• Today

    Dec 18

    61°Lo 51°

    Mostly cloudy

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

    Dec 19

    59°Lo 49°

    Periods of rain

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

    Dec 20

    60°Lo 47°

    Mostly cloudy

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

    Dec 21

    64°Lo 50°

    Mostly cloudy

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

    Dec 22

    65°Lo 47°

    Mostly sunny

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
11am
12pm 1pm 2pm 3pm 4pm 5pm 6pm
  11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm
Forecast
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Cloudy
Partly Sunny
Partly Cloudy
Cloudy
Cloudy
Temp (°F) 58° 59° 60° 60° 61° 59° 57° 55°
RealFeel® 56° 61° 61° 62° 58° 55° 53° 51°
Humidity 69% 69% 64% 62% 65% 76% 80% 83%
   
  11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm
Rain
 
11%
 
7%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm
Wind (mph) 8 SE 5 SE 5 SE 0 8 ESE 8 ESE 7 ESE 7 ESE
UV Index 2 2 2 1 1 0 0 0
Cloud Cover 75% 75% 75% 90% 45% 54% 61% 68%
Dew Point 48° 49° 48° 47° 49° 51° 51° 50°
Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F

Temperature History - Dec 18

more Historical Weather Data >
  Today Normal Record 12/18/2013
High 61° 58° 69° (1958) 62°
Low 51° 42° 26° (1965) 44°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:16 AM with 9:36 of sunlight, then sets at 4:52 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:39 AM with 10:53 of moolight, then sets at 2:32 PM

San Jose Weather Report

San Francisco: Dry Weather Ahead for the Weekend

December 18, 2014; 3:34 PM ET

Conditions will turn dry for San Francisco this weekend and last into next week. 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

Thu. Snow Day Potential