Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Multiple snowstorms to bear down on Northeast in early December. See the forecast. Chevron right
Weekend winter storm to set off post-Thanksgiving travel delays. Get the details. Chevron right

Mercer Island, WA

51°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Mercer Island

Washington

51°
No results found.
Try searching for a city, zip code or point of interest.
settings
Mercer Island, WA Weather
Today WinterCast Local {stormName} Tracker Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel

For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center

Today Hourly

Daily

Radar MinuteCast® Monthly Air Quality Health & Activities

November 28 - January 11

Fri 11/28

52° /37°
11%
Times of clouds and sun

RealFeel®54°

RealFeel Shade™51°

Max UV Index2.0 (Low)

WindN 6 mph

Sat 11/29

50° /30°
25%
Cloudy

RealFeel®49°

RealFeel Shade™49°

Max UV Index1.0 (Low)

WindE 6 mph

Sun 11/30

48° /33°
9%
Partly sunny

RealFeel®49°

RealFeel Shade™46°

Max UV Index2.0 (Low)

WindNNE 5 mph

Mon 12/1

46° /41°
55%
Cloudy with a passing shower

RealFeel®51°

RealFeel Shade™51°

Max UV Index0.0 (Low)

WindNNE 1 mph

Tue 12/2

52° /38°
60%
A couple of showers in the morning; otherwise, mostly cloudy

RealFeel®54°

RealFeel Shade™54°

Max UV Index1.0 (Low)

WindN 4 mph

Wed 12/3

45° /39°
25%
Cloudy

RealFeel®48°

RealFeel Shade™48°

Max UV Index1.0 (Low)

WindNNE 1 mph

Thu 12/4

47° /43°
55%
Mostly cloudy with a bit of rain

RealFeel®52°

RealFeel Shade™49°

Max UV Index1.0 (Low)

WindNNW 1 mph

Fri 12/5

53° /46°
11%
More clouds than sun

RealFeel®56°

RealFeel Shade™56°

Max UV Index1.0 (Low)

WindSSE 2 mph

Sat 12/6

48° /41°
56%
Considerable cloudiness with a bit of rain in the afternoon

RealFeel®48°

RealFeel Shade™48°

Max UV Index0.0 (Low)

WindS 7 mph

Sun 12/7

46° /40°
49%
Low clouds with a shower in spots in the afternoon

RealFeel®47°

RealFeel Shade™47°

Max UV Index0.0 (Low)

WindSSW 4 mph

Mon 12/8

46° /38°
76%
Rain

RealFeel®38°

RealFeel Shade™38°

Max UV Index0.0 (Low)

WindS 8 mph

Tue 12/9

45° /37°
60%
Periods of rain

RealFeel®46°

RealFeel Shade™46°

Max UV Index1.0 (Low)

WindS 5 mph

Wed 12/10

47° /35°
55%
Cloudy with a bit of rain

RealFeel®51°

RealFeel Shade™50°

Max UV Index1.0 (Low)

WindS 4 mph

Thu 12/11

46° /34°
76%
Rain

RealFeel®43°

RealFeel Shade™43°

Max UV Index0.0 (Low)

WindSE 7 mph

Fri 12/12

48° /39°
67%
Rain

RealFeel®35°

RealFeel Shade™35°

Max UV Index0.0 (Low)

WindSSW 17 mph

Sat 12/13

50° /41°
25%
Mostly cloudy

RealFeel®48°

RealFeel Shade™48°

Max UV Index1.0 (Low)

WindS 8 mph

Sun 12/14

48° /40°
70%
Rain

RealFeel®38°

RealFeel Shade™38°

Max UV Index0.0 (Low)

WindS 14 mph

Mon 12/15

50° /38°
58%
A thick cloud cover; a little morning rain followed by a shower in spots in the afternoon

RealFeel®51°

RealFeel Shade™51°

Max UV Index0.0 (Low)

WindSE 5 mph

Tue 12/16

49° /34°
70%
Occasional rain in the morning; otherwise, rather cloudy

RealFeel®48°

RealFeel Shade™47°

Max UV Index2.0 (Low)

WindSW 10 mph

Wed 12/17

44° /33°
25%
Mostly cloudy

RealFeel®43°

RealFeel Shade™43°

Max UV Index1.0 (Low)

WindSSE 5 mph

Thu 12/18

42° /32°
60%
Periods of rain

RealFeel®40°

RealFeel Shade™40°

Max UV Index0.0 (Low)

WindSSW 7 mph

Fri 12/19

42° /29°
25%
Times of clouds and sun

RealFeel®47°

RealFeel Shade™45°

Max UV Index1.0 (Low)

WindNE 2 mph

Sat 12/20

39° /29°
25%
Mostly cloudy

RealFeel®41°

RealFeel Shade™41°

Max UV Index1.0 (Low)

WindENE 2 mph

Sun 12/21

40° /35°
59%
Cloudy; a shower in spots after temperatures rise above freezing in the morning, then a little rain in the afternoon

RealFeel®43°

RealFeel Shade™43°

Max UV Index0.0 (Low)

WindSSE 4 mph

Mon 12/22

41° /32°
75%
Cloudy; a mix of snow and rain in the morning followed by areas of drizzle in the afternoon

RealFeel®44°

RealFeel Shade™44°

Max UV Index0.0 (Low)

WindE 1 mph

Tue 12/23

41° /30°
25%
Periods of clouds and sunshine

RealFeel®43°

RealFeel Shade™43°

Max UV Index2.0 (Low)

WindENE 4 mph

Wed 12/24

40° /30°
25%
Cloudy

RealFeel®43°

RealFeel Shade™43°

Max UV Index0.0 (Low)

WindE 2 mph

Thu 12/25

43° /37°
59%
A thick cloud cover; a shower in spots in the morning followed by a little rain in the afternoon

RealFeel®42°

RealFeel Shade™42°

Max UV Index0.0 (Low)

WindE 5 mph

Fri 12/26

45° /37°
25%
Considerable cloudiness

RealFeel®46°

RealFeel Shade™46°

Max UV Index0.0 (Low)

WindE 4 mph

Sat 12/27

46° /40°
55%
Cloudy with a little rain

RealFeel®45°

RealFeel Shade™45°

Max UV Index0.0 (Low)

WindESE 5 mph

Sun 12/28

47° /40°
59%
Periods of rain

RealFeel®46°

RealFeel Shade™46°

Max UV Index0.0 (Low)

WindSE 7 mph

Mon 12/29

47° /39°
60%
Periods of rain

RealFeel®47°

RealFeel Shade™47°

Max UV Index0.0 (Low)

WindS 5 mph

Tue 12/30

45° /35°
56%
Mostly cloudy with a little rain

RealFeel®44°

RealFeel Shade™44°

Max UV Index1.0 (Low)

WindS 6 mph

Wed 12/31

40° /30°
25%
Clouds and sun

RealFeel®45°

RealFeel Shade™45°

Max UV Index1.0 (Low)

WindNNE 1 mph

Thu 1/1

40° /30°
25%
Overcast

RealFeel®42°

RealFeel Shade™42°

Max UV Index0.0 (Low)

WindE 2 mph

Fri 1/2

41° /34°
25%
Cloudy

RealFeel®44°

RealFeel Shade™44°

Max UV Index0.0 (Low)

WindE 2 mph

Sat 1/3

43° /34°
57%
Periods of clouds and sunshine with a passing shower in the afternoon

RealFeel®44°

RealFeel Shade™44°

Max UV Index1.0 (Low)

WindSSW 5 mph

Sun 1/4

41° /31°
25%
Intervals of clouds and sunshine

RealFeel®46°

RealFeel Shade™46°

Max UV Index1.0 (Low)

WindNNE 1 mph

Mon 1/5

40° /30°
25%
A thick cloud cover

RealFeel®41°

RealFeel Shade™41°

Max UV Index0.0 (Low)

WindE 2 mph

Tue 1/6

41° /35°
68%
Rain and snow at times becoming all rain

RealFeel®40°

RealFeel Shade™40°

Max UV Index0.0 (Low)

WindSSE 5 mph

Wed 1/7

43° /40°
55%
Cloudy with a touch of rain

RealFeel®46°

RealFeel Shade™46°

Max UV Index0.0 (Low)

WindSSE 1 mph

Thu 1/8

44° /41°
70%
Cloudy; a little morning rain, then afternoon showers

RealFeel®37°

RealFeel Shade™37°

Max UV Index0.0 (Low)

WindSSW 9 mph

Fri 1/9

48° /40°
60%
Cloudy; a little rain in the morning followed by a shower in spots in the afternoon

RealFeel®46°

RealFeel Shade™46°

Max UV Index1.0 (Low)

WindSE 7 mph

Sat 1/10

51° /40°
68%
Rain

RealFeel®44°

RealFeel Shade™44°

Max UV Index0.0 (Low)

WindSE 12 mph

Sun 1/11

52° /41°
64%
Rain

RealFeel®45°

RealFeel Shade™45°

Max UV Index0.0 (Low)

WindSW 16 mph

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Winter Weather

Multiple snowstorms to bear down on Northeast, Ohio Valley in December

8 minutes ago

Astronomy

Top astronomy events in December: Supermoon, Geminid meteor shower

6 hours ago

Winter Weather

Weekend winter storm to blanket Chicago, St. Louis, Detroit in snow

2 hours ago

Severe Weather

Firefighters responding to lightning strike forced to shelter from tor...

2 days ago

Weather News

Magnitude 6.0 earthquake shakes Alaska on Thanksgiving morning

23 hours ago

More Stories

Featured Stories

Astronomy

NASA Mars spacecraft flip maneuver challenges theory of underground la...

1 day ago

Recreation

National Parks to cost as much as Disney for some guests in 2026

2 days ago

Weather News

President pardons Gobble and Waddle, two lucky Thanksgiving turkeys

2 days ago

Astronomy

NASA reduces Boeing’s Starliner missions after fumbled test flight

3 days ago

Weather News

This volcano erupted for the first time in 10,000 years

3 days ago

World North America United States Washington Mercer Island

Weather Near Mercer Island:

  • Bellevue, WA
  • Seattle, WA
  • Tacoma, WA
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect RealFeel® and RealFeel Shade™ Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect RealFeel® and RealFeel Shade™ Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
© 2025 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.
Terms of Use | Privacy Policy | Cookie Policy | Do Not Sell My Data checkmark Confirmed Not Selling Your Data | Data Sources

...

...

...