• Today

    May 18

    71°Lo 40°

    Partly sunny and pleasant

    Very High indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate

  • Sun

    May 19

    72°Lo 50°

    Variably cloudy with a shower

    Very High indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more

  • Mon

    May 20

    77°Lo 60°

    A shower or t-storm in spots

    Very High indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more

  • Tue

    May 21

    72°Lo 50°

    A couple of showers possible

    Very High indoor dust & dander levels
    • Precip
      30%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      93%
    more

  • Wed

    May 22

    67°Lo 54°

    A couple of showers possible

    Extreme indoor dust & dander levels
    • Precip
      30%
    • Wind
      Speed
      3 mph
    • Cloud
      Cover
      90%
    more
Next Previous
Hi 71° RealFeel® 77° Precipitation 15%

Day

N

E

S

W

  • NNW 2 mph
  • Gusts: 5 mph

Partly sunny and pleasant

  • Max UV Index: 7 (High)
  • Thunderstorms: 5%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 40° RealFeel® 41° Precipitation 9%

Night

N

E

S

W

  • N 1 mph
  • Gusts: 3 mph

Some clouds

  • Max UV Index: N/A
  • Thunderstorms: 4%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Morrisville Pollen Levels - May 18

  • Extreme
  • Very High
  • High
  • Moderate
  • Low

  • Grass

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Moderate

  • Mold

    Pollen

    Low

Temperature History - May 18

more Historical Weather Data >
  Today Normal Record 5/18/2012
High 71° 65° N/A 73°
Low 40° 39° N/A 32°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:20 AM with 14:54 of sunlight, then sets at 8:14 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:00 PM with 12:55 of moolight, then sets at 1:55 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.

Sat. Pollen

Sat. Dust & Dander

Sat. Wind Maps