and then 
to Add to home screen San Francisco
Rise 7:24AM
Set 5:14PM
Reporting Station : San Francisco International Airport, CA
There are
7 Weather Alerts
for your area.
7 Weather Alerts
for your area.
44°F
Passing clouds. Quite cool.
- 93%
- 5 mphSSW
-
93%
Humidity -
42°F
Dew Point -
42°F
Comfort Level -
10 mi
Visibility -
30.27 in
Barometric Pressure - Air Quality
Full moon
Rise7:19PM
Set8:52AM
WEDNESDAY MORNING
SFO / No delays
Air Quality Observations
| Station Name | Concentration | Category |
|---|---|---|
| Grass Valley | 49 ppb |  Good |
| Colfax | 41 ppb | Good |
| Yosemite NP Turtleback Dome | 47 ppb | Good |
| Sparks | 25 ppb | Good |
Air Quality Forecast
| Date | Pollutant | Concentration | Category |
|---|---|---|---|
| 13 Jan | Ozone | 29 ppb | Good |
| 14 Jan | Particulates smaller than 2.5 microns | 56 ppb |  Moderate |
| 15 Jan | Particulates smaller than 2.5 microns | 68 ppb | Moderate |
| 16 Jan | Particulates smaller than 2.5 microns | n/a | Moderate |
| 17 Jan | Particulates smaller than 2.5 microns | n/a | Moderate |
| 18 Jan | Particulates smaller than 2.5 microns | n/a | Moderate |
| 19 Jan | Particulates smaller than 2.5 microns | n/a | Moderate |
Oakland
San Rafael
Redwood City
Rise 7:24AM
Set 5:14PM
Full moon
Rise7:19PM
Set8:52AM
WEDNESDAY MORNING
SFO / No delays
Extended Forecast
| Date | Category | Reason |
|---|---|---|
| 15 Jan Wednesday | Good |
well-mixed atmosphere, low pressure |
| 16 Jan Thursday | Good |
well-mixed atmosphere, low pressure |
| 17 Jan Friday | Good |
well-mixed atmosphere, low pressure |
| 18 Jan Saturday | Good |
well-mixed atmosphere, low pressure |
| 19 Jan Sunday | Good |
well-mixed atmosphere, low pressure |
| 20 Jan Monday | Good |
well-mixed atmosphere, low pressure |
| 21 Jan Tuesday | Good |
well-mixed atmosphere, low pressure |
Detailed Forecast
| Date | Category | Reason |
|---|---|---|
| 15 Jan Morning | Good |
well-mixed atmosphere, low pressure |
| 15 Jan Afternoon | Good |
well-mixed atmosphere, low pressure |
| 15 Jan Evening | Good |
well-mixed atmosphere, low pressure |
| 16 Jan Night | Good |
well-mixed atmosphere, low pressure |
| 16 Jan Morning | Good |
well-mixed atmosphere, low pressure |
| 16 Jan Afternoon | Good |
well-mixed atmosphere, low pressure |
| 16 Jan Evening | Good |
well-mixed atmosphere, low pressure |
| 17 Jan Night | Good |
well-mixed atmosphere, low pressure |