National Weather Service Forecast for: Olney MD
Issued by: National Weather Service Baltimore, MD/Washington, D.C.
Updated: 12:53 am EST Dec 23, 2025
 
Overnight

Overnight: A slight chance of snow between 3am and 4am, then a chance of rain. Cloudy, with a low around 35. South wind around 7 mph. Chance of precipitation is 30%.
Chance
Rain/Snow

 Tuesday

Tuesday: Rain likely, mainly before 8am. Mostly cloudy, with a high near 48. South wind 5 to 9 mph becoming southwest in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Rain Likely
then Partly
Sunny
 Tuesday
Night
Tuesday Night: Mostly cloudy, then gradually becoming clear, with a low around 38. Northwest wind 6 to 10 mph, with gusts as high as 20 mph.
Decreasing
Clouds

 Wednesday

Wednesday: Mostly sunny, with a high near 49. Northwest wind 6 to 14 mph, with gusts as high as 25 mph.
Mostly Sunny

 Wednesday
Night
Wednesday Night: A slight chance of rain and snow between 1am and 4am, then a slight chance of rain after 4am. Mostly cloudy, with a low around 33. Light and variable wind. Chance of precipitation is 20%.
Mostly Cloudy
then Slight
Chance
Rain/Snow
 Christmas
Day
Christmas Day: A slight chance of rain before 1pm. Mostly cloudy, with a high near 49. Chance of precipitation is 20%.
Slight Chance
Rain

 Thursday
Night
Thursday Night: Mostly cloudy, with a low around 31.
Mostly Cloudy

 Friday

Friday: Rain or freezing rain likely before 1pm, then rain. High near 37. Chance of precipitation is 80%.
Rain/Freezing
Rain

 Friday
Night
Friday Night: Rain likely, mainly before 1am. Cloudy, with a low around 32. Chance of precipitation is 70%.
Rain Likely
Lo 35 °F Hi 48 °F Lo 38 °F Hi 49 °F Lo 33 °F Hi 49 °F Lo 31 °F Hi 37 °F Lo 32 °F

 

Overnight
 
 A slight chance of snow between 3am and 4am, then a chance of rain. Cloudy, with a low around 35. South wind around 7 mph. Chance of precipitation is 30%.
Tuesday
 
 Rain likely, mainly before 8am. Mostly cloudy, with a high near 48. South wind 5 to 9 mph becoming southwest in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
 
 Mostly cloudy, then gradually becoming clear, with a low around 38. Northwest wind 6 to 10 mph, with gusts as high as 20 mph.
Wednesday
 
 Mostly sunny, with a high near 49. Northwest wind 6 to 14 mph, with gusts as high as 25 mph.
Wednesday Night
 
 A slight chance of rain and snow between 1am and 4am, then a slight chance of rain after 4am. Mostly cloudy, with a low around 33. Light and variable wind. Chance of precipitation is 20%.
Christmas Day
 
 A slight chance of rain before 1pm. Mostly cloudy, with a high near 49. Chance of precipitation is 20%.
Thursday Night
 
 Mostly cloudy, with a low around 31.
Friday
 
 Rain or freezing rain likely before 1pm, then rain. High near 37. Chance of precipitation is 80%.
Friday Night
 
 Rain likely, mainly before 1am. Cloudy, with a low around 32. Chance of precipitation is 70%.
Saturday
 
 Cloudy, with a high near 46.
Saturday Night
 
 A chance of rain. Cloudy, with a low around 37. Chance of precipitation is 30%.
Sunday
 
 A chance of rain. Cloudy, with a high near 53. Chance of precipitation is 50%.
Sunday Night
 
 A chance of rain. Mostly cloudy, with a low around 23. Chance of precipitation is 30%.
Monday
 
 Mostly sunny, with a high near 31.

 

Forecast from NOAA-NWS for Olney MD.