National Weather Service Forecast for: Bellingham WA
Issued by: National Weather Service Seattle, WA
Updated: 11:26 pm PDT Jun 21, 2026
 
Overnight

Overnight: Clear, with a low around 56. Calm wind.
Clear
Monday

Monday: Sunny, with a high near 86. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Sunny
Monday
Night
Monday Night: Partly cloudy, with a low around 59. Light and variable wind.
Partly Cloudy
Tuesday

Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 87. Calm wind becoming west around 5 mph in the afternoon.
Decreasing
Clouds
Tuesday
Night
Tuesday Night: Mostly clear, with a low around 61. Light and variable wind.
Mostly Clear
Wednesday

Wednesday: Mostly sunny, with a high near 84.
Mostly Sunny
Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 58.
Partly Cloudy
Thursday

Thursday: Partly sunny, with a high near 73.
Partly Sunny
Thursday
Night
Thursday Night: Rain likely, mainly after 11pm.  Cloudy, with a low around 54.
Rain Likely
Lo 56 °F Hi 86 °F Lo 59 °F Hi 87 °F Lo 61 °F Hi 84 °F Lo 58 °F Hi 73 °F Lo 54 °F

Heat Advisory
 

Overnight
 
Clear, with a low around 56. Calm wind.
Monday
 
Sunny, with a high near 86. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Monday Night
 
Partly cloudy, with a low around 59. Light and variable wind.
Tuesday
 
Mostly cloudy, then gradually becoming sunny, with a high near 87. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
 
Mostly clear, with a low around 61. Light and variable wind.
Wednesday
 
Mostly sunny, with a high near 84.
Wednesday Night
 
Partly cloudy, with a low around 58.
Thursday
 
Partly sunny, with a high near 73.
Thursday Night
 
Rain likely, mainly after 11pm. Cloudy, with a low around 54.
Friday
 
Rain. Cloudy, with a high near 67.
Friday Night
 
Rain. Mostly cloudy, with a low around 53.
Saturday
 
A chance of rain. Mostly cloudy, with a high near 68.
Saturday Night
 
A slight chance of rain. Mostly cloudy, with a low around 53.
Sunday
 
A chance of rain. Partly sunny, with a high near 70.

 

Forecast from NOAA-NWS for Bellingham WA.