• Today

    Sep 17

    89°Lo 61°

    Sun mixing with clouds

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
  • Thu

    Sep 18

    83°Lo 58°

    Partly sunny

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Fri

    Sep 19

    88°Lo 60°

    Mostly sunny

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Sat

    Sep 20

    88°Lo 59°

    Plenty of sunshine

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Sun

    Sep 21

    87°Lo 58°

    Plenty of sunshine

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
10am
11am 12pm 1pm 2pm 3pm 4pm 5pm
  10am 11am 12pm 1pm 2pm 3pm 4pm 5pm
Forecast
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Partly Sunny
Partly Sunny
Partly Sunny
Partly Sunny
Temp (°F) 72° 78° 82° 84° 87° 88° 89° 88°
RealFeel® 73° 79° 84° 86° 87° 87° 86° 84°
Humidity 44% 37% 33% 29% 27% 25% 25% 26%
   
  10am 11am 12pm 1pm 2pm 3pm 4pm 5pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  10am 11am 12pm 1pm 2pm 3pm 4pm 5pm
Wind (mph) 5 SSE 6 S 7 SSW 8 SSW 9 SSW 10 SSW 11 SW 11 SW
UV Index 3 4 5 6 5 4 3 1
Cloud Cover 12% 11% 10% 10% 46% 46% 46% 46%
Dew Point 49° 50° 50° 49° 49° 48° 49° 49°
Middle Grid line 90 F Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F

Temperature History - Sep 17

more Historical Weather Data >
  Today Normal Record 9/17/2013
High 89° 85° 100° (1979) 75°
Low 61° 59° 45° (2006) 59°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:48 AM with 12:22 of sunlight, then sets at 7:10 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:55 AM with 14:26 of moolight, then sets at 3:21 PM

Top Story

Loomis Weather Report

San Francisco: Sunshine, Seasonable Temperatures to Continue

September 17, 2014; 7:35 AM ET

The Bay Area will continue to feature sunshine and seasonable temperatures as the summer season comes to a close. more >

The 540 Snow Line

Dec 20, 2012; 5:00 AM ET The 540 line is often used by meteorologists to determine the chances of rain vs. snow.

48 Hour Precipitation Forecast

Wed. Snow Day Potential