• Today

    Mar 4

    65°Lo 47°

    Brilliant sunshine

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

    Mar 5

    68°Lo 47°

    Plenty of sun

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

    Mar 6

    68°Lo 47°

    Plenty of sunshine

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

    Mar 7

    68°Lo 48°

    Sunny to partly cloudy

    Low ragweed pollen levels
    • Precip
      3%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      25%
    more
  • Sun

    Mar 8

    66°Lo 49°

    Partly sunny

    Ragweed Pollen Weather
    • Precip
      4%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      45%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
2pm
3pm 4pm 5pm 6pm 7pm 8pm 9pm
  2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm
Forecast
Mostly Sunny
Mostly Sunny
Mostly Sunny
Sunny
Sunny
Clear
Clear
Clear
Temp (°F) 63° 65° 64° 62° 60° 57° 54° 53°
RealFeel® 70° 67° 65° 61° 58° 55° 53° 53°
Humidity 50% 48% 49% 53% 57% 65% 70% 72%
   
  2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
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  2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm
Wind (mph) 5 W 5 WNW 6 WNW 6 WNW 6 WNW 6 NW 5 NW 5 NNW
UV Index 4 2 1 0 0 0 0 0
Cloud Cover 19% 16% 11% 7% 3% 0% 0% 0%
Dew Point 44° 45° 44° 44° 45° 45° 44° 45°
Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F

Temperature History - Mar 4

more Historical Weather Data >
  Today Normal Record 3/4/2014
High 65° 61° 77° (1984) 62°
Low 47° 47° 35° (1966) 53°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:37 AM with 11:29 of sunlight, then sets at 6:06 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:30 PM with 12:54 of moolight, then sets at 6:24 AM

San Bruno Weather Report

San Francisco: Dry Pattern, Warmth to Continue Through Weekend

March 4, 2015; 11:35 AM ET

Above-average temperatures and clear, sunny skies will sweep across San Francisco through out the rest of the week and into early next week. more >

Making a Forecast: The Sixth Sense

Feb 16, 2015; 5:00 AM ET What steps go into making a forecast?

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps