• Today

    Apr 18

    58°Lo 41°

    Cool with variable clouds

    Excellent for travel
    • Rain
      0 in
    • Wind
      Speed
      4 mph
    • T-storms
      3%
  • Sat

    Apr 19

    65°Lo 39°

    Partly sunny

    Excellent for travel
    • Rain
      0 in
    • Wind
      Speed
      9 mph
    • T-storms
      0%
    more
  • Sun

    Apr 20

    65°Lo 38°

    Mostly sunny

    Excellent for travel
    • Rain
      0 in
    • Wind
      Speed
      7 mph
    • T-storms
      0%
    more
  • Mon

    Apr 21

    71°Lo 48°

    Partly sunny and comfortable

    Excellent for travel
    • Rain
      0 in
    • Wind
      Speed
      5 mph
    • T-storms
      1%
    more
  • Tue

    Apr 22

    71°Lo 47°

    Mostly cloudy, brief showers

    Very Good for travel
    • Rain
      0.17 in
    • Wind
      Speed
      7 mph
    • T-storms
      22%
    more
Next Previous
Hi 58° RealFeel® 60° Precipitation 3%

Day

N

E

S

W

  • SSE 4 mph
  • Gusts: 8 mph

Cool with clouds and breaks of sun

  • Max UV Index: 5 (Moderate)
  • Thunderstorms: 3%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 41° RealFeel® 42° Precipitation 21%

Night

N

E

S

W

  • N 2 mph
  • Gusts: 6 mph

Clouds breaking

  • 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 - Apr 18

more Historical Weather Data >
  Today Normal Record 4/18/2013
High 58° 68° 90° (1976) 78°
Low 41° 43° 31° (1990) 59°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:29 AM with 13:20 of sunlight, then sets at 7:49 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:32 PM with 10:13 of moolight, then sets at 9:45 AM

Top Story

Herndon Weather Report

DC: Turn to Milder Weather Into Easter Weekend

April 18, 2014; 4:10 AM ET

The return of noticeably milder air to Washington, D.C., will coincide with this Easter weekend. more >

Friday Florida Washout

Apr 18, 2014; 8:02 AM ET Heavy rain and strong storms will soak the Southeast as a system moves slowly though the area.

Weather Related Flight Delays

Fri. Travel Weather

Flight Tracker