• Early AM

    May 20

    Lo 58°

    Occasional rain and drizzle

    Dust & Dander Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more

  • Today

    May 20

    74°Lo 62°

    A t-storm around in the p.m.

    Extreme indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High

  • Tue

    May 21

    77°Lo 63°

    Variably cloudy, a t-storm

    Extreme indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more

  • Wed

    May 22

    76°Lo 61°

    Clouds and sun with a t-storm

    Extreme indoor dust & dander levels
    • Precip
      57%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      70%
    more

  • Thu

    May 23

    75°Lo 62°

    A couple of thunderstorms

    Extreme indoor dust & dander levels
    • Precip
      60%
    • Wind
      Speed
      11 mph
    • Cloud
      Cover
      76%
    more
Next Previous
Hi 74° RealFeel® 74° Precipitation 40%

Day

N

E

S

W

  • SSW 8 mph
  • Gusts: 14 mph

Warmer; a shower in spots this morning followed by a thunderstorm in spots this afternoon

  • Max UV Index: 4 (Moderate)
  • Thunderstorms: 60%
  • Precipitation: 0.06 in
  • Rain: 0.06 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs
Lo 62° RealFeel® 60° Precipitation 40%

Night

N

E

S

W

  • SW 6 mph
  • Gusts: 14 mph

A shower or thunderstorm in spots this evening; otherwise, mostly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 40%
  • 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

Rockville Centre Pollen Levels - May 20

  • Extreme
  • Very High
  • High
  • Moderate
  • Low

  • Grass

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    High

  • Mold

    Pollen

    Low

Temperature History - May 20

more Historical Weather Data >
  Today Normal Record 5/20/2012
High 74° 70° 95° (1996) 78°
Low 62° 54° 42° (2002) 55°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:33 AM with 14:36 of sunlight, then sets at 8:09 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:13 PM with 11:47 of moolight, then sets at 3:00 AM

How Weather Impacts Seasonal Allergy Symptoms

May 18, 2013; 5:00 AM ET If you suffer with seasonal allergies, the weather can relieve or worsen your symptoms. Marja Martinez has the details.

Mon. Pollen

Mon. Dust & Dander

Mon. Wind Maps