• Friday

    Feb 12

    65°Lo 48°

    Intervals of clouds and sun

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Saturday

    Feb 13

    65°Lo 45°

    Partial sunshine

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Sunday

    Feb 14

    69°Lo 48°

    Mostly sunny

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
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Castro Valley Weather Report

San Francisco: Dry and mild into the weekend

February 10, 2016; 5:15 AM ET

The summerlike warmth that set records during the first part of the week will fade by the weekend, but temperatures will remain above normal. more >

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