National Weather Service Forecast for: Chillum MD
Issued by: National Weather Service Baltimore, MD/Washington, D.C.
Updated: 6:56 am EST Dec 18, 2025
 
Today

Today: A slight chance of rain after 3pm. Increasing clouds, with a high near 53. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 20%.
Sunny then
Slight Chance
Rain
 Tonight

Tonight: Rain, mainly after 10pm. Temperature rising to around 57 by 4am. South wind 7 to 15 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Rain

 Friday

Friday: Rain likely, mainly before 9am. Cloudy through mid morning, then gradual clearing, with a temperature falling to around 38 by 5pm. West wind 15 to 18 mph, with gusts as high as 40 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Rain Likely
then Mostly
Sunny
 Friday
Night
Friday Night: Mostly clear, with a low around 28. West wind 5 to 13 mph, with gusts as high as 32 mph.
Mostly Clear

 Saturday

Saturday: Mostly sunny, with a high near 45. Calm wind becoming south 5 to 9 mph in the morning.
Mostly Sunny

 Saturday
Night
Saturday Night: Partly cloudy, with a low around 38.
Partly Cloudy

 Sunday

Sunday: Mostly sunny, with a high near 51.
Mostly Sunny

 Sunday
Night
Sunday Night: Mostly clear, with a low around 25.
Mostly Clear

 Monday

Monday: Mostly sunny, with a high near 39.
Mostly Sunny
Hi 53 °F Lo 48 °F⇑ Hi 55 °F⇓ Lo 28 °F Hi 45 °F Lo 38 °F Hi 51 °F Lo 25 °F Hi 39 °F

Hazardous Weather Outlook
 

Today
 
 A slight chance of rain after 3pm. Increasing clouds, with a high near 53. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 20%.
Tonight
 
 Rain, mainly after 10pm. Temperature rising to around 57 by 4am. South wind 7 to 15 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Friday
 
 Rain likely, mainly before 9am. Cloudy through mid morning, then gradual clearing, with a temperature falling to around 38 by 5pm. West wind 15 to 18 mph, with gusts as high as 40 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
 
 Mostly clear, with a low around 28. West wind 5 to 13 mph, with gusts as high as 32 mph.
Saturday
 
 Mostly sunny, with a high near 45. Calm wind becoming south 5 to 9 mph in the morning.
Saturday Night
 
 Partly cloudy, with a low around 38.
Sunday
 
 Mostly sunny, with a high near 51.
Sunday Night
 
 Mostly clear, with a low around 25.
Monday
 
 Mostly sunny, with a high near 39.
Monday Night
 
 Mostly cloudy, with a low around 29.
Tuesday
 
 Mostly cloudy, with a high near 45.
Tuesday Night
 
 Mostly cloudy, with a low around 37.
Wednesday
 
 Partly sunny, with a high near 52.

 

Forecast from NOAA-NWS for Chillum MD.