National Weather Service Forecast for: Belfast ME
Issued by: National Weather Service Gray/Portland, ME
Updated: 6:07 am EDT May 29, 2026
 
Today

Today: Partly sunny, with a high near 63. North wind around 5 mph becoming south in the afternoon.
Partly Sunny

 Tonight

Tonight: Rain likely, mainly between 9pm and 2am. Cloudy, with a low around 40. Light and variable wind becoming east 5 to 10 mph after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Rain Likely

 Saturday

Saturday: A chance of rain before 1pm, then a slight chance of showers between 1pm and 2pm. Mostly cloudy, with a high near 57. Northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Chance Rain

 Saturday
Night
Saturday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 38. Calm wind.
Decreasing
Clouds
 Sunday

Sunday: A 40 percent chance of showers after 2pm. Mostly sunny, with a high near 66. Calm wind becoming south around 5 mph in the afternoon.
Sunny then
Chance
Showers
 Sunday
Night
Sunday Night: Showers likely, mainly after 4am. Mostly cloudy, with a low around 44. Chance of precipitation is 60%.
Showers
Likely
 Monday

Monday: Showers likely, mainly before 8am. Partly sunny, with a high near 62. Chance of precipitation is 60%.
Showers
Likely
 Monday
Night
Monday Night: A 30 percent chance of showers before 10pm. Mostly cloudy, with a low around 43.
Chance
Showers then
Mostly Cloudy
 Tuesday

Tuesday: A 40 percent chance of showers after 8am. Partly sunny, with a high near 62.
Chance
Showers
Hi 63 °F Lo 40 °F Hi 57 °F Lo 38 °F Hi 66 °F Lo 44 °F Hi 62 °F Lo 43 °F Hi 62 °F

 

Today
 
 Partly sunny, with a high near 63. North wind around 5 mph becoming south in the afternoon.
Tonight
 
 Rain likely, mainly between 9pm and 2am. Cloudy, with a low around 40. Light and variable wind becoming east 5 to 10 mph after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
 
 A chance of rain before 1pm, then a slight chance of showers between 1pm and 2pm. Mostly cloudy, with a high near 57. Northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
 
 Mostly cloudy, then gradually becoming mostly clear, with a low around 38. Calm wind.
Sunday
 
 A 40 percent chance of showers after 2pm. Mostly sunny, with a high near 66. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
 
 Showers likely, mainly after 4am. Mostly cloudy, with a low around 44. Chance of precipitation is 60%.
Monday
 
 Showers likely, mainly before 8am. Partly sunny, with a high near 62. Chance of precipitation is 60%.
Monday Night
 
 A 30 percent chance of showers before 10pm. Mostly cloudy, with a low around 43.
Tuesday
 
 A 40 percent chance of showers after 8am. Partly sunny, with a high near 62.
Tuesday Night
 
 A 30 percent chance of showers before 10pm. Mostly cloudy, with a low around 44.
Wednesday
 
 A 30 percent chance of showers. Mostly sunny, with a high near 65.
Wednesday Night
 
 A 30 percent chance of showers. Partly cloudy, with a low around 47.
Thursday
 
 Mostly sunny, with a high near 72.

 

Forecast from NOAA-NWS for Belfast ME.