• Today

    Jul 28

    81°Lo 55°

    Sunshine

    Excellent for biking
    • Precip
      15%
    • Hours of Precip
      0
    • Wind
      Gust
      15 mph
    more
  • Fri

    Jul 29

    81°Lo 54°

    Sunny much of the time

    Excellent for biking
    • Precip
      19%
    • Hours of Precip
      0
    • Wind
      Gust
      8 mph
    more
  • Sat

    Jul 30

    75°Lo 51°

    Partly sunny

    Excellent for biking
    • Precip
      25%
    • Hours of Precip
      0
    • Wind
      Gust
      7 mph
    more
  • Sun

    Jul 31

    74°Lo 52°

    Clouds giving way to some sun

    Excellent for biking
    • Precip
      13%
    • Hours of Precip
      0
    • Wind
      Gust
      7 mph
  • Mon

    Aug 1

    71°Lo 53°

    An afternoon shower in spots

    Excellent for biking
    • Precip
      40%
    • Hours of Precip
      1.5
    • Wind
      Gust
      9 mph
    more
Next Previous
Hi 74° RealFeel® 79° Precipitation 13%

Day

N

E

S

W

  • W 5 mph
  • Gusts: 7 mph

Clouds giving way to some sun

  • Max UV Index: 6 (High)
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 52° RealFeel® 53° Precipitation 19%

Night

N

E

S

W

  • SW 2 mph
  • Gusts: 6 mph

Mainly clear

  • Max UV Index: N/A
  • Thunderstorms: 1%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Jul 31

more Historical Weather Data >
  Today Normal Record 7/31/2015
High 74° 75° N/A 86°
Low 52° 54° N/A 55°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:44 AM with 15:03 of sunlight, then sets at 8:47 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:37 AM with 15:28 of moolight, then sets at 7:05 PM

Mount Vernon Weather Report

Oppressive heat to envelop western US as late-week highs soar 10 to 15 degrees Fahrenheit above average

July 28, 2016; 2:20 PM ET

Highs will run between 10 and 15 degrees Fahrenheit above average across much of the interior western United States into the upcoming weekend. 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.