National Weather Service Forecast for: Chillum MD
Issued by: National Weather Service Baltimore, MD/Washington, D.C.
Updated: 4:30 pm EDT Jun 18, 2025
 
Tonight

Tonight: Scattered showers and thunderstorms before 8pm. Partly cloudy, with a low around 72. West wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 40%.
Scattered
T-storms then
Mostly Clear
 Juneteenth

Juneteenth: A chance of showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then showers and thunderstorms likely after 5pm. Sunny, with a high near 93. Southwest wind 6 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunny then
T-storms
Likely
 Thursday
Night
Thursday Night: Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 66. Southwest wind 6 to 9 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
T-storms
Likely then
Slight Chance
Showers
 Friday

Friday: Sunny, with a high near 86. Northwest wind around 8 mph.
Sunny

 Friday
Night
Friday Night: Partly cloudy, with a low around 67. Light west wind.
Partly Cloudy

 Saturday

Saturday: Sunny, with a high near 91.
Sunny

 Saturday
Night
Saturday Night: Partly cloudy, with a low around 72.
Partly Cloudy

 Sunday

Sunday: Mostly sunny, with a high near 96.
Mostly Sunny

 Sunday
Night
Sunday Night: Mostly clear, with a low around 76.
Mostly Clear
Lo 72 °F Hi 93 °F Lo 66 °F Hi 86 °F Lo 67 °F Hi 91 °F Lo 72 °F Hi 96 °F Lo 76 °F

Hazardous Weather Outlook
Flood Watch
 

Tonight
 
 Scattered showers and thunderstorms before 8pm. Partly cloudy, with a low around 72. West wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 40%.
Juneteenth
 
 A chance of showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then showers and thunderstorms likely after 5pm. Sunny, with a high near 93. Southwest wind 6 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
 
 Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 66. Southwest wind 6 to 9 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
 
 Sunny, with a high near 86. Northwest wind around 8 mph.
Friday Night
 
 Partly cloudy, with a low around 67. Light west wind.
Saturday
 
 Sunny, with a high near 91.
Saturday Night
 
 Partly cloudy, with a low around 72.
Sunday
 
 Mostly sunny, with a high near 96.
Sunday Night
 
 Mostly clear, with a low around 76.
Monday
 
 Sunny and hot, with a high near 99.
Monday Night
 
 Mostly clear, with a low around 77.
Tuesday
 
 Sunny and hot, with a high near 99.
Tuesday Night
 
 Mostly clear, with a low around 77.
Wednesday
 
 Sunny and hot, with a high near 98.

 

Forecast from NOAA-NWS for Chillum MD.