• Today

    Jun 30

    86°Lo 68°

    A shower and t-storm around

    Very Good for biking
    • Precip
      60%
    • Hours of Precip
      2
    • Wind
      Gust
      13 mph
  • Wed

    Jul 1

    86°Lo 67°

    Partly sunny with a t-storm

    Good for biking
    • Precip
      55%
    • Hours of Precip
      1
    • Wind
      Gust
      9 mph
    more
  • Thu

    Jul 2

    81°Lo 66°

    An afternoon thunderstorm

    Very Good for biking
    • Precip
      55%
    • Hours of Precip
      0.5
    • Wind
      Gust
      6 mph
    more
  • Fri

    Jul 3

    78°Lo 66°

    A shower and t-storm around

    Very Good for biking
    • Precip
      63%
    • Hours of Precip
      2
    • Wind
      Gust
      12 mph
    more
  • Sat

    Jul 4

    82°Lo 67°

    Mostly cloudy with a t-storm

    Good for biking
    • Precip
      55%
    • Hours of Precip
      1
    • Wind
      Gust
      10 mph
    more
Next Previous
Hi 86° RealFeel® 89° Precipitation 60%

Day

N

E

S

W

  • S 8 mph
  • Gusts: 13 mph

More humid with intervals of clouds and sunshine; a couple of afternoon showers and a thunderstorm

  • Max UV Index: 7 (High)
  • Thunderstorms: 60%
  • Precipitation: 0.11 in
  • Rain: 0.11 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 2 hrs
  • Hours of Rain: 2 hrs
Lo 68° RealFeel® 68° Precipitation 55%

Night

N

E

S

W

  • SSW 5 mph
  • Gusts: 9 mph

An evening shower or thunderstorm around; otherwise, mainly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 60%
  • Precipitation: 0.05 in
  • Rain: 0.05 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0.5 hrs
  • Hours of Rain: 0.5 hrs

Temperature History - Jun 30

more Historical Weather Data >
  Today Normal Record 6/30/2014
High 86° 88° 100° (1959) 89°
Low 68° 70° 50° (1919) 72°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:46 AM with 14:52 of sunlight, then sets at 8:38 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 7:13 PM with 10:17 of moolight, then sets at 5:30 AM

Cabin John Weather Report

DC, Baltimore: Risk of Storms for Activities Through July Fourth

June 30, 2015; 1:32 AM ET

Most days through the July Fourth weekend will bring the potential for showers and thunderstorms to the Washington, D.C. and Baltimore areas, and down to the Chesapeake Bay and shore. 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.