and then 
to Add to home screen San Francisco
Rise 7:22AM
Set 5:20PM
Reporting Station : San Francisco International Airport, CA
There are
13 Weather Alerts
for your area.
13 Weather Alerts
for your area.
54°F
Clear. Cool.
- 31%
- 5 mphSE
-
31%
Humidity -
24°F
Dew Point -
53°F
Comfort Level -
10 mi
Visibility -
30.44 in
Barometric Pressure - Air Quality
Waning gibbous
Rise*
Set10:47AM
TUESDAY NIGHT
SFO / No delays
Air Quality Observations
| Station Name | Concentration | Category |
|---|---|---|
| Grass Valley | 50 ppb |  Good |
| Colfax | 45 ppb | Good |
| Lassen Volcanic NP | 49 ppb | Good |
| Yosemite NP Turtleback Dome | 51 ppb |  Moderate |
| Sparks | 42 ppb | Good |
Air Quality Forecast
| Date | Pollutant | Concentration | Category |
|---|---|---|---|
| 19 Jan | Particulates smaller than 2.5 microns | 52 ppb | Moderate |
| 20 Jan | Particulates smaller than 2.5 microns | 58 ppb | Moderate |
| 21 Jan | Particulates smaller than 2.5 microns | 64 ppb | Moderate |
| 22 Jan | Particulates smaller than 2.5 microns | n/a | Moderate |
| 23 Jan | Particulates smaller than 2.5 microns | n/a | Moderate |
| 24 Jan | Particulates smaller than 2.5 microns | n/a | Moderate |
| 25 Jan | Particulates smaller than 2.5 microns | n/a | Moderate |
Oakland
San Rafael
Redwood City
Rise 7:22AM
Set 5:20PM
Waning gibbous
Rise*
Set10:47AM
TUESDAY NIGHT
SFO / No delays
Extended Forecast
| Date | Category | Reason |
|---|---|---|
| 21 Jan Tuesday | Good |
well-mixed atmosphere, low pressure |
| 22 Jan Wednesday | Good |
well-mixed atmosphere |
| 23 Jan Thursday | Good |
well-mixed atmosphere, low pressure |
| 24 Jan Friday | Good |
well-mixed atmosphere, low pressure |
| 25 Jan Saturday | Good |
strong winds, well-mixed atmosphere, low pressure |
| 26 Jan Sunday | Good |
well-mixed atmosphere, low pressure |
| 27 Jan Monday | Good |
well-mixed atmosphere, low pressure |
Detailed Forecast
| Date | Category | Reason |
|---|---|---|
| 21 Jan Night | Good |
well-mixed atmosphere, low pressure |
| 21 Jan Morning | Good |
well-mixed atmosphere, low pressure |
| 21 Jan Afternoon | Good |
well-mixed atmosphere, low pressure |
| 21 Jan Evening | Good |
well-mixed atmosphere |
| 22 Jan Night | Good |
cold temperatures, well-mixed atmosphere |
| 22 Jan Morning | Good |
well-mixed atmosphere |
| 22 Jan Afternoon | Good |
well-mixed atmosphere |
| 22 Jan Evening | Good |
well-mixed atmosphere |