and then 
to Add to home screen San Francisco
Rise 6:31AM
Set 7:47PM
Reporting Station : San Francisco International Airport, CA
There are
0 Weather Alerts
for your area.
0 Weather Alerts
for your area.
53°F
Passing clouds. Cool.
- 77%
- 9 mphW
-
77%
Humidity -
46°F
Dew Point -
50°F
Comfort Level -
10 mi
Visibility -
29.99 in
Barometric Pressure - Air Quality
Waning gibbous
Rise*
Set8:56AM
FRIDAY NIGHT
SFO / No delays
Air Quality Observations
| Station Name | Concentration | Category |
|---|---|---|
| Grass Valley | 42 ppb |  Good |
| Colfax | 39 ppb | Good |
| Lassen Volcanic NP | 50 ppb | Good |
| Yosemite NP Turtleback Dome | 50 ppb | Good |
| Sparks | 55 ppb |  Moderate |
Air Quality Forecast
| Date | Pollutant | Concentration | Category |
|---|---|---|---|
| 16 Apr | Particulates smaller than 2.5 microns | 32 ppb | Good |
| 17 Apr | Particulates smaller than 2.5 microns | 50 ppb | Good |
| 18 Apr | Particulates smaller than 2.5 microns | 44 ppb | Good |
| 19 Apr | Particulates smaller than 2.5 microns | n/a | Good |
| 20 Apr | Particulates smaller than 2.5 microns | n/a | Good |
| 21 Apr | Particulates smaller than 2.5 microns | n/a | Good |
| 22 Apr | Particulates smaller than 2.5 microns | n/a | Good |
Oakland
San Rafael
Redwood City
Rise 6:31AM
Set 7:47PM
Waning gibbous
Rise*
Set8:56AM
FRIDAY NIGHT
SFO / No delays
Extended Forecast
| Date | Category | Reason |
|---|---|---|
| 18 Apr Friday | Good |
well-mixed atmosphere, low pressure |
| 19 Apr Saturday | Good |
well-mixed atmosphere, low pressure |
| 20 Apr Sunday | Good |
strong winds, well-mixed atmosphere, low pressure |
| 21 Apr Monday | Good |
strong winds, well-mixed atmosphere, low pressure |
| 22 Apr Tuesday | Good |
strong winds, well-mixed atmosphere, low pressure |
| 23 Apr Wednesday | Good |
strong winds, well-mixed atmosphere, low pressure |
| 24 Apr Thursday | Good |
strong winds, well-mixed atmosphere, low pressure |
Detailed Forecast
| Date | Category | Reason |
|---|---|---|
| 18 Apr Night | Good |
well-mixed atmosphere, low pressure |
| 18 Apr Morning | Good |
well-mixed atmosphere, low pressure |
| 18 Apr Afternoon | Good |
well-mixed atmosphere, low pressure |
| 18 Apr Evening | Good |
well-mixed atmosphere, low pressure |
| 19 Apr Night | Good |
well-mixed atmosphere, low pressure |
| 19 Apr Morning | Good |
well-mixed atmosphere, low pressure |
| 19 Apr Afternoon | Good |
well-mixed atmosphere, low pressure |
| 19 Apr Evening | Good |
well-mixed atmosphere, low pressure |