• Today

    May 28

    91°Lo 65°

    Some sun with a thunderstorm

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

    May 29

    85°Lo 64°

    A p.m. t-storm in spots

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Sat

    May 30

    88°Lo 64°

    A t-storm in the afternoon

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Sun

    May 31

    83°Lo 56°

    A shower and t-storm around

    Low ragweed pollen levels
    • Precip
      63%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      78%
    more
  • Mon

    Jun 1

    64°Lo 54°

    Colder with a passing shower

    Ragweed Pollen Weather
    • Precip
      55%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      90%
    more
Next Previous
Hi 91° RealFeel® 99° Precipitation 56%

Day

N

E

S

W

  • WSW 4 mph
  • Gusts: 7 mph

Clouds and sunshine with a shower or thunderstorm around

  • Max UV Index: 7 (High)
  • Thunderstorms: 60%
  • Precipitation: 0.16 in
  • Rain: 0.16 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1.5 hrs
  • Hours of Rain: 1.5 hrs
Lo 65° RealFeel® 68° Precipitation 40%

Night

N

E

S

W

  • ENE 1 mph
  • Gusts: 5 mph

A shower or thunderstorm in spots this evening; otherwise, partly cloudy and humid

  • 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

Frederick Pollen Levels - May 28

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

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Moderate

  • Mold

    Pollen

    Low

Temperature History - May 28

more Historical Weather Data >
  Today Normal Record 5/28/2014
High 91° 80° N/A 82°
Low 65° 58° N/A 59°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:47 AM with 14:41 of sunlight, then sets at 8:28 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:41 PM with 11:46 of moolight, then sets at 3:27 AM

Frederick Weather Report

DC, Baltimore: Major Cooldown to Arrive by Monday

May 28, 2015; 12:25 AM ET

Spotty showers and locally heavy, gusty thunderstorms will join in with the warm, humid weather pattern through Thursday around the Washington, D.C., and Baltimore areas. more >

Thu. Pollen

Thu. Dust & Dander

Thu. Wind Maps