National Weather Service Forecast for: Bel Air South MD
Issued by: National Weather Service Baltimore, MD/Washington, D.C.
Updated: 2:22 pm EDT Mar 19, 2026
 
Tonight

Tonight: Partly cloudy, with a low around 35. South wind around 5 mph becoming calm in the evening.
Partly Cloudy

 Friday

Friday: Scattered showers after 2pm. Increasing clouds, with a high near 59. Light southeast wind becoming south 9 to 14 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 40%.
Sunny then
Scattered
Showers
 Friday
Night
Friday Night: Showers likely, mainly between 8pm and 2am. Cloudy, then gradually becoming partly cloudy, with a low around 46. Southwest wind 6 to 9 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Showers
Likely
 Saturday

Saturday: Mostly sunny, with a high near 62. Northwest wind around 7 mph.
Mostly Sunny

 Saturday
Night
Saturday Night: Mostly cloudy, with a low around 43. Calm wind.
Mostly Cloudy

 Sunday

Sunday: Partly sunny, with a high near 66.
Partly Sunny

 Sunday
Night
Sunday Night: A chance of rain after 2am. Mostly cloudy, with a low around 47. Chance of precipitation is 40%.
Mostly Cloudy
then Chance
Rain
 Monday

Monday: A chance of rain before 8am. Partly sunny, with a high near 58. Chance of precipitation is 30%.
Chance Rain
then Mostly
Sunny
 Monday
Night
Monday Night: Mostly clear, with a low around 29.
Mostly Clear
Lo 35 °F Hi 59 °F Lo 46 °F Hi 62 °F Lo 43 °F Hi 66 °F Lo 47 °F Hi 58 °F Lo 29 °F

 

Tonight
 
 Partly cloudy, with a low around 35. South wind around 5 mph becoming calm in the evening.
Friday
 
 Scattered showers after 2pm. Increasing clouds, with a high near 59. Light southeast wind becoming south 9 to 14 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 40%.
Friday Night
 
 Showers likely, mainly between 8pm and 2am. Cloudy, then gradually becoming partly cloudy, with a low around 46. Southwest wind 6 to 9 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
 
 Mostly sunny, with a high near 62. Northwest wind around 7 mph.
Saturday Night
 
 Mostly cloudy, with a low around 43. Calm wind.
Sunday
 
 Partly sunny, with a high near 66.
Sunday Night
 
 A chance of rain after 2am. Mostly cloudy, with a low around 47. Chance of precipitation is 40%.
Monday
 
 A chance of rain before 8am. Partly sunny, with a high near 58. Chance of precipitation is 30%.
Monday Night
 
 Mostly clear, with a low around 29.
Tuesday
 
 Sunny, with a high near 47.
Tuesday Night
 
 Mostly cloudy, with a low around 35.
Wednesday
 
 Mostly cloudy, with a high near 51.
Wednesday Night
 
 Mostly cloudy, with a low around 36.
Thursday
 
 Partly sunny, with a high near 57.

 

Forecast from NOAA-NWS for Bel Air South MD.