• Today

    May 4

    72°Lo 48°

    Low clouds, then sun

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

    May 5

    72°Lo 47°

    Low clouds, then some sun

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

    May 6

    72°Lo 46°

    Mostly sunny and nice

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

    May 7

    69°Lo 46°

    Sunshine; breezy in the p.m.

    Low ragweed pollen levels
    • Precip
      6%
    • Wind
      Speed
      12 mph
    • Cloud
      Cover
      23%
    more
  • Fri

    May 8

    72°Lo 47°

    Mainly cloudy and cool

    Ragweed Pollen Weather
    • Precip
      2%
    • Wind
      Speed
      9 mph
    • Cloud
      Cover
      76%
Next Previous

Want more Hourly forecasting?

Subscribe to our Premium Membership

Hourly

Get 15 days of hourly forecasts and daily details, plus the interactive Planner and more all ad-free when you subscribe to our Premium service.

Temperature History - May 8

more Historical Weather Data >
  Today Normal Record 5/8/2014
High 72° 73° N/A 71°
Low 47° 48° N/A 53°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:06 AM with 13:58 of sunlight, then sets at 8:04 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:18 PM with 18:41 of moolight, then sets at 10:00 AM

Los Altos Weather Report

San Francisco: Seasonable Temperatures to Continue Through Week

May 4, 2015; 7:42 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 >

Fri. Dust & Dander

Fri. Wind Maps