• Early AM

    Apr 21

    Lo 44°

    Increasing clouds

    Dust & Dander Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Today

    Apr 21

    72°Lo 43°

    Mostly cloudy and not as warm

    Low indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
  • Tue

    Apr 22

    62°Lo 37°

    Mainly cloudy, showers around

    Low indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Wed

    Apr 23

    66°Lo 44°

    Cool with partial sunshine

    Low indoor dust & dander levels
    • Precip
      10%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      37%
    more
  • Thu

    Apr 24

    67°Lo 47°

    Mainly cloudy

    Low indoor dust & dander levels
    • Precip
      25%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      78%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Mon
2am
3am 4am 5am 6am 7am 8am 9am
  2am 3am 4am 5am 6am 7am 8am 9am
Forecast
Cloudy
Cloudy
Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Partly Sunny
Partly Sunny
Temp (°F) 51° 48° 46° 45° 44° 46° 47° 53°
RealFeel® 52° 49° 48° 47° 45° 47° 50° 57°
Humidity 50% 57% 63% 70% 76% 81% 70% 60%
   
  2am 3am 4am 5am 6am 7am 8am 9am
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  2am 3am 4am 5am 6am 7am 8am 9am
Wind (mph) 0 0 0 1 N 1 N 1 N 1 NNE 2 NW
UV Index 0 0 0 0 0 0 1 2
Cloud Cover 60% 65% 71% 77% 82% 87% 31% 46%
Dew Point 33° 33° 34° 36° 37° 40° 38° 40°
Middle Grid line 55 F Middle Grid line 50 F Middle Grid line 45 F Middle Grid line 40 F

Temperature History - Apr 21

more Historical Weather Data >
  Today Normal Record 4/21/2013
High 72° 70° 97° (2009) 87°
Low 43° 43° 30° (1920) 44°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:28 AM with 13:28 of sunlight, then sets at 7:56 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:30 AM with 10:31 of moolight, then sets at 12:01 PM

Top Story

Ukiah Weather Report

Chance of Rain in San Francisco on Tuesday

April 21, 2014; 4:56 AM ET

There hasn't been any measurable precipitation in San Francisco since April 4. more >

Is it a Cold or the Flu?

Apr 19, 2014; 5:00 AM ET Symptoms caused by the common cold can often resemble those associated with the influenza virus, so how do you differentiate between the two?

Mon. Pollen

Mon. Dust & Dander

Mon. Wind Maps