• Today

    Aug 1

    78°Lo 63°

    Low clouds, then some sun

    Excellent for an outdoor concert
    • Hi
      RealFeel
      81°
    • Precip
      0%
    • Wind
      Speed
      10 mph
  • Sun

    Aug 2

    76°Lo 61°

    Low clouds, then sunshine

    Very Good for an outdoor concert
    • Hi
      RealFeel
      79°
    • Precip
      0%
    • Wind
      Speed
      10 mph
    more
  • Mon

    Aug 3

    74°Lo 61°

    Low clouds, then sun

    Very Good for an outdoor concert
    • Hi
      RealFeel
      77°
    • Precip
      0%
    • Wind
      Speed
      12 mph
    more
  • Tue

    Aug 4

    75°Lo 57°

    Low clouds, then sunshine

    Very Good for an outdoor concert
    • Hi
      RealFeel
      78°
    • Precip
      0%
    • Wind
      Speed
      10 mph
    more
  • Wed

    Aug 5

    78°Lo 56°

    Low clouds break for some sun

    Very Good for an outdoor concert
    • Hi
      RealFeel
      83°
    • Precip
      0%
    • Wind
      Speed
      8 mph
    more
Next Previous
Hi 78° RealFeel® 81° Precipitation 0%

Day

N

E

S

W

  • WSW 10 mph
  • Gusts: 17 mph

Low clouds breaking for some sun

  • Max UV Index: 8 (Very High)
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 63° RealFeel® 61° Precipitation 0%

Night

N

E

S

W

  • WSW 7 mph
  • Gusts: 15 mph

Partly cloudy this evening; low clouds late

  • Max UV Index: N/A
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Aug 1

more Historical Weather Data >
  Today Normal Record 8/1/2014
High 78° N/A N/A 79°
Low 63° N/A N/A 60°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:12 AM with 14:04 of sunlight, then sets at 8:16 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 9:09 PM with 11:42 of moolight, then sets at 8:51 AM

Union City Weather Report

San Francisco: Dry Weather Continues in the Bay Area

August 1, 2015; 2:22 PM 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 >

Bad Weather and the Ballot Box

Oct 28, 2012; 5:00 AM ET The presidential election is only days away. How does the weather affect the number of people who show up to vote?