• Tonight

    Sep 20

    Lo 50°

    Clear

    Bicycling Weather
    • Precip
      3%
    • Hours of Precip
      0
    • Wind
      Gust
      17 mph
  • Sun

    Sep 21

    71°Lo 51°

    Mostly sunny and pleasant

    Excellent for biking
    • Precip
      6%
    • Hours of Precip
      0
    • Wind
      Gust
      5 mph
    more
  • Mon

    Sep 22

    66°Lo 48°

    Periods of sun; not as warm

    Excellent for biking
    • Precip
      25%
    • Hours of Precip
      0
    • Wind
      Gust
      6 mph
    more
  • Tue

    Sep 23

    68°Lo 53°

    Spotty afternoon showers

    Excellent for biking
    • Precip
      65%
    • Hours of Precip
      1
    • Wind
      Gust
      6 mph
    more
  • Wed

    Sep 24

    68°Lo 51°

    Periods of rain

    Poor for biking
    • Precip
      64%
    • Hours of Precip
      3
    • Wind
      Gust
      10 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sat
8am
9am 10am 11am 12pm 1pm 2pm 3pm
  8am 9am 10am 11am 12pm 1pm 2pm 3pm
Forecast
Mostly Cloudy
Cloudy
Mostly Cloudy
Partly Sunny
Sunny
Sunny
Sunny
Sunny
Temp (°F) 59° 60° 64° 64° 65° 66° 67° 67°
RealFeel® 55° 56° 62° 64° 65° 67° 67° 67°
Humidity 96% 93% 81% 78% 72% 70% 68% 68%
   
  8am 9am 10am 11am 12pm 1pm 2pm 3pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
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) 7 N 8 N 7 N 8 N 10 NNW 8 N 9 N 7 NNW
UV Index 0 0 1 3 4 4 4 3
Cloud Cover 85% 100% 75% 35% 0% 0% 0% 0%
Dew Point 58° 58° 58° 57° 56° 56° 56° 56°
Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F

Temperature History - Sep 20

more Historical Weather Data >
  Today Normal Record 9/20/2013
High 69° N/A 85° (1976) 69°
Low 50° N/A 35° (1983) 47°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:56 AM with 12:18 of sunlight, then sets at 7:14 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:28 AM with 14:03 of moolight, then sets at 5:31 PM

Top Story

Friday Harbor Weather Report

Warmer Weekend Ahead for Seattle

September 20, 2014; 8:58 PM ET

Well-above normal temperatures will highlight the weekend in Seattle, but a shift in temperature will occur at the start of the week. 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.