National Weather Service Forecast for: Hagerstown MD
Issued by: National Weather Service Baltimore, MD/Washington, D.C.
Updated: 2:22 am EDT Aug 20, 2026
 
Overnight

Overnight: Isolated showers and thunderstorms after 5am. Mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 20%.
Isolated
T-storms

 Thursday

Thursday: Showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then scattered showers and thunderstorms after 5pm. High near 79. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Scattered
T-storms then
Showers

 Thursday
Night
Thursday Night: Scattered showers and thunderstorms before 8pm. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 63. North wind 3 to 6 mph. Chance of precipitation is 30%.
Scattered
Showers and
Patchy Fog
then Patchy
Fog
 Friday

Friday: Mostly sunny, with a high near 80. North wind around 5 mph becoming light and variable.
Mostly Sunny


 Friday
Night
Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 66. Light east wind. Chance of precipitation is 60%.
Chance
Showers then
Showers
Likely
 Saturday

Saturday: Showers likely before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.
Showers
Likely

 Saturday
Night
Saturday Night: Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Showers
Likely then
Chance
Showers
 Sunday

Sunday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 82. Chance of precipitation is 20%.
Mostly Sunny
then Slight
Chance
T-storms
 Sunday
Night
Sunday Night: Mostly clear, with a low around 60.
Mostly Clear
Lo 67 °F Hi 79 °F Lo 63 °F Hi 80 °F Lo 66 °F Hi 82 °F Lo 65 °F Hi 82 °F Lo 60 °F

Hazardous Weather Outlook
 

Overnight
 
 Isolated showers and thunderstorms after 5am. Mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 20%.
Thursday
 
 Showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then scattered showers and thunderstorms after 5pm. High near 79. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
 
 Scattered showers and thunderstorms before 8pm. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 63. North wind 3 to 6 mph. Chance of precipitation is 30%.
Friday
 
 Mostly sunny, with a high near 80. North wind around 5 mph becoming light and variable.
Friday Night
 
 A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 66. Light east wind. Chance of precipitation is 60%.
Saturday
 
 Showers likely before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.
Saturday Night
 
 Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Sunday
 
 A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 82. Chance of precipitation is 20%.
Sunday Night
 
 Mostly clear, with a low around 60.
Monday
 
 Sunny, with a high near 80.
Monday Night
 
 Mostly clear, with a low around 59.
Tuesday
 
 Sunny, with a high near 82.
Tuesday Night
 
 Partly cloudy, with a low around 63.
Wednesday
 
 A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84. Chance of precipitation is 20%.

 

Forecast from NOAA-NWS for Hagerstown MD.