• Tonight

    Feb 13

    Lo 47°

    Mainly clear

    Ragweed Pollen Weather
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Sun

    Feb 14

    75°Lo 50°

    Mostly sunny and pleasant

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      3 - Moderate
    more
  • Mon

    Feb 15

    76°Lo 50°

    Plenty of sunshine

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

    Feb 16

    76°Lo 53°

    Mostly sunny

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
  • Wed

    Feb 17

    69°Lo 53°

    A little afternoon rain

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Tue
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 58° 63° 68° 71° 73° 74° 76° 75°
RealFeel® 63° 70° 74° 77° 78° 78° 77° 74°
Humidity 60% 52% 48% 46% 43% 46% 46% 46%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 2 NW 2 NW 2 NNW 2 NNW 4 N 4 N 4 N 4 N
UV Index 2 3 4 4 4 3 2 1
Cloud Cover 11% 11% 11% 17% 25% 25% 25% 25%
Dew Point 44° 45° 48° 49° 49° 53° 54° 53°
Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F

Temperature History - Feb 16

more Historical Weather Data >
  Today Normal Record 2/16/2015
High 76° 62° N/A 72°
Low 53° 41° N/A 47°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:57 AM with 10:52 of sunlight, then sets at 5:49 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:34 PM with 14:24 of moolight, then sets at 2:58 AM

Los Altos Weather Report

San Francisco: Record-challenging warmth to return early this week

February 13, 2016; 7:00 PM ET

Dry and unseasonably warm conditions will continue in San Francisco next week with another shot of record-breaking warmth. more >

Tue. Dust & Dander

Tue. Wind Maps