• Tonight

    Mar 3

    Lo 43°

    Mainly clear and cool

    Hair Frizz Weather
    • Wind
      Gust
      16 mph
    • Precip
      35%
    • Hours of Precip
      0
    more
  • Wed

    Mar 4

    67°Lo 43°

    Mostly sunny

    Watch for hair frizz
    • Wind
      Gust
      8 mph
    • Precip
      7%
    • Hours of Precip
      0
  • Thu

    Mar 5

    71°Lo 44°

    Plenty of sun

    Unlikely for hair frizz
    • Wind
      Gust
      8 mph
    • Precip
      3%
    • Hours of Precip
      0
    more
  • Fri

    Mar 6

    71°Lo 45°

    Plenty of sunshine

    Unlikely for hair frizz
    • Wind
      Gust
      10 mph
    • Precip
      0%
    • Hours of Precip
      0
    more
  • Sat

    Mar 7

    72°Lo 48°

    Sunny and pleasant

    Unlikely for hair frizz
    • Wind
      Gust
      9 mph
    • Precip
      0%
    • Hours of Precip
      0
    more
Next Previous
Hi 67° RealFeel® 73° Precipitation 7%

Day

N

E

S

W

  • N 4 mph
  • Gusts: 8 mph

Mostly sunny

  • Max UV Index: 5 (Moderate)
  • 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 43° RealFeel® 46° Precipitation 1%

Night

N

E

S

W

  • N 2 mph
  • Gusts: 6 mph

Clear

  • 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

Temperature History - Mar 4

more Historical Weather Data >
  Today Normal Record 3/4/2014
High 67° 64° N/A 67°
Low 43° 42° N/A 54°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:36 AM with 11:29 of sunlight, then sets at 6:05 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:29 PM with 12:54 of moolight, then sets at 6:23 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 >

The History Behind the UV Index

Nov 12, 2012; 5:00 AM ET The UV index has been around since the early 1990s. It was created to help you plan outdoor activities in hopes to limit overexposure to the sun. Jeannette Calle has more.

Wed. Hair Frizz

Wed. Wind Maps

Wed. UV Index