• Tonight

    Dec 18

    Lo 43°

    Rain tapering off

    Snow Days Weather
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
  • Fri

    Dec 19

    50°Lo 42°

    Mostly cloudy, showers around

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Sat

    Dec 20

    52°Lo 48°

    Rain; windy in the afternoon

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Sun

    Dec 21

    55°Lo 46°

    Rain

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Mon

    Dec 22

    52°Lo 43°

    Cloudy with a few showers

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
8am
9am 10am 11am 12pm 1pm 2pm 3pm
  8am 9am 10am 11am 12pm 1pm 2pm 3pm
Forecast
Cloudy
Cloudy
Showers
Showers
Showers
Cloudy
Showers
Showers
Temp (°F) 43° 43° 45° 47° 48° 50° 51° 50°
RealFeel® 41° 42° 44° 46° 47° 49° 48° 47°
Humidity 86% 84% 80% 76% 72% 68% 67% 71%
   
  8am 9am 10am 11am 12pm 1pm 2pm 3pm
Rain
 
17%
 
22%
 
47%
 
47%
 
51%
 
49%
 
69%
 
66%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  8am 9am 10am 11am 12pm 1pm 2pm 3pm
Wind (mph) 5 SE 4 SE 4 SE 5 ESE 5 ESE 5 SE 6 SSE 6 SSE
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 99% 99% 99% 99% 99% 99% 99% 99%
Dew Point 39° 39° 39° 39° 40° 40° 40° 41°
Middle Grid line 55 F Middle Grid line 50 F Middle Grid line 45 F Middle Grid line 40 F

Temperature History - Dec 18

more Historical Weather Data >
  Today Normal Record 12/18/2013
High 51° 45° 54° (2004) 46°
Low 43° 35° 18° (1964) 36°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:52 AM with 8:26 of sunlight, then sets at 4:18 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:59 AM with 10:13 of moolight, then sets at 2:12 PM

Sammamish Weather Report

Seattle: Rain to Continue Into the Weekend

December 18, 2014; 3:39 PM ET

Residents of Seattle and western Washington will want to keep rain gear handy as wet weather continues to move through the region. more >

The 540 Snow Line

Dec 20, 2012; 5:00 AM ET The 540 line is often used by meteorologists to determine the chances of rain vs. snow.

48 Hour Precipitation Forecast

Thu. Snow Day Potential