• Early AM

    May 27

    Lo 65°

    Partly cloudy

    Outdoor Barbecue Weather
    • Precip
      10%
    • Hi
      RealFeel
      94°
    • Wind
      Speed
      5 mph
    more
  • Today

    May 27

    88°Lo 67°

    Partly sunny, warm and muggy

    Excellent for an outdoor bbq
    • Precip
      25%
    • Hi
      RealFeel
      97°
    • Wind
      Speed
      5 mph
  • Sat

    May 28

    87°Lo 62°

    Partly sunny, warm and muggy

    Excellent for an outdoor bbq
    • Precip
      14%
    • Hi
      RealFeel
      91°
    • Wind
      Speed
      5 mph
    more
  • Sun

    May 29

    82°Lo 67°

    A thunderstorm in spots

    Excellent for an outdoor bbq
    • Precip
      55%
    • Hi
      RealFeel
      88°
    • Wind
      Speed
      4 mph
    more
  • Mon

    May 30

    75°Lo 63°

    A couple of thunderstorms

    Very Good for an outdoor bbq
    • Precip
      25%
    • Hi
      RealFeel
      83°
    • Wind
      Speed
      4 mph
    more
Next Previous
Hi 88° RealFeel® 97° Precipitation 25%

Day

N

E

S

W

  • SSW 5 mph
  • Gusts: 9 mph

Very warm and muggy with periods of sun and clouds

  • Max UV Index: 7 (High)
  • Thunderstorms: 24%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 67° RealFeel® 66° Precipitation 25%

Night

N

E

S

W

  • SSE 5 mph
  • Gusts: 8 mph

Partly cloudy and mild

  • Max UV Index: N/A
  • Thunderstorms: 24%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - May 27

more Historical Weather Data >
  Today Normal Record 5/27/2015
High 88° 78° 92° (2010) 86°
Low 67° 55° 37° (1972) 67°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:48 AM with 14:38 of sunlight, then sets at 8:26 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:16 AM with 10:43 of moolight, then sets at 10:59 AM

Herndon Weather Report

Eastern US weather to feel like summertime into Memorial Day

May 27, 2016; 2:34 AM ET

Summerlike warmth will make it feel like the 90s F at times in the eastern United States through Memorial Day weekend, despite localized rainfall. 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.

Fri. Outdoor Entertaining

Fri. Wind Maps

Fri. UV Index