• Tonight

    Mar 29

    Lo 35°

    Becoming cloudy

    Lawn Mowing Weather
    • Hours of Precip
      0.5
    • Precip
      1%
    • Hi
      RealFeel
      50°
  • Mon

    Mar 30

    59°Lo 35°

    Clouds breaking and warmer

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      25%
    • Hi
      RealFeel
      58°
    more
  • Tue

    Mar 31

    58°Lo 34°

    A couple of afternoon showers

    Very Good for lawn mowing
    • Hours of Precip
      2.5
    • Precip
      70%
    • Hi
      RealFeel
      60°
    more
  • Wed

    Apr 1

    58°Lo 36°

    Abundant sunshine

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      3%
    • Hi
      RealFeel
      65°
    more
  • Thu

    Apr 2

    71°Lo 56°

    Partly sunny; breezy, warmer

    Excellent for lawn mowing
    • Hours of Precip
      3
    • Precip
      19%
    • Hi
      RealFeel
      72°
    more
Next Previous
Hi 47° RealFeel® 50° Precipitation 1%

Day

N

E

S

W

  • NW 7 mph
  • Gusts: 16 mph

Sunny and chilly

  • Max UV Index: 6 (High)
  • 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 35° RealFeel® 23° Precipitation 52%

Night

N

E

S

W

  • SSW 10 mph
  • Gusts: 17 mph

Increasing clouds with a shower in places late

  • Max UV Index: N/A
  • Thunderstorms: 20%
  • Precipitation: 0.04 in
  • Rain: 0.04 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0.5 hrs
  • Hours of Rain: 0.5 hrs

Temperature History - Mar 29

more Historical Weather Data >
  Today Normal Record 3/29/2014
High 47° 60° 86° (1998) 57°
Low 35° 37° 20° (1982) 47°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:59 AM with 12:31 of sunlight, then sets at 7:30 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:26 PM with 13:52 of moolight, then sets at 4:18 AM

Herndon Weather Report

DC, Baltimore: New Week to Feature More Milder Days

March 29, 2015; 6:12 PM ET

The new week will feature what those in the Washington, D.C., and Baltimore areas sick of winter making a comeback have been waiting to hear--more mild than chilly days. more >

Why Do Leaves Change Color?

Sep 20, 2011; 5:00 AM ET Why do leaves change from green to beautiful shades of red, orange and yellow in the fall?

Current Drought Status

Current Soil Conditions

Sun. Overnight Freeze

Sun. Degree Days

Sun. Evapotranspiration