National Weather Service Forecast for: Downtown Seattle WA
Issued by: National Weather Service Seattle, WA
Updated: 11:26 pm PDT Aug 19, 2026
 
Overnight

Overnight: Mostly clear, with a low around 58. Light north wind.
Mostly Clear
 Thursday

Thursday: Sunny, with a high near 80. Calm wind becoming northwest around 6 mph in the afternoon.
Sunny
 Thursday
Night
Thursday Night: Mostly clear, with a low around 60. North northwest wind around 5 mph becoming calm in the evening.
Mostly Clear
 Friday

Friday: Increasing clouds, with a high near 80. Calm wind becoming north northwest around 5 mph in the afternoon.
Increasing
Clouds
 Friday
Night
Friday Night: A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 61. Calm wind becoming south southwest 5 to 7 mph after midnight.
Slight Chance
Rain
 Saturday

Saturday: A 50 percent chance of rain. Mostly cloudy, with a high near 71.
Chance Rain
 Saturday
Night
Saturday Night: Mostly cloudy, with a low around 59.
Mostly Cloudy
 Sunday

Sunday: Mostly cloudy, with a high near 72.
Mostly Cloudy
 Sunday
Night
Sunday Night: Partly cloudy, with a low around 57.
Partly Cloudy
Lo 58 °F Hi 80 °F Lo 60 °F Hi 80 °F Lo 61 °F Hi 71 °F Lo 59 °F Hi 72 °F Lo 57 °F

 

Overnight
 
 Mostly clear, with a low around 58. Light north wind.
Thursday
 
 Sunny, with a high near 80. Calm wind becoming northwest around 6 mph in the afternoon.
Thursday Night
 
 Mostly clear, with a low around 60. North northwest wind around 5 mph becoming calm in the evening.
Friday
 
 Increasing clouds, with a high near 80. Calm wind becoming north northwest around 5 mph in the afternoon.
Friday Night
 
 A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 61. Calm wind becoming south southwest 5 to 7 mph after midnight.
Saturday
 
 A 50 percent chance of rain. Mostly cloudy, with a high near 71.
Saturday Night
 
 Mostly cloudy, with a low around 59.
Sunday
 
 Mostly cloudy, with a high near 72.
Sunday Night
 
 Partly cloudy, with a low around 57.
Monday
 
 Mostly sunny, with a high near 73.
Monday Night
 
 Mostly clear, with a low around 57.
Tuesday
 
 Mostly sunny, with a high near 75.
Tuesday Night
 
 Partly cloudy, with a low around 57.
Wednesday
 
 Partly sunny, with a high near 72.

 

Forecast from NOAA-NWS for Downtown Seattle WA.