• Today

    Apr 18

    68°Lo 50°

    Partly sunny and delightful

    Neutral weather for asthma
    • Hi
      RealFeel
      72°
    • UV
      7 - High
    • Air Qual.
      Good
  • Sun

    Apr 19

    67°Lo 51°

    Low clouds break for some sun

    Neutral weather for asthma
    • Hi
      RealFeel
      71°
    • UV
      7 - High
    • Air Qual.
      Good
    more
  • Mon

    Apr 20

    65°Lo 51°

    Partly sunny

    Neutral weather for asthma
    • Hi
      RealFeel
      66°
    • UV
      7 - High
    • Air Qual.
      Good
    more
  • Tue

    Apr 21

    62°Lo 51°

    Cloudy

    Neutral weather for asthma
    • Hi
      RealFeel
      59°
    • UV
      4 - Moderate
    • Cloud
      Cover
      94%
    more
  • Wed

    Apr 22

    62°Lo 50°

    A couple of showers possible

    Beneficial weather for asthma
    • Hi
      RealFeel
      64°
    • UV
      6 - High
    • Cloud
      Cover
      77%
    more
Next Previous
< Previous 8 hours Next 8 hours >
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Forecast
Cloudy
Cloudy
Partly Cloudy
Mostly Sunny
Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Temp (°F) 49° 49° 48° 49° 52° 54° 56° 59°
RealFeel® 48° 48° 48° 49° 53° 58° 64° 70°
Humidity 88% 90% 91% 90% 87% 83% 78% 72%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Rain
 
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Snow
 
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Ice
 
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  4am 5am 6am 7am 8am 9am 10am 11am
Wind (mph) 6 NW 5 NW 5 WNW 5 WNW 2 W 4 W 4 WNW 4 NW
UV Index 0 0 0 0 0 1 3 5
Cloud Cover 67% 51% 40% 28% 100% 88% 79% 76%
Dew Point 46° 46° 46° 46° 48° 49° 49° 50°
Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F Middle Grid line 45 F

Temperature History - Apr 18

more Historical Weather Data >
  Today Normal Record 4/18/2014
High 68° 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; 4:31 AM ET

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

The Dangers of Bus Travel

Dec 10, 2012; 5:00 AM ET While bus transportation is one of the most affordable, it is important to know which motor coach companies rank highest in safety.

Sat. Air Quality

Sat. Asthma Risk

Sat. UV Index