• Mostly clear 59°
    Asthma Current Weather
    • Relative Humidity
      39%
    • Yesterday
      Temp
      56°
    • Pressure
      30.16 inHg
  • Tonight

    Mar 4

    Lo 44°

    Clear

    Asthma Weather
    • Hi
      RealFeel
      71°
    • UV
      5 - Moderate
    • Air Qual.
      Good
    Day Details >
  • Tomorrow

    Mar 5

    Hi 71°

    Plenty of sun

    Beneficial weather for asthma
    • Hi
      RealFeel
      76°
    • UV
      5 - Moderate
    • Air Qual.
      Good
    Day Details >
  • Friday

    Mar 6

    Hi 72°

    Plenty of sunshine

    Beneficial weather for asthma
    • Hi
      RealFeel
      74°
    • UV
      5 - Moderate
    • Air Qual.
      Good
    Day Details >
Next

Pleasant this weekend

3/4 3/5 Now: 7:08pm
PM 7-11
  • 7pm Clear 58° 0%
  • 8pm Clear 56° 0%
  • 9pm Clear 55° 0%
  • 10pm Clear 53° 0%
  • 11pm Clear 51° 0%
AM 6-11
  • 6am Clear 44° 0%
  • 7am Sunny 45° 0%
  • 8am Sunny 49° 0%
  • 9am Sunny 54° 0%
  • 10am Sunny 59° 0%
  • 11am Sunny 63° 0%
PM 12-5
  • 12pm Sunny 66° 0%
  • 1pm Sunny 68° 0%
  • 2pm Sunny 69° 0%
  • 3pm Sunny 71° 0%
  • 4pm Sunny 69° 0%
  • 5pm Sunny 66° 0%
Hourly Forecast >
Mar 04, 2015; 5:06 PM ET
Five-day Weather Forecast for San Francisco, CA
San Francisco, CA Weather Forecast

Los Altos 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 >

Respiratory Health Live Feed

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Making a Forecast: The Sixth Sense

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

Wed. Air Quality

Wed. Asthma Risk

Wed. UV Index