• Early AM

    Jun 30

    Lo 60°

    Mainly clear

    Ragweed Pollen Weather
    • Grass
      Pollen
      3 - Moderate
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Today

    Jun 30

    84°Lo 66°

    Mostly sunny

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
  • Fri

    Jul 1

    88°Lo 65°

    A t-storm in the afternoon

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Sat

    Jul 2

    83°Lo 63°

    Partly sunny

    Low ragweed pollen levels
    • Grass
      Pollen
      3 - Moderate
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Sun

    Jul 3

    80°Lo 63°

    More sun than clouds

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Hi 84° RealFeel® 92° Precipitation 25%

Day

N

E

S

W

  • ESE 5 mph
  • Gusts: 7 mph

Mostly sunny

  • Max UV Index: 8 (Very High)
  • Thunderstorms: 24%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 66° RealFeel® 67° Precipitation 25%

Night

N

E

S

W

  • SSE 4 mph
  • Gusts: 7 mph

Patchy clouds

  • Max UV Index: N/A
  • Thunderstorms: 24%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Herndon Pollen Levels - June 30

  • Extreme
  • Very High
  • High
  • Moderate
  • Low
  • Tree Pollen

    Low

  • Ragweed Pollen

    Low

  • Mold

    High

  • Grass Pollen

    Low

Temperature History - Jun 30

more Historical Weather Data >
  Today Normal Record 6/30/2015
High 84° 87° 98° (1964) 85°
Low 66° 64° 51° (1989) 62°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:48 AM with 14:51 of sunlight, then sets at 8:39 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:42 AM with 13:52 of moolight, then sets at 4:34 PM

Herndon Weather Report

Dry weather to dominate July Fourth weekend from Chicago to NYC, Boston

June 30, 2016; 12:43 AM ET

While downpours could come calling at the start and finish of the July Fourth weekend in the northeastern United States, the vast majority of the time will be dry. more >

Thu. Pollen

Thu. Dust & Dander

Thu. Wind Maps