• Today

    Apr 20

    71°Lo 50°

    Sunny to partly cloudy

    Beneficial weather for arthritis pain
    • Rain
      0 in
    • Hours of Precip
      0
    • UV
      8 - Very High
  • Mon

    Apr 21

    62°Lo 51°

    Low clouds breaking

    Neutral weather for arthritis pain
    • Rain
      0.04 in
    • Hours of Precip
      2
    • UV
      7 - High
    more
  • Tue

    Apr 22

    60°Lo 47°

    Mostly cloudy with a shower

    Beneficial weather for arthritis pain
    • Rain
      0.04 in
    • Hours of Precip
      1
    • UV
      6 - High
    more
  • Wed

    Apr 23

    63°Lo 52°

    Mostly sunny

    Beneficial weather for arthritis pain
    • Rain
      0 in
    • Hours of Precip
      0
    • UV
      8 - Very High
    more
  • Thu

    Apr 24

    64°Lo 52°

    Times of clouds and sun

    Beneficial weather for arthritis pain
    • Rain
      0.04 in
    • Hours of Precip
      2
    • UV
      7 - High
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
7am
8am 9am 10am 11am 12pm 1pm 2pm
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Forecast
Partly Sunny
Partly Sunny
Partly Sunny
Mostly Sunny
Partly Sunny
Mostly Sunny
Mostly Sunny
Sunny
Temp (°F) 49° 54° 56° 58° 61° 64° 68° 71°
RealFeel® 48° 55° 60° 65° 70° 73° 75° 76°
Humidity 92% 88% 81% 85% 72% 64% 55% 50%
   
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
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0%
Ice
 
0%
 
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  7am 8am 9am 10am 11am 12pm 1pm 2pm
Wind (mph) 3 WSW 2 NNE 3 NNW 3 WNW 4 ENE 6 NNW 7 NW 6 NW
UV Index 0 1 2 4 6 7 8 7
Cloud Cover 31% 45% 44% 25% 44% 13% 12% 7%
Dew Point 47° 50° 51° 54° 52° 52° 52° 51°
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 Middle Grid line 50 F Middle Grid line 45 F

Temperature History - Apr 20

more Historical Weather Data >
  Today Normal Record 4/20/2013
High 71° 65° 91° (2009) 73°
Low 50° 49° 38° (1967) 50°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:28 AM with 13:22 of sunlight, then sets at 7:50 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:32 AM with 10:24 of moolight, then sets at 10:56 AM

Top Story

San Bruno Weather Report

Chance of Rain in San Francisco on Tuesday

April 20, 2014; 3:10 PM ET

There hasn't been any measurable precipitation in San Francisco since April 4. more >

Is it a Cold or the Flu?

Apr 19, 2014; 5:00 AM ET Symptoms caused by the common cold can often resemble those associated with the influenza virus, so how do you differentiate between the two?

Sun. Arthritis Pain

Sun. UV Index