National Weather Service Forecast for: Leominster MA
Issued by: National Weather Service Norton, MA
Updated: 12:46 am EDT Jun 30, 2026
 
Overnight

Overnight: Mostly clear, with a low around 62. Calm wind.
Mostly Clear

Tuesday

Tuesday: Mostly sunny and hot, with a high near 91. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Hot

Tuesday
Night
Tuesday Night: A chance of showers and thunderstorms, mainly between 9pm and 1am.  Mostly cloudy, with a low around 70. South wind 6 to 9 mph.  Chance of precipitation is 50%.
Chance
Showers

Wednesday

Wednesday: A slight chance of showers and thunderstorms after 3pm.  Mostly sunny and hot, with a high near 98. Heat index values as high as 107. West wind 9 to 11 mph, with gusts as high as 22 mph.  Chance of precipitation is 20%.
Mostly Sunny
then Slight
Chance
T-storms
Wednesday
Night
Wednesday Night: A chance of showers and thunderstorms, mainly before 1am.  Partly cloudy, with a low around 77. West wind 3 to 7 mph.  Chance of precipitation is 30%.
Chance
Showers

Thursday

Thursday: Sunny and hot, with a high near 100. Northwest wind 6 to 9 mph.
Hot

Thursday
Night
Thursday Night: Mostly clear, with a low around 74. West wind 5 to 8 mph.
Mostly Clear

Friday

Friday: Sunny and hot, with a high near 101. West wind 7 to 11 mph, with gusts as high as 22 mph.
Hot

Friday
Night
Friday Night: Mostly clear, with a low around 72. West wind 3 to 6 mph.
Mostly Clear

Lo 62 °F Hi 91 °F Lo 70 °F Hi 98 °F Lo 77 °F Hi 100 °F Lo 74 °F Hi 101 °F Lo 72 °F

Extreme Heat Watch
 

Overnight
 
Mostly clear, with a low around 62. Calm wind.
Tuesday
 
Mostly sunny and hot, with a high near 91. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Tuesday Night
 
A chance of showers and thunderstorms, mainly between 9pm and 1am. Mostly cloudy, with a low around 70. South wind 6 to 9 mph. Chance of precipitation is 50%.
Wednesday
 
A slight chance of showers and thunderstorms after 3pm. Mostly sunny and hot, with a high near 98. Heat index values as high as 107. West wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Wednesday Night
 
A chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 77. West wind 3 to 7 mph. Chance of precipitation is 30%.
Thursday
 
Sunny and hot, with a high near 100. Northwest wind 6 to 9 mph.
Thursday Night
 
Mostly clear, with a low around 74. West wind 5 to 8 mph.
Friday
 
Sunny and hot, with a high near 101. West wind 7 to 11 mph, with gusts as high as 22 mph.
Friday Night
 
Mostly clear, with a low around 72. West wind 3 to 6 mph.
Independence Day
 
A chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 98. West wind 3 to 8 mph. Chance of precipitation is 30%.
Saturday Night
 
A chance of showers and thunderstorms. Partly cloudy, with a low around 70. Light west wind. Chance of precipitation is 30%.
Sunday
 
Mostly sunny and hot, with a high near 90. Calm wind becoming northwest around 6 mph in the afternoon.
Sunday Night
 
Partly cloudy, with a low around 65. Calm wind.
Monday
 
A chance of showers. Partly sunny, with a high near 85. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 30%.

 

Forecast from NOAA-NWS for Leominster MA.