• Early AM

    Jul 31

    Lo 65°

    Partly to mostly cloudy

    Ragweed Pollen Weather
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Today

    Jul 31

    95°Lo 63°

    Hot with clouds breaking

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
  • Sat

    Aug 1

    90°Lo 63°

    Partly sunny

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Sun

    Aug 2

    89°Lo 61°

    Mostly sunny

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Mon

    Aug 3

    87°Lo 59°

    Mostly sunny

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
4am
5am 6am 7am 8am 9am 10am 11am
  4am 5am 6am 7am 8am 9am 10am 11am
Forecast
Cloudy
Partly Cloudy
Partly Cloudy
Partly Sunny
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Temp (°F) 68° 67° 65° 68° 72° 76° 79° 84°
RealFeel® 66° 65° 63° 66° 71° 77° 83° 88°
Humidity 67% 74% 76% 74% 59% 52% 43% 37%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Rain
 
0%
 
0%
 
0%
 
0%
 
7%
 
7%
 
7%
 
7%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  4am 5am 6am 7am 8am 9am 10am 11am
Wind (mph) 6 NW 5 NW 5 NW 5 NW 6 WNW 6 W 6 W 7 WNW
UV Index 0 0 0 0 1 2 4 5
Cloud Cover 60% 45% 45% 45% 76% 76% 76% 76%
Dew Point 57° 58° 58° 59° 57° 57° 55° 55°
Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F

Temperature History - Jul 31

more Historical Weather Data >
  Today Normal Record 7/31/2014
High 95° N/A N/A 100°
Low 63° N/A N/A 65°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:09 AM with 14:07 of sunlight, then sets at 8:16 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:25 PM with 11:14 of moolight, then sets at 7:39 AM

Tracy Weather Report

San Francisco: Dry Weather Continues in the Bay Area

July 31, 2015; 4:41 AM ET

The only fly in the ointment in the forecast will be low morning clouds which may cause travel delays at San Francisco International Airport. more >

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps