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

Overnight: Mostly clear, with a low around 54. Calm wind.
Mostly Clear
Monday

Monday: Sunny, with a high near 87. Calm wind becoming northwest 5 to 9 mph in the afternoon.
Sunny
Monday
Night
Monday Night: Partly cloudy, with a low around 59. North northwest wind around 6 mph becoming calm  in the evening.
Partly Cloudy
Tuesday

Tuesday: Mostly sunny, with a high near 90. Calm wind becoming west northwest around 6 mph in the afternoon.
Mostly Sunny
Tuesday
Night
Tuesday Night: Mostly clear, with a low around 60. West northwest wind 5 to 7 mph becoming calm  in the evening.
Mostly Clear
Wednesday

Wednesday: Mostly sunny, with a high near 90.
Mostly Sunny
Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 57.
Partly Cloudy
Thursday

Thursday: Partly sunny, with a high near 76.
Partly Sunny
Thursday
Night
Thursday Night: Rain likely, mainly after 11pm.  Mostly cloudy, with a low around 55.
Rain Likely
Lo 54 °F Hi 87 °F Lo 59 °F Hi 90 °F Lo 60 °F Hi 90 °F Lo 57 °F Hi 76 °F Lo 55 °F

Heat Advisory
 

Overnight
 
Mostly clear, with a low around 54. Calm wind.
Monday
 
Sunny, with a high near 87. Calm wind becoming northwest 5 to 9 mph in the afternoon.
Monday Night
 
Partly cloudy, with a low around 59. North northwest wind around 6 mph becoming calm in the evening.
Tuesday
 
Mostly sunny, with a high near 90. Calm wind becoming west northwest around 6 mph in the afternoon.
Tuesday Night
 
Mostly clear, with a low around 60. West northwest wind 5 to 7 mph becoming calm in the evening.
Wednesday
 
Mostly sunny, with a high near 90.
Wednesday Night
 
Partly cloudy, with a low around 57.
Thursday
 
Partly sunny, with a high near 76.
Thursday Night
 
Rain likely, mainly after 11pm. Mostly cloudy, with a low around 55.
Friday
 
Rain. Cloudy, with a high near 66.
Friday Night
 
Rain. Cloudy, with a low around 52.
Saturday
 
Rain. Mostly cloudy, with a high near 66.
Saturday Night
 
A chance of rain. Mostly cloudy, with a low around 52.
Sunday
 
A chance of rain. Mostly cloudy, with a high near 70.

 

Forecast from NOAA-NWS for Marysville WA.