• Tonight

    Aug 21

    Lo 60°

    An evening t-storm in spots

    Ragweed Pollen Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
  • Fri

    Aug 22

    78°Lo 55°

    Heavy thunderstorms

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

    Aug 23

    82°Lo 53°

    A stray afternoon t-storm

    Moderate ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      30 - Moderate
    • Tree
      Pollen
      0 - Low
    more
  • Sun

    Aug 24

    83°Lo 54°

    An afternoon thunderstorm

    Moderate ragweed pollen levels
    • Precip
      51%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      48%
    more
  • Mon

    Aug 25

    86°Lo 55°

    Couple of thunderstorms

    Ragweed Pollen Weather
    • Precip
      60%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      33%
    more
Next Previous
Hi 86° RealFeel® 90° Precipitation 57%

Day

N

E

S

W

  • E 4 mph
  • Gusts: 17 mph

Increasing cloudiness with a thunderstorm in spots late this afternoon

  • Max UV Index: 8 (Very High)
  • Thunderstorms: 60%
  • Precipitation: 0.02 in
  • Rain: 0.02 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1.5 hrs
  • Hours of Rain: 1.5 hrs
Lo 60° RealFeel® 59° Precipitation 70%

Night

N

E

S

W

  • WNW 1 mph
  • Gusts: 4 mph

An evening shower or thunderstorm in spots; otherwise, partly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 40%
  • Precipitation: 0.12 in
  • Rain: 0.12 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 2.5 hrs
  • Hours of Rain: 2.5 hrs

Boulder Pollen Levels - August 21

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

    Pollen

    Low

  • Weed

    Pollen

    Moderate

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Aug 21

more Historical Weather Data >
  Today Normal Record 8/21/2013
High 86° 85° 97° (1960) 92°
Low 60° 56° 48° (2004) 64°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:18 AM with 13:32 of sunlight, then sets at 7:50 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:51 AM with 14:29 of moolight, then sets at 5:20 PM

Thu. Pollen

Thu. Dust & Dander

Thu. Wind Maps