• Today

    Feb 27

    34°Lo 21°

    Very cold with a little snow

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

    Feb 28

    42°Lo 33°

    Showers around; not as cold

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

    Mar 1

    53°Lo 32°

    Showers in the afternoon

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

    Mar 2

    53°Lo 32°

    Rain; breezy in the afternoon

    Low ragweed pollen levels
    • Precip
      65%
    • Wind
      Speed
      13 mph
    • Cloud
      Cover
      94%
    more
  • Tue

    Mar 3

    45°Lo 24°

    Colder with spotty showers

    Ragweed Pollen Weather
    • Precip
      61%
    • Wind
      Speed
      14 mph
    • Cloud
      Cover
      85%
    more
Next Previous
Hi 34° RealFeel® 29° Precipitation 75%

Day

N

E

S

W

  • SE 8 mph
  • Gusts: 16 mph

Very cold with a little snow at times, accumulating up to an additional inch

  • Max UV Index: 0 (Low)
  • Thunderstorms: 2%
  • Precipitation: 0.15 in
  • Rain: 0 in
  • Snow: 0.7 in
  • Ice: 0 in
  • Hours of Precipitation: 5 hrs
  • Hours of Rain: 0 hrs
Lo 21° RealFeel® 13° Precipitation 75%

Night

N

E

S

W

  • SSE 7 mph
  • Gusts: 9 mph

Cold with a little snow at times, accumulating a coating to an inch; storm total snowfall 1-3"

  • Max UV Index: N/A
  • Thunderstorms: 2%
  • Precipitation: 0.14 in
  • Rain: 0 in
  • Snow: 0.9 in
  • Ice: 0 in
  • Hours of Precipitation: 4.5 hrs
  • Hours of Rain: 0 hrs

San Ysidro Pollen Levels - February 27

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

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Feb 27

more Historical Weather Data >
  Today Normal Record 2/27/2014
High 34° 56° 71° (1980) 68°
Low 21° 33° 15° (1939) 39°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:40 AM with 11:20 of sunlight, then sets at 6:00 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:00 PM with 14:14 of moolight, then sets at 3:14 AM

Making a Forecast: The Sixth Sense

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

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps