National Weather Service Forecast for: Cumberland Mills ME
Issued by: National Weather Service Gray/Portland, ME
Updated: 2:26 am EDT Jun 30, 2026
 
Today

Today: Mostly sunny, with a high near 88. Light southwest wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Mostly Sunny

 Tonight

Tonight: A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am, then a chance of showers and thunderstorms after 2am. Increasing clouds, with a low around 65. Southwest wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
Showers
 Wednesday

Wednesday: A 30 percent chance of showers and thunderstorms, mainly before 4pm. Mostly sunny and hot, with a high near 98. Heat index values as high as 111. Southwest wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
Showers then
Mostly Sunny
 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 73. Southwest wind around 5 mph becoming calm in the evening.
Partly Cloudy

 Thursday

Thursday: Sunny and hot, with a high near 100. Light west wind increasing to 5 to 10 mph in the afternoon.
Hot

 Thursday
Night
Thursday Night: Mostly clear, with a low around 75.
Mostly Clear

 Friday

Friday: Sunny and hot, with a high near 104.
Hot

 Friday
Night
Friday Night: Mostly clear, with a low around 71.
Mostly Clear

 Independence
Day
Independence Day: A 30 percent chance of showers and thunderstorms after 3pm. Mostly sunny and hot, with a high near 92.
Mostly Sunny
then Chance
T-storms
Hi 88 °F Lo 65 °F Hi 98 °F Lo 73 °F Hi 100 °F Lo 75 °F Hi 104 °F Lo 71 °F Hi 92 °F

Extreme Heat Watch
 

Today
 
 Mostly sunny, with a high near 88. Light southwest wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Tonight
 
 A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am, then a chance of showers and thunderstorms after 2am. Increasing clouds, with a low around 65. Southwest wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
 
 A 30 percent chance of showers and thunderstorms, mainly before 4pm. Mostly sunny and hot, with a high near 98. Heat index values as high as 111. Southwest wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
 
 Partly cloudy, with a low around 73. Southwest wind around 5 mph becoming calm in the evening.
Thursday
 
 Sunny and hot, with a high near 100. Light west wind increasing to 5 to 10 mph in the afternoon.
Thursday Night
 
 Mostly clear, with a low around 75.
Friday
 
 Sunny and hot, with a high near 104.
Friday Night
 
 Mostly clear, with a low around 71.
Independence Day
 
 A 30 percent chance of showers and thunderstorms after 3pm. Mostly sunny and hot, with a high near 92.
Saturday Night
 
 A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 67.
Sunday
 
 Mostly sunny and hot, with a high near 91.
Sunday Night
 
 Partly cloudy, with a low around 64.
Monday
 
 Partly sunny, with a high near 85.

 

Forecast from NOAA-NWS for Cumberland Mills ME.