• Today

    Mar 27

    50°Lo 27°

    Mostly cloudy and cooler

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Sat

    Mar 28

    40°Lo 19°

    A rain or snow shower; colder

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      7 - Low
  • Sun

    Mar 29

    49°Lo 35°

    Partly sunny and warmer

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      7 - Low
    more
  • Mon

    Mar 30

    57°Lo 31°

    A shower possible

    Low ragweed pollen levels
    • Precip
      30%
    • Wind
      Speed
      15 mph
    • Cloud
      Cover
      28%
    more
  • Tue

    Mar 31

    58°Lo 40°

    Mostly cloudy

    Ragweed Pollen Weather
    • Precip
      2%
    • Wind
      Speed
      9 mph
    • Cloud
      Cover
      76%
    more
Next Previous
Hi 40° RealFeel® 30° Precipitation 45%

Day

N

E

S

W

  • NW 14 mph
  • Gusts: 23 mph

Variable cloudiness, breezy and colder with a rain or snow shower in spots

  • Max UV Index: 5 (Moderate)
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0.0 in
  • Ice: 0 in
  • Hours of Precipitation: 1.5 hrs
  • Hours of Rain: 1 hrs
Lo 19° RealFeel® 12° Precipitation 0%

Night

N

E

S

W

  • NW 8 mph
  • Gusts: 16 mph

Clear and very cold

  • Max UV Index: N/A
  • Thunderstorms: 2%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Rosemont Pollen Levels - March 28

  • Extreme
  • Very High
  • High
  • Moderate
  • Low
  • Grass

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Mar 28

more Historical Weather Data >
  Today Normal Record 3/28/2014
High 40° 60° N/A 64°
Low 19° 38° N/A 41°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:02 AM with 12:28 of sunlight, then sets at 7:30 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:32 PM with 14:12 of moolight, then sets at 3:44 AM

Rosemont Weather Report

DC, Baltimore to Turn Sharply Colder, Little Snowy This Weekend

March 27, 2015; 5:52 AM ET

Wintry conditions and cold will return to the Washington, D.C., and Baltimore areas through Sunday morning. more >

Making a Forecast: The Sixth Sense

Feb 16, 2015; 5:00 AM ET What steps go into making a forecast?

Sat. Pollen

Sat. Dust & Dander

Sat. Wind Maps