National Weather Service Forecast for: Olney MD
Issued by: National Weather Service Baltimore, MD/Washington, D.C.
Updated: 6:53 am EST Dec 22, 2025
 
Today

Today: Sunny, with a high near 43. Calm wind becoming west around 5 mph in the afternoon.
Sunny

 Tonight

Tonight: A chance of snow before 2am, then a chance of rain and snow between 2am and 4am, then rain likely after 4am. Cloudy, with a low around 33. South wind 3 to 8 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Mostly Cloudy
then
Rain/Snow
Likely
 Tuesday

Tuesday: Mostly cloudy, with a high near 50. South wind 6 to 8 mph.
Mostly Cloudy

 Tuesday
Night
Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 38. West wind 6 to 9 mph, with gusts as high as 20 mph.
Decreasing
Clouds

 Wednesday

Wednesday: Mostly sunny, with a high near 50. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Mostly Sunny

 Wednesday
Night
Wednesday Night: A chance of rain after 1am. Mostly cloudy, with a low around 35. Chance of precipitation is 30%.
Mostly Cloudy
then Chance
Rain
 Christmas
Day
Christmas Day: A chance of rain before 1pm. Mostly cloudy, with a high near 49. Chance of precipitation is 30%.
Chance Rain

 Thursday
Night
Thursday Night: A chance of rain after 1am. Cloudy, with a low around 43. Chance of precipitation is 30%.
Cloudy then
Chance Rain

 Friday

Friday: A chance of rain. Mostly cloudy, with a high near 63. Chance of precipitation is 50%.
Chance Rain
Hi 43 °F Lo 33 °F Hi 50 °F Lo 38 °F Hi 50 °F Lo 35 °F Hi 49 °F Lo 43 °F Hi 63 °F

 

Today
 
 Sunny, with a high near 43. Calm wind becoming west around 5 mph in the afternoon.
Tonight
 
 A chance of snow before 2am, then a chance of rain and snow between 2am and 4am, then rain likely after 4am. Cloudy, with a low around 33. South wind 3 to 8 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Tuesday
 
 Mostly cloudy, with a high near 50. South wind 6 to 8 mph.
Tuesday Night
 
 Mostly cloudy, then gradually becoming mostly clear, with a low around 38. West wind 6 to 9 mph, with gusts as high as 20 mph.
Wednesday
 
 Mostly sunny, with a high near 50. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
 
 A chance of rain after 1am. Mostly cloudy, with a low around 35. Chance of precipitation is 30%.
Christmas Day
 
 A chance of rain before 1pm. Mostly cloudy, with a high near 49. Chance of precipitation is 30%.
Thursday Night
 
 A chance of rain after 1am. Cloudy, with a low around 43. Chance of precipitation is 30%.
Friday
 
 A chance of rain. Mostly cloudy, with a high near 63. Chance of precipitation is 50%.
Friday Night
 
 Mostly cloudy, with a low around 41.
Saturday
 
 Mostly cloudy, with a high near 55.
Saturday Night
 
 Mostly cloudy, with a low around 40.
Sunday
 
 A chance of rain. Mostly cloudy, with a high near 52. Chance of precipitation is 30%.

 

Forecast from NOAA-NWS for Olney MD.