• Tonight

    Mar 3

    Lo 43°

    Clear and seasonably cool

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Wed

    Mar 4

    67°Lo 43°

    Mostly sunny

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

    Mar 5

    71°Lo 44°

    Plenty of sun

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

    Mar 6

    71°Lo 45°

    Plenty of sunshine

    Low ragweed pollen levels
    • Precip
      0%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      0%
  • Sat

    Mar 7

    72°Lo 48°

    Mostly sunny and pleasant

    Low ragweed pollen levels
    • Precip
      0%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      25%
    more
Next Previous
Bright sunshine 71° Lo 61° RealFeel® 73° / 60°

N

E

S

W

  • Precipitation: 0%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 37%
  • Cloud Cover: 0%
  • Dew Point: 40° F
  • Visibility: 10 mi
7 mph

Temperature History - Mar 6

more Historical Weather Data >
  Today Normal Record 3/6/2014
High 71° 64° N/A 66°
Low 45° 43° N/A 53°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:33 AM with 11:34 of sunlight, then sets at 6:07 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 7:18 PM with 12:06 of moolight, then sets at 7:24 AM

Los Altos Weather Report

San Francisco: Dry Pattern to Return Bringing Sunny, Warm Days

March 3, 2015; 12:44 PM ET

San Francisco will get progressively warmer everyday this week, reaching 70 degrees F by the weekend. more >

Making a Forecast: The Sixth Sense

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

Fri. Dust & Dander

Fri. Wind Maps