National Weather Service Forecast for: Arlington MA
Issued by: National Weather Service Norton, MA
Updated: 3:27 pm EDT Jul 28, 2026
 
Tonight

Tonight: A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers after 5am. Mostly cloudy, with a low around 66. Southeast wind 6 to 9 mph. Chance of precipitation is 20%.
Slight Chance
T-storms then
Mostly Cloudy
 Wednesday

Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 76. East wind 8 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Heavy Rain

 Wednesday
Night
Wednesday Night: Showers and possibly a thunderstorm. Low around 62. East wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Showers

 Thursday

Thursday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 11am. High near 72. North wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Showers

 Thursday
Night
Thursday Night: Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 62. North wind 6 to 8 mph. Chance of precipitation is 60%.
Showers
Likely then
Chance
Showers
 Friday

Friday: Mostly sunny, with a high near 79. North wind around 7 mph.
Mostly Sunny

 Friday
Night
Friday Night: Mostly clear, with a low around 63. Calm wind.
Mostly Clear

 Saturday

Saturday: Sunny, with a high near 83. Calm wind becoming east 5 to 7 mph in the afternoon.
Sunny

 Saturday
Night
Saturday Night: Partly cloudy, with a low around 67. Southeast wind around 5 mph becoming southwest after midnight.
Partly Cloudy
Lo 66 °F Hi 76 °F Lo 62 °F Hi 72 °F Lo 62 °F Hi 79 °F Lo 63 °F Hi 83 °F Lo 67 °F

 

Tonight
 
 A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers after 5am. Mostly cloudy, with a low around 66. Southeast wind 6 to 9 mph. Chance of precipitation is 20%.
Wednesday
 
 A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 76. East wind 8 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
 
 Showers and possibly a thunderstorm. Low around 62. East wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Thursday
 
 Showers and thunderstorms likely, then showers and possibly a thunderstorm after 11am. High near 72. North wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
 
 Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 62. North wind 6 to 8 mph. Chance of precipitation is 60%.
Friday
 
 Mostly sunny, with a high near 79. North wind around 7 mph.
Friday Night
 
 Mostly clear, with a low around 63. Calm wind.
Saturday
 
 Sunny, with a high near 83. Calm wind becoming east 5 to 7 mph in the afternoon.
Saturday Night
 
 Partly cloudy, with a low around 67. Southeast wind around 5 mph becoming southwest after midnight.
Sunday
 
 Partly sunny, with a high near 85. South wind 5 to 9 mph.
Sunday Night
 
 A chance of showers. Mostly cloudy, with a low around 68. South wind 5 to 7 mph. Chance of precipitation is 30%.
Monday
 
 A chance of showers. Partly sunny, with a high near 83. Southwest wind 5 to 7 mph. Chance of precipitation is 40%.
Monday Night
 
 A chance of showers. Mostly cloudy, with a low around 66. Light west wind. Chance of precipitation is 30%.
Tuesday
 
 Mostly sunny, with a high near 84. North wind 5 to 7 mph becoming east in the afternoon.

 

Forecast from NOAA-NWS for Arlington MA.