• Tonight

    Apr 18

    Lo 39°

    Clear to partly cloudy

    Hair Frizz Weather
    • Wind
      Gust
      18 mph
    • Precip
      8%
    • Hours of Precip
      0
    more
  • Sun

    Apr 19

    63°Lo 41°

    Mostly sunny and pleasant

    Watch for hair frizz
    • Wind
      Gust
      9 mph
    • Precip
      11%
    • Hours of Precip
      0
  • Mon

    Apr 20

    64°Lo 43°

    Pleasant with plenty of sun

    Advisory for hair frizz
    • Wind
      Gust
      8 mph
    • Precip
      6%
    • Hours of Precip
      0
    more
  • Tue

    Apr 21

    61°Lo 43°

    Times of clouds and sun

    Advisory for hair frizz
    • Wind
      Gust
      23 mph
    • Precip
      25%
    • Hours of Precip
      0
    more
  • Wed

    Apr 22

    58°Lo 40°

    Partly sunny, showers around

    Watch for hair frizz
    • Wind
      Gust
      16 mph
    • Precip
      60%
    • Hours of Precip
      2
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Sunny
Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 54° 56° 57° 59° 60° 61° 62° 63°
RealFeel® 56° 59° 62° 64° 66° 67° 67° 68°
Humidity 74% 67% 62% 61% 58% 55% 53% 50%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
1%
 
1%
 
1%
 
1%
 
1%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
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0%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 6 NNW 7 N 8 N 7 N 7 N 7 NNW 7 NNW 6 NNW
UV Index 2 3 4 5 6 5 4 3
Cloud Cover 9% 9% 10% 10% 10% 26% 26% 26%
Dew Point 45° 45° 45° 45° 45° 45° 44° 44°
Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F

Temperature History - Apr 19

more Historical Weather Data >
  Today Normal Record 4/19/2014
High 63° N/A 67° (1956) 56°
Low 41° N/A 30° (1966) 43°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:14 AM with 13:55 of sunlight, then sets at 8:09 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 7:00 AM with 14:36 of moolight, then sets at 9:36 PM

Friday Harbor Weather Report

Seattle: Monday's Warmth to Challenge Record

April 18, 2015; 10:18 PM ET

Seattle residents will feel temperatures rising into early next week as skies remain mostly sunny. more >

The History Behind the UV Index

Nov 12, 2012; 5:00 AM ET The UV index has been around since the early 1990s. It was created to help you plan outdoor activities in hopes to limit overexposure to the sun. Jeannette Calle has more.

Sun. Hair Frizz

Sun. Wind Maps

Sun. UV Index