• Early AM

    May 3

    Lo 53°

    Cloudy

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

    May 3

    71°Lo 54°

    Clouds breaking for some sun

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

    May 4

    69°Lo 55°

    An afternoon shower in spots

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

    May 5

    66°Lo 53°

    Mostly cloudy with a t-storm

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

    May 6

    67°Lo 53°

    Partly sunny with a t-storm

    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 >
  Thu
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Mostly Cloudy
Mostly Cloudy
T-storms
Partly Cloudy
Partly Cloudy
T-storms
Partly Cloudy
Partly Cloudy
Temp (°F) 58° 60° 60° 63° 64° 62° 66° 65°
RealFeel® 59° 64° 64° 72° 72° 64° 70° 68°
Humidity 49% 46% 56% 49% 48% 84% 68% 69%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
34%
 
40%
 
51%
 
47%
 
47%
 
51%
 
47%
 
40%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 6 SSW 5 SW 5 WSW 6 W 7 W 8 W 9 W 9 W
UV Index 1 2 4 7 7 6 6 4
Cloud Cover 84% 76% 70% 70% 70% 70% 70% 70%
Dew Point 40° 39° 44° 44° 44° 58° 55° 54°
Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F

Temperature History - May 5

more Historical Weather Data >
  Today Normal Record 5/5/2015
High 66° 71° N/A 61°
Low 53° 50° N/A 48°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:07 AM with 13:56 of sunlight, then sets at 8:03 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:35 AM with 13:24 of moolight, then sets at 6:59 PM

Union City Weather Report

San Francisco: Showery weather to arrive by late week

May 2, 2016; 12:34 PM ET

Clouds and showers will move into the Bay Area following a dry start to May. more >

Thu. Dust & Dander

Thu. Wind Maps