National Weather Service Forecast for: Maple Valley, WA
Issued by: National Weather Service Seattle/Tacoma, WA
Updated: Wed, 18-Mar-2026 8:16pm PDT

Maple Valley
 
  Thursday

Thursday: Light Rain
Light Rain
Friday

Friday: Rain
Rain
Saturday

Saturday: Chance Light Rain
Chance Light Rain
Sunday

Sunday: Slight Chance Light Rain
Slight Chance Light Rain
Monday

Monday: Chance Light Rain
Chance Light Rain
Tuesday

Tuesday: Rain
Rain
Wednesday

Wednesday: Light Rain
Light Rain
  Hi 56 °F Hi 55 °F Hi 49 °F Hi 51 °F Hi 54 °F Hi 52 °F Hi 50 °F
 
Tonight

Tonight: Light Rain
Light Rain
Thursday
Night
Thursday Night: Rain
Rain
Friday
Night
Friday Night: Light Rain Likely
Light Rain Likely
Saturday
Night
Saturday Night: Partly Cloudy
Partly Cloudy
Sunday
Night
Sunday Night: Mostly Cloudy
Mostly Cloudy
Monday
Night
Monday Night: Rain
Rain
Tuesday
Night
Tuesday Night: Rain
Rain
 
Lo 50 °F Lo 51 °F Lo 36 °F Lo 33 °F Lo 35 °F Lo 41 °F Lo 39 °F  

Flood Watch issued March 18 at 3:54PM PDT until March 20 at 5:00PM PDT
 

Tonight
 
Rain. Cloudy, with a low around 50. South southeast wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
Thursday
 
Rain. Cloudy, with a high near 56. South wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
 
Rain. Cloudy, with a low around 51. South wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
 
Rain. Cloudy, with a high near 55. South southwest wind around 7 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Friday Night
 
Rain likely. Mostly cloudy, with a low around 36. Southwest wind 2 to 7 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
Saturday
 
A chance of rain before 5pm. Partly sunny, with a high near 49. Chance of precipitation is 40%.
Saturday Night
 
Partly cloudy, with a low around 33.
Sunday
 
A slight chance of rain between 11am and 5pm. Partly sunny, with a high near 51.
Sunday Night
 
Mostly cloudy, with a low around 35.
Monday
 
A chance of rain after 11am. Mostly cloudy, with a high near 54.
Monday Night
 
Rain. Mostly cloudy, with a low around 41.
Tuesday
 
Rain. Cloudy, with a high near 52.
Tuesday Night
 
Rain. Mostly cloudy, with a low around 39.
Wednesday
 
Rain. Mostly cloudy, with a high near 50.

 

Forecast from NOAA-NWS for Maple Valley, WA.