• Today

    Apr 18

    65°Lo 50°

    Increasing amounts of sun

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
  • Sun

    Apr 19

    65°Lo 50°

    Low clouds break for some sun

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Mon

    Apr 20

    63°Lo 50°

    Partly sunny

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Tue

    Apr 21

    61°Lo 51°

    Cloudy

    Low ragweed pollen levels
    • Precip
      25%
    • Wind
      Speed
      13 mph
    • Cloud
      Cover
      94%
    more
  • Wed

    Apr 22

    63°Lo 50°

    A couple of showers possible

    Ragweed Pollen Weather
    • Precip
      30%
    • Wind
      Speed
      12 mph
    • Cloud
      Cover
      77%
    more
Next Previous
Hi 65° RealFeel® 73° Precipitation 2%

Day

N

E

S

W

  • NW 7 mph
  • Gusts: 16 mph

Increasing amounts of sun

  • Max UV Index: 8 (Very High)
  • 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 50° RealFeel® 49° Precipitation 3%

Night

N

E

S

W

  • WNW 6 mph
  • Gusts: 12 mph

Partly cloudy

  • 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

San Francisco Pollen Levels - April 18

  • Extreme
  • Very High
  • High
  • Moderate
  • Low
  • Grass

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    High

  • Mold

    Pollen

    Low

Temperature History - Apr 18

more Historical Weather Data >
  Today Normal Record 4/18/2014
High 65° 63° 83° (1914) 60°
Low 50° 49° 42° (1955) 51°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:31 AM with 13:17 of sunlight, then sets at 7:48 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:33 AM with 13:29 of moolight, then sets at 8:02 PM

San Francisco Weather Report

San Francisco: Pleasant Conditions to Hold into New Week

April 18, 2015; 6:31 PM ET

The Bay area will see pleasant conditions hold into the new week with plenty of sunshine and comfortable temperatures. more >

Sat. Pollen

Sat. Dust & Dander

Sat. Wind Maps