National Weather Service Forecast for: Belfast ME
Issued by: National Weather Service Gray/Portland, ME
Updated: 2:18 am EDT Jun 22, 2026
 
Today

Today: Areas of fog before 9am. Otherwise, mostly cloudy, with a high near 72. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.
Areas Fog
then Partly
Sunny

 Tonight

Tonight: Showers likely, mainly between 11pm and 1am, then rain after 1am. Low around 52. Calm wind becoming southeast around 5 mph after midnight. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Showers
Likely then
Rain

 Tuesday

Tuesday: Showers likely before noon, then rain between noon and 2pm, then scattered showers after 2pm. High near 69. Southeast wind 5 to 10 mph becoming north in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Rain


 Tuesday
Night
Tuesday Night: Scattered showers before 7pm. Patchy fog between 9pm and 3am. Otherwise, partly cloudy, with a low around 55. Calm wind becoming northwest around 5 mph. Chance of precipitation is 30%.
Scattered
Showers and
Patchy Fog
then Patchy
Fog
 Wednesday

Wednesday: Sunny, with a high near 76. West wind 5 to 10 mph, with gusts as high as 20 mph.
Sunny


 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 56.
Mostly Clear


 Thursday

Thursday: Mostly sunny, with a high near 79.
Mostly Sunny


 Thursday
Night
Thursday Night: A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 54.
Mostly Cloudy
then Chance
Showers

 Friday

Friday: Showers likely. Mostly cloudy, with a high near 72. Chance of precipitation is 70%.
Showers
Likely
Hi 72 °F Lo 52 °F Hi 69 °F Lo 55 °F Hi 76 °F Lo 56 °F Hi 79 °F Lo 54 °F Hi 72 °F

 

Today
 
 Areas of fog before 9am. Otherwise, mostly cloudy, with a high near 72. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.
Tonight
 
 Showers likely, mainly between 11pm and 1am, then rain after 1am. Low around 52. Calm wind becoming southeast around 5 mph after midnight. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday
 
 Showers likely before noon, then rain between noon and 2pm, then scattered showers after 2pm. High near 69. Southeast wind 5 to 10 mph becoming north in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday Night
 
 Scattered showers before 7pm. Patchy fog between 9pm and 3am. Otherwise, partly cloudy, with a low around 55. Calm wind becoming northwest around 5 mph. Chance of precipitation is 30%.
Wednesday
 
 Sunny, with a high near 76. West wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
 
 Mostly clear, with a low around 56.
Thursday
 
 Mostly sunny, with a high near 79.
Thursday Night
 
 A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 54.
Friday
 
 Showers likely. Mostly cloudy, with a high near 72. Chance of precipitation is 70%.
Friday Night
 
 Showers likely, mainly before 10pm. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.
Saturday
 
 A 30 percent chance of showers. Partly sunny, with a high near 80.
Saturday Night
 
 Partly cloudy, with a low around 58.
Sunday
 
 A 30 percent chance of showers. Mostly sunny, with a high near 80.

 

Forecast from NOAA-NWS for Belfast ME.