National Weather Service Forecast for: Lynn MA
Issued by: National Weather Service Norton, MA
Updated: 2:14 am EDT Jun 30, 2026
 
Overnight

Overnight: Mostly clear, with a low around 66. Southwest wind around 5 mph.
Mostly Clear
Tuesday

Tuesday: Mostly sunny, with a high near 88. Southwest wind 5 to 13 mph becoming southeast in the morning.
Mostly Sunny
Tuesday
Night
Tuesday Night: A chance of showers and thunderstorms, mainly after 10pm.  Mostly cloudy, with a low around 73. South wind 11 to 14 mph.  Chance of precipitation is 40%.
Chance
Showers
Wednesday

Wednesday: Partly sunny and hot, with a high near 97. Heat index values as high as 104. West wind around 14 mph, with gusts as high as 25 mph.
Hot
Wednesday
Night
Wednesday Night: A chance of showers and thunderstorms, mainly before 1am.  Partly cloudy, with a low around 77. Southwest wind 7 to 9 mph.  Chance of precipitation is 30%.
Chance
Showers
Thursday

Thursday: Sunny and hot, with a high near 97. Southwest wind 6 to 8 mph.
Hot
Thursday
Night
Thursday Night: Mostly clear, with a low around 78. West wind around 7 mph.
Mostly Clear
Friday

Friday: Sunny and hot, with a high near 96. West wind 8 to 10 mph.
Hot
Friday
Night
Friday Night: Mostly clear, with a low around 75. West wind 5 to 7 mph.
Mostly Clear
Lo 66 °F Hi 88 °F Lo 73 °F Hi 97 °F Lo 77 °F Hi 97 °F Lo 78 °F Hi 96 °F Lo 75 °F

Extreme Heat Warning
 

Overnight
 
Mostly clear, with a low around 66. Southwest wind around 5 mph.
Tuesday
 
Mostly sunny, with a high near 88. Southwest wind 5 to 13 mph becoming southeast in the morning.
Tuesday Night
 
A chance of showers and thunderstorms, mainly after 10pm. Mostly cloudy, with a low around 73. South wind 11 to 14 mph. Chance of precipitation is 40%.
Wednesday
 
Partly sunny and hot, with a high near 97. Heat index values as high as 104. West wind around 14 mph, with gusts as high as 25 mph.
Wednesday Night
 
A chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 77. Southwest wind 7 to 9 mph. Chance of precipitation is 30%.
Thursday
 
Sunny and hot, with a high near 97. Southwest wind 6 to 8 mph.
Thursday Night
 
Mostly clear, with a low around 78. West wind around 7 mph.
Friday
 
Sunny and hot, with a high near 96. West wind 8 to 10 mph.
Friday Night
 
Mostly clear, with a low around 75. West wind 5 to 7 mph.
Independence Day
 
A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. West wind 5 to 8 mph. Chance of precipitation is 40%.
Saturday Night
 
A chance of showers and thunderstorms. Partly cloudy, with a low around 73. Southwest wind 3 to 5 mph. Chance of precipitation is 30%.
Sunday
 
Mostly sunny, with a high near 87. Northwest wind 5 to 8 mph becoming east in the afternoon.
Sunday Night
 
Partly cloudy, with a low around 67. Southeast wind 3 to 5 mph.
Monday
 
Partly sunny, with a high near 81. Light east wind increasing to 5 to 9 mph in the morning.

 

Forecast from NOAA-NWS for Lynn MA.