• Today

    Sep 23

    69°Lo 51°

    Cool in the a.m.; sunny, nice

    Excellent for biking
    • Precip
      1%
    • Hours of Precip
      0
    • Wind
      Gust
      6 mph
  • Wed

    Sep 24

    72°Lo 59°

    Rather cloudy and comfortable

    Excellent for biking
    • Precip
      25%
    • Hours of Precip
      0
    • Wind
      Gust
      12 mph
    more
  • Thu

    Sep 25

    65°Lo 55°

    Cooler with periods of rain

    Fair for biking
    • Precip
      64%
    • Hours of Precip
      3
    • Wind
      Gust
      10 mph
    more
  • Fri

    Sep 26

    76°Lo 55°

    Mostly sunny and warmer

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

    Sep 27

    80°Lo 55°

    Nice with plenty of sunshine

    Excellent for biking
    • Precip
      3%
    • Hours of Precip
      0
    • Wind
      Gust
      7 mph
    more
Next Previous
Hi 69° RealFeel® 73° Precipitation 1%

Day

N

E

S

W

  • NNE 3 mph
  • Gusts: 6 mph

Cool this morning; otherwise, sunny and pleasant

  • Max UV Index: 5 (Moderate)
  • Thunderstorms: 5%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 51° RealFeel® 50° Precipitation 17%

Night

N

E

S

W

  • N 2 mph
  • Gusts: 6 mph

Increasing amounts of clouds

  • 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 23

more Historical Weather Data >
  Today Normal Record 9/23/2013
High 69° 75° N/A 66°
Low 51° 56° N/A 47°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:56 AM with 12:07 of sunlight, then sets at 7:03 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:19 AM with 12:21 of moolight, then sets at 6:40 PM

Top Story

Greenbelt Weather Report

DC: September Temperature Roller Coaster to Continue

September 23, 2014; 3:29 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.