• Today

    Apr 21

    62°Lo 46°

    A couple of afternoon showers

    Very Good for an outdoor bbq
    • Precip
      73%
    • Hi
      RealFeel
      65°
    • Wind
      Gust
      10 mph
  • Tue

    Apr 22

    54°Lo 43°

    Cooler with spotty showers

    Fair for an outdoor bbq
    • Precip
      72%
    • Hi
      RealFeel
      53°
    • Wind
      Gust
      11 mph
    more
  • Wed

    Apr 23

    56°Lo 45°

    A brief shower or two

    Fair for an outdoor bbq
    • Precip
      56%
    • Hi
      RealFeel
      58°
    • Wind
      Gust
      9 mph
    more
  • Thu

    Apr 24

    58°Lo 45°

    Rain

    Poor for an outdoor bbq
    • Precip
      75%
    • Hi
      RealFeel
      55°
    • Wind
      Gust
      12 mph
    more
  • Fri

    Apr 25

    56°Lo 43°

    Mostly cloudy, showers around

    Fair for an outdoor bbq
    • Precip
      60%
    • Hi
      RealFeel
      62°
    • Wind
      Gust
      6 mph
    more
Next Previous
Hi 62° RealFeel® 65° Precipitation 73%

Day

N

E

S

W

  • WSW 5 mph
  • Gusts: 10 mph

Rather cloudy with spotty showers this afternoon

  • Max UV Index: 4 (Moderate)
  • Thunderstorms: 20%
  • Precipitation: 0.14 in
  • Rain: 0.14 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 2 hrs
  • Hours of Rain: 2 hrs
Lo 46° RealFeel® 35° Precipitation 68%

Night

N

E

S

W

  • S 12 mph
  • Gusts: 18 mph

Breezy with occasional rain

  • Max UV Index: N/A
  • Thunderstorms: 2%
  • Precipitation: 0.42 in
  • Rain: 0.42 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 5.5 hrs
  • Hours of Rain: 5.5 hrs

Temperature History - Apr 21

more Historical Weather Data >
  Today Normal Record 4/21/2013
High 62° 59° 76° (1982) 54°
Low 46° 43° 29° (1951) 44°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:09 AM with 13:58 of sunlight, then sets at 8:07 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:48 AM with 9:48 of moolight, then sets at 11:36 AM

Top Story

Mercer Island Weather Report

More Rain Coming Back to Seattle

April 21, 2014; 4:48 AM ET

More showers and rain are expected this week in the Seattle area. more >

Is Your Outdoor Gear Waterproof?

Dec 5, 2012; 5:00 AM ET Now that it's cold enough to hit the slopes, you may want to look more closely at what materials your winter sports gear is made of. As it turns out, not all waterproofing is created equal.

Mon. Outdoor Entertaining

Mon. Wind Maps

Mon. UV Index