• Early AM

    Aug 27

    Lo 72°

    Clear

    Bicycling Weather
    • Precip
      4%
    • Hours of Precip
      0
    • Wind
      Gust
      10 mph
    more
  • Today

    Aug 27

    89°Lo 70°

    Mostly sunny and less humid

    Excellent for biking
    • Precip
      12%
    • Hours of Precip
      0
    • Wind
      Gust
      8 mph
    more
  • Sun

    Aug 28

    88°Lo 70°

    Mostly sunny

    Excellent for biking
    • Precip
      16%
    • Hours of Precip
      0
    • Wind
      Gust
      9 mph
  • Mon

    Aug 29

    90°Lo 69°

    Partly sunny

    Very Good for biking
    • Precip
      11%
    • Hours of Precip
      0
    • Wind
      Gust
      8 mph
    more
  • Tue

    Aug 30

    86°Lo 70°

    Partly sunny

    Excellent for biking
    • Precip
      21%
    • Hours of Precip
      0
    • Wind
      Gust
      8 mph
    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
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 77° 79° 82° 84° 85° 86° 86° 88°
RealFeel® 82° 86° 90° 93° 92° 92° 91° 91°
Humidity 70% 61% 55% 52% 47% 45% 45% 46%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
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%
 
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0%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 4 SSE 4 SSE 5 SSE 6 SSE 6 S 7 S 7 S 8 S
UV Index 2 3 5 6 6 6 5 3
Cloud Cover 11% 11% 11% 11% 11% 11% 11% 11%
Dew Point 67° 65° 65° 65° 63° 63° 63° 65°
Middle Grid line 90 F Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F

Temperature History - Aug 28

more Historical Weather Data >
  Today Normal Record 8/28/2015
High 88° 82° 99° (1948) 83°
Low 70° 67° 54° (1986) 66°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:19 AM with 13:14 of sunlight, then sets at 7:33 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:28 AM with 14:40 of moolight, then sets at 5:08 PM

Mount Vernon Weather Report

Is summer heat, humidity over for the northeastern US?

August 27, 2016; 12:24 AM ET

Following a taste of autumn early this past week, is summer heat and humidity over for the northeastern United States? 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.