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  • Tonight

    Aug 20

    Clear Lo 56°
    more
  • Thu

    Aug 21

    Low clouds break for some sun 71°Lo 55°
  • Fri

    Aug 22

    Times of clouds and sun 75°Lo 57°
    more
  • Sat

    Aug 23

    Partly sunny and pleasant 79°Lo 59°
    more
  • Sun

    Aug 24

    Mostly sunny 78°Lo 58°
    more
Hi 71° RealFeel® 73° Precipitation 25%

Day

N

E

S

W

  • SW 4 mph
  • Gusts: 6 mph

Low clouds breaking for some sun

  • Max UV Index: 5 (Moderate)
  • Thunderstorms: 1%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 55° RealFeel® 54° Precipitation 40%

Night

N

E

S

W

  • N 2 mph
  • Gusts: 4 mph

Patchy clouds with a shower in spots

  • Max UV Index: N/A
  • Thunderstorms: 20%
  • Precipitation: 0.02 in
  • Rain: 0.02 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs

Temperature History - Aug 21

more Historical Weather Data >
  Today Normal Record 8/21/2013
High 71° 76° 88° (1966) 82°
Low 55° 56° 44° (1947) 59°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:13 AM with 13:58 of sunlight, then sets at 8:11 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:41 AM with 15:07 of moolight, then sets at 5:48 PM

Top Story

Mercer Island Weather Report

Seattle: Sunny as Temperatures Rise

August 20, 2014; 4:10 PM ET

Seattle will begin to see a warming trend over the next several days making for favorable conditions for outdoor summer plans. more >