• Tonight

    Sep 20

    Lo 59°

    Partly cloudy

    Bicycling Weather
    • Precip
      1%
    • Hours of Precip
      0
    • Wind
      Gust
      14 mph
  • Sun

    Sep 21

    85°Lo 60°

    A t-storm in the afternoon

    Excellent for biking
    • Precip
      59%
    • Hours of Precip
      1
    • Wind
      Gust
      11 mph
    more
  • Mon

    Sep 22

    70°Lo 46°

    Mostly sunny; breezy, cooler

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

    Sep 23

    70°Lo 50°

    Mostly sunny

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

    Sep 24

    75°Lo 55°

    Sunny and pleasant

    Excellent for biking
    • Precip
      9%
    • Hours of Precip
      0
    • Wind
      Gust
      8 mph
    more
Next Previous
Hi 79° RealFeel® 79° Precipitation 1%

Day

N

E

S

W

  • S 5 mph
  • Gusts: 14 mph

Times of sun and clouds

  • Max UV Index: 5 (Moderate)
  • 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 59° RealFeel® 58° Precipitation 15%

Night

N

E

S

W

  • N 2 mph
  • Gusts: 8 mph

Partly cloudy

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

Temperature History - Sep 20

more Historical Weather Data >
  Today Normal Record 9/20/2013
High 79° 78° N/A 80°
Low 59° 55° N/A 52°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:55 AM with 12:15 of sunlight, then sets at 7:10 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:35 AM with 13:36 of moolight, then sets at 5:11 PM

Top Story

Poolesville Weather Report

DC: September Temperature Roller Coaster to Continue

September 20, 2014; 2:04 AM ET

In keeping with tradition, temperatures will continue their up-and-down cycle during the second half of September around Washington, D.C. 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.