• Wed

    May 20

    76°Lo 51°

    Sunny

    Ragweed Pollen Weather
    • Precip
      5%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      1%
    more
  • Thu

    May 21

    75°Lo 50°

    Partly sunny

    Ragweed Pollen Weather
    • Precip
      25%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      77%
    more
  • Fri

    May 22

    70°Lo 49°

    Mostly cloudy

    Ragweed Pollen Weather
    • Precip
      25%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      70%
    more
  • Sat

    May 23

    74°Lo 52°

    Cloudy

    Ragweed Pollen Weather
    • Precip
      25%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      99%
  • Sun

    May 24

    77°Lo 55°

    Sunshine

    Ragweed Pollen Weather
    • Precip
      10%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      8%
    more
Next Previous
Hi 74° RealFeel® 74° Precipitation 25%

Day

N

E

S

W

  • W 8 mph
  • Gusts: 20 mph

Cloudy

  • Max UV Index: 4 (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 52° RealFeel® 52° Precipitation 20%

Night

N

E

S

W

  • WNW 7 mph
  • Gusts: 20 mph

Clearing

  • 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 - May 23

more Historical Weather Data >
  Today Normal Record 5/23/2014
High 74° 75° N/A 72°
Low 52° 50° N/A 57°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:54 AM with 14:23 of sunlight, then sets at 8:17 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:10 AM with 13:43 of moolight, then sets at 12:53 AM

Los Altos Weather Report

San Francisco: Seasonable Temperatures to Continue Through Week

May 5, 2015; 6:42 AM ET

A pattern of seasonable temperatures will continue through the first part of the new week, with low clouds in the morning and sunny conditions through the afternoon. more >