National Weather Service Forecast for: Catonsville MD
Issued by: National Weather Service Baltimore, MD/Washington, D.C.
Updated: 12:53 am EST Dec 5, 2025
 
Overnight

Overnight: A chance of snow after 4am.  Cloudy, with a low around 21. Northeast wind around 6 mph.  Chance of precipitation is 40%.
Chance Snow

Friday

Friday: Snow likely, mainly between 7am and 9am.  Cloudy, with a high near 32. East wind around 5 mph becoming calm  in the morning.  Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Snow Likely
then Chance
Snow
Friday
Night
Friday Night: Patchy fog between 9pm and 1am.  Otherwise, mostly cloudy, with a low around 24. Calm wind.
Patchy Fog

Saturday

Saturday: Mostly sunny, with a high near 42. Calm wind becoming southwest around 5 mph.
Mostly Sunny

Saturday
Night
Saturday Night: Partly cloudy, with a low around 27. Light and variable wind.
Partly Cloudy

Sunday

Sunday: Partly sunny, with a high near 41.
Partly Sunny

Sunday
Night
Sunday Night: Mostly cloudy, with a low around 25.
Mostly Cloudy

Monday

Monday: Mostly sunny, with a high near 33.
Mostly Sunny

Monday
Night
Monday Night: Mostly clear, with a low around 19.
Mostly Clear

Lo 21 °F Hi 32 °F Lo 24 °F Hi 42 °F Lo 27 °F Hi 41 °F Lo 25 °F Hi 33 °F Lo 19 °F

Hazardous Weather Outlook
Winter Weather Advisory
 

Overnight
 
A chance of snow after 4am. Cloudy, with a low around 21. Northeast wind around 6 mph. Chance of precipitation is 40%.
Friday
 
Snow likely, mainly between 7am and 9am. Cloudy, with a high near 32. East wind around 5 mph becoming calm in the morning. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Friday Night
 
Patchy fog between 9pm and 1am. Otherwise, mostly cloudy, with a low around 24. Calm wind.
Saturday
 
Mostly sunny, with a high near 42. Calm wind becoming southwest around 5 mph.
Saturday Night
 
Partly cloudy, with a low around 27. Light and variable wind.
Sunday
 
Partly sunny, with a high near 41.
Sunday Night
 
Mostly cloudy, with a low around 25.
Monday
 
Mostly sunny, with a high near 33.
Monday Night
 
Mostly clear, with a low around 19.
Tuesday
 
Mostly sunny, with a high near 36.
Tuesday Night
 
Mostly cloudy, with a low around 29.
Wednesday
 
Mostly cloudy, with a high near 45.
Wednesday Night
 
A chance of rain. Mostly cloudy, with a low around 36. Chance of precipitation is 40%.
Thursday
 
A chance of rain. Partly sunny, with a high near 43. Chance of precipitation is 30%.

 

Forecast from NOAA-NWS for Catonsville MD.