and then 
to Add to home screen San Francisco
Rise 6:56AM
Set 7:08PM
Reporting Station : San Francisco International Airport, CA
There are
0 Weather Alerts
for your area.
0 Weather Alerts
for your area.
57°F
Passing clouds. Cool.
- 90%
- 8 mphWSW
-
90%
Humidity -
54°F
Dew Point -
55°F
Comfort Level -
10 mi
Visibility -
29.89 in
Barometric Pressure - Air Quality
Waning gibbous
Rise8:42PM
Set10:05AM
FRIDAY NIGHT
SFO / No delays
Air Quality Observations
| Station Name | Concentration | Category |
|---|---|---|
| Woodland | 47 ppb |  Good |
| Colfax | 55 ppb |  Moderate |
| Yosemite NP Turtleback Dome | 54 ppb | Moderate |
| Sparks | 55 ppb | Moderate |
Air Quality Forecast
| Date | Pollutant | Concentration | Category |
|---|---|---|---|
| 18 Sep | Ozone | 23 ppb | Good |
| 19 Sep | Particulates smaller than 2.5 microns | 50 ppb | Good |
| 20 Sep | Particulates smaller than 2.5 microns | 50 ppb | Good |
| 21 Sep | Particulates smaller than 2.5 microns | n/a | Good |
| 22 Sep | Particulates smaller than 2.5 microns | n/a | Moderate |
| 23 Sep | Particulates smaller than 2.5 microns | n/a | Moderate |
| 24 Sep | Particulates smaller than 2.5 microns | n/a | Moderate |
Oakland
San Rafael
Redwood City
Rise 6:56AM
Set 7:08PM
Waning gibbous
Rise8:42PM
Set10:05AM
FRIDAY NIGHT
SFO / No delays
Extended Forecast
| Date | Category | Reason |
|---|---|---|
| 20 Sep Friday | Good |
well-mixed atmosphere, low pressure |
| 21 Sep Saturday | Good |
well-mixed atmosphere, low pressure |
| 22 Sep Sunday | Good |
strong winds, well-mixed atmosphere, low pressure |
| 23 Sep Monday | Good |
strong winds, well-mixed atmosphere, low pressure |
| 24 Sep Tuesday | Good |
strong winds, well-mixed atmosphere, low pressure |
| 25 Sep Wednesday | Good |
strong winds, well-mixed atmosphere, low pressure |
| 26 Sep Thursday | Good |
strong winds, well-mixed atmosphere, low pressure |
Detailed Forecast
| Date | Category | Reason |
|---|---|---|
| 20 Sep Morning | Good |
well-mixed atmosphere, low pressure |
| 20 Sep Afternoon | Good |
well-mixed atmosphere, low pressure |
| 20 Sep Evening | Good |
well-mixed atmosphere, low pressure |
| 21 Sep Night | Good |
well-mixed atmosphere, low pressure |
| 21 Sep Morning | Good |
well-mixed atmosphere, low pressure |
| 21 Sep Afternoon | Good |
well-mixed atmosphere, low pressure |
| 21 Sep Evening | Good |
well-mixed atmosphere, low pressure |
| 22 Sep Night | Good |
well-mixed atmosphere, low pressure |