• Tonight

    Apr 19

    Lo 48°

    Partly cloudy

    Dust & Dander Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Sun

    Apr 20

    74°Lo 48°

    Low clouds break for some sun

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

    Apr 21

    71°Lo 47°

    Low clouds, then some sun

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

    Apr 22

    67°Lo 44°

    Low clouds breaking

    Low indoor dust & dander levels
    • Precip
      4%
    • Wind
      Speed
      15 mph
    • Cloud
      Cover
      70%
    more
  • Wed

    Apr 23

    67°Lo 46°

    Mostly sunny

    Low indoor dust & dander levels
    • Precip
      1%
    • Wind
      Speed
      12 mph
    • Cloud
      Cover
      11%
    more
Next Previous
Hi 74° RealFeel® 77° Precipitation 1%

Day

N

E

S

W

  • NW 7 mph
  • Gusts: 14 mph

Low clouds followed by some sun

  • Max UV Index: 7 (High)
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 48° RealFeel® 48° Precipitation 1%

Night

N

E

S

W

  • W 3 mph
  • Gusts: 10 mph

Partly cloudy in the evening followed by low clouds late

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

San Luis Obispo Pollen Levels - April 20

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

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Moderate

  • Mold

    Pollen

    Low

Temperature History - Apr 20

more Historical Weather Data >
  Today Normal Record 4/20/2013
High 74° 67° 99° (2009) 87°
Low 48° 47° 31° (1972) 45°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:24 AM with 13:15 of sunlight, then sets at 7:39 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:19 AM with 10:35 of moolight, then sets at 10:54 AM

Is it a Cold or the Flu?

Apr 19, 2014; 5:00 AM ET Symptoms caused by the common cold can often resemble those associated with the influenza virus, so how do you differentiate between the two?

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps