• Today

    Feb 28

    60°Lo 47°

    Variably cloudy, a t-storm

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

    Mar 1

    63°Lo 48°

    Partly sunny

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

    Mar 2

    60°Lo 45°

    A brief shower or two

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

    Mar 3

    62°Lo 45°

    Plenty of sunshine

    Low ragweed pollen levels
    • Precip
      4%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      0%
    more
  • Wed

    Mar 4

    64°Lo 45°

    Plenty of sun

    Ragweed Pollen Weather
    • Precip
      6%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      0%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
2am
3am 4am 5am 6am 7am 8am 9am
  2am 3am 4am 5am 6am 7am 8am 9am
Forecast
Partly Cloudy
Partly Cloudy
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 50° 48° 48° 47° 48° 49° 51° 54°
RealFeel® 50° 48° 48° 47° 48° 49° 52° 56°
Humidity 80% 82% 84% 85% 82% 77% 72% 65%
   
  2am 3am 4am 5am 6am 7am 8am 9am
Rain
 
6%
 
6%
 
6%
 
6%
 
4%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
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0%
 
0%
   
  2am 3am 4am 5am 6am 7am 8am 9am
Wind (mph) 4 NE 5 NE 5 NE 4 ENE 4 ENE 4 ENE 5 ENE 6 ENE
UV Index 0 0 0 0 0 0 1 2
Cloud Cover 45% 37% 26% 26% 26% 26% 26% 26%
Dew Point 44° 43° 43° 42° 42° 42° 43° 42°
Middle Grid line 55 F Middle Grid line 50 F Middle Grid line 45 F

Temperature History - Mar 1

more Historical Weather Data >
  Today Normal Record 3/1/2014
High 63° 61° 74° (1959) 63°
Low 48° 47° 35° (1955) 53°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:41 AM with 11:22 of sunlight, then sets at 6:03 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:46 PM with 13:59 of moolight, then sets at 4:45 AM

San Bruno Weather Report

Western Storm to Deliver Fraction of Much-Needed Rain, Snow

February 28, 2015; 8:13 AM ET

A slow-moving storm will continue to affect the West this weekend and into the first part of next week with rounds of precipitation for some needy areas as well as trouble for travelers. more >

Making a Forecast: The Sixth Sense

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

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps