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 30%.
Sunday
 
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 50%.
Sunday Night
 
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.
Monday
 
A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 50%.
Monday Night
 
A chance of thunderstorms. Partly cloudy, with a low around 71. Chance of precipitation is 30%.
Tuesday
 
A chance of showers. Mostly sunny, with a high near 89. Chance of precipitation is 40%.

 

Forecast from NOAA-NWS for Catonsville MD.