San Francisco, California

Last updated: 6:22 PM CDT · Refresh

16°C

Feels like 14°

Mostly Cloudy

▲ 17° / ▼ 13°

Wind

9 mph WSW

Humidity

83%

Dew Point

13°

Pressure

29.80 inHg

Visibility

10 mi

UV Index

3.5

Cloud Cover

85%

Sunrise

6:55 AM

Sunset

7:09 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: San Francisco is currently mostly cloudy at 16°C. Dry conditions are expected through the next 24 hours. Sunrise: 6:55AM · Sunset: 7:09PM.

36 AQI · Good Dominant: PM2.5 Air Quality

Hourly Forecast · Next 24 Hours

Now

16°

5 PM

17°

6 PM

17°

7 PM

16°

8 PM

16°

9 PM

14°

10 PM

14°

19%

11 PM

14°

18%

12 AM

14°

18%

1 AM

14°

14%

2 AM

14°

14%

3 AM

14°

14%

4 AM

14°

14%

5 AM

13°

14%

6 AM

13°

15%

7 AM

13°

15%

8 AM

13°

16%

9 AM

14°

16%

10 AM

14°

11 AM

16°

12 PM

16°

1 PM

17°

2 PM

17°

3 PM

18°

7-Day Forecast

Today

17° 13°

Mostly Cloudy.

Mon

19° 13°

Mostly Cloudy.

Tue

21° 14°

Partly Cloudy.

Wed

22° 14°

Haze.

Thu

23° 15°

Clear.

Fri

22° 14°

Mostly Clear.

Sat

22° 14°

Partly Cloudy.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 16° Mostly Cloudy 8% 9 mph WSW 83%

5 PM 17° Overcast 8% 11 mph W 81%

6 PM 17° Overcast 7% 11 mph W 84%

7 PM 16° Overcast 3% 10 mph W 88%

8 PM 16° Overcast 3% 10 mph W 90%

9 PM 14° Overcast 5% 9 mph WSW 92%

10 PM 14° Overcast 19% 9 mph WSW 94%

11 PM 14° Overcast 18% 8 mph WSW 94%

12 AM 14° Overcast 18% 8 mph WSW 94%

1 AM 14° Fog 14% 9 mph WSW 93%

2 AM 14° Fog 14% 9 mph WSW 92%

3 AM 14° Fog 14% 8 mph WSW 92%

4 AM 14° Overcast 14% 8 mph WSW 92%

5 AM 13° Overcast 14% 8 mph WSW 92%

6 AM 13° Overcast 15% 8 mph WSW 92%

7 AM 13° Overcast 15% 8 mph WSW 91%

8 AM 13° Overcast 16% 8 mph WSW 90%

9 AM 14° Overcast 16% 8 mph WSW 89%

10 AM 14° Mostly Cloudy 7% 8 mph WSW 87%

11 AM 16° Mostly Cloudy 8% 9 mph WSW 86%

12 PM 16° Mostly Cloudy 8% 9 mph WSW 85%

1 PM 17° Mostly Cloudy 8% 10 mph WSW 84%

2 PM 17° Mostly Cloudy 8% 10 mph WSW 84%

3 PM 18° Mostly Cloudy 8% 11 mph WSW 85%

15-Day Forecast

Today

9/20

Mostly Cloudy

19%

13°

17°

Mon

9/21

Mostly Cloudy

17%

13°

19°

Tue

9/22

Partly Cloudy

11%

14°

21°

Wed

9/23

Haze

13%

14°

22°

Thu

9/24

Clear

15°

23°

Fri

9/25

Mostly Clear

14°

22°

Sat

9/26

Partly Cloudy

14°

22°

Sun

9/27

Mostly Clear

14°

23°

Mon

9/28

Clear

15%

14°

25°

Tue

9/29

Mostly Clear

32%

16°

26°

Wed

9/30

Drizzle

60%

14°

26°

Thu

10/1

Clear

13°

26°

Fri

10/2

Clear

25%

14°

27°

Sat

10/3

Clear

14°

27°

Sun

10/4

Clear

25%

14°

27°

Good

U.S. Air Quality Index · Dominant: PM2.5

50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today

PM_2.5

Fine particulate matter

Dominant

36 AQI 6.4 µg/m³

O₃

Ground-level ozone

27 AQI 30 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Mon 36 Good 27 36

Tue 29 Good 29 29

Wed 32 Good 27 32

About the Air Quality Index

0–50 Good

51–100 Moderate

101–150 Unhealthy for Sensitive Groups

151–200 Unhealthy

201–300 Very Unhealthy

301–500 Hazardous

The U.S. AQI runs 0–500. The overall value equals the highest individual pollutant sub-index, and the dominant pollutant is the one driving it. PM_2.5 (fine particles) is reported in µg/m³ and ozone (O₃) in ppb. Forecast source: NWS NAQFC.

San Francisco, California

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