• Today

    Mar 2

    62°Lo 43°

    Mostly cloudy

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Tue

    Mar 3

    66°Lo 42°

    Sunny

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Wed

    Mar 4

    68°Lo 43°

    Fog in the a.m.; mostly sunny

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
  • Thu

    Mar 5

    71°Lo 44°

    Fog in the a.m.; mostly sunny

    Low ragweed pollen levels
    • Precip
      3%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      0%
    more
  • Fri

    Mar 6

    72°Lo 45°

    Fog in the a.m.; mostly sunny

    Ragweed Pollen Weather
    • Precip
      2%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      3%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Fog
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 50° 56° 61° 63° 65° 66° 68° 67°
RealFeel® 57° 65° 71° 73° 74° 71° 69° 66°
Humidity 68% 59% 51% 45% 40% 37% 35% 35%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
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Ice
 
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  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 2 E 2 ENE 4 ENE 4 N 4 N 5 N 6 N 6 N
UV Index 2 4 5 5 5 4 2 1
Cloud Cover 11% 11% 11% 11% 11% 11% 11% 11%
Dew Point 40° 42° 42° 41° 40° 39° 39° 39°
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 - Mar 4

more Historical Weather Data >
  Today Normal Record 3/4/2014
High 68° N/A N/A 62°
Low 43° N/A N/A 52°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:34 AM with 11:29 of sunlight, then sets at 6:03 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:27 PM with 12:54 of moolight, then sets at 6:21 AM

Tracy Weather Report

San Francisco: Dry Pattern to Return Bringing Sunny, Warm Days

March 2, 2015; 2:44 PM ET

San Francisco will get progressively warmer everyday this week, reaching 70 degrees F by the weekend. more >

Making a Forecast: The Sixth Sense

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

Wed. Dust & Dander

Wed. Wind Maps