National Weather Service Forecast for: Portland ME
Issued by: National Weather Service Gray/Portland, ME
Updated: 11:44 pm EST Dec 16, 2025
 
Overnight

Overnight: Mostly cloudy, with a low around 27. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Mostly Cloudy

 Wednesday

Wednesday: Mostly sunny, with a high near 40. Southwest wind around 15 mph, with gusts as high as 30 mph.
Mostly Sunny

 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 28. West wind 5 to 15 mph, with gusts as high as 25 mph.
Mostly Clear

 Thursday

Thursday: Mostly sunny, with a high near 45. South wind 5 to 15 mph, with gusts as high as 20 mph.
Mostly Sunny

 Thursday
Night
Thursday Night: Rain likely, mainly after 3am. Mostly cloudy, with a low around 39. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Mostly Cloudy
then Rain
Likely
 Friday

Friday: Rain, mainly before 5pm. High near 51. Breezy. Chance of precipitation is 100%.
Rain and
Breezy
 Friday
Night
Friday Night: A 30 percent chance of rain before 7pm. Partly cloudy, with a low around 25.
Chance Rain
then Partly
Cloudy
 Saturday

Saturday: Mostly sunny, with a high near 36.
Mostly Sunny

 Saturday
Night
Saturday Night: A chance of snow between 10pm and 4am, then a chance of rain after 4am. Mostly cloudy, with a low around 30. Chance of precipitation is 40%.
Chance Snow
then Chance
Rain/Snow
Lo 27 °F Hi 40 °F Lo 28 °F Hi 45 °F Lo 39 °F Hi 51 °F Lo 25 °F Hi 36 °F Lo 30 °F

Hazardous Weather Outlook
 

Overnight
 
 Mostly cloudy, with a low around 27. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
 
 Mostly sunny, with a high near 40. Southwest wind around 15 mph, with gusts as high as 30 mph.
Wednesday Night
 
 Mostly clear, with a low around 28. West wind 5 to 15 mph, with gusts as high as 25 mph.
Thursday
 
 Mostly sunny, with a high near 45. South wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday Night
 
 Rain likely, mainly after 3am. Mostly cloudy, with a low around 39. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Friday
 
 Rain, mainly before 5pm. High near 51. Breezy. Chance of precipitation is 100%.
Friday Night
 
 A 30 percent chance of rain before 7pm. Partly cloudy, with a low around 25.
Saturday
 
 Mostly sunny, with a high near 36.
Saturday Night
 
 A chance of snow between 10pm and 4am, then a chance of rain after 4am. Mostly cloudy, with a low around 30. Chance of precipitation is 40%.
Sunday
 
 A 30 percent chance of rain before 7am. Partly sunny, with a high near 42.
Sunday Night
 
 Partly cloudy, with a low around 21.
Monday
 
 Sunny, with a high near 30.
Monday Night
 
 Partly cloudy, with a low around 16.
Tuesday
 
 A 30 percent chance of snow. Partly sunny, with a high near 33.

 

Forecast from NOAA-NWS for Portland ME.