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Marin City, California

Community in Marin County, California

Air quality

The air at Marin City

Index 47, good, led by ozone. Read at 7 PM from its reporting area, San Rafael (CA), 7 miles off.

47Good
  • Fine particles (PM2.5)38Good7.1 mi
  • Ozone47Good35 ppb7.1 mi
  • Nitrogen dioxide13Good14.5 ppb7.1 mi
  • Sulfur dioxide0Good0.5 ppb13 mi
  • Carbon monoxide-0.4 ppm7.1 mi

The days ahead

Good each day through Tue Oct 20, led by ozone. Yesterday measured 30, good.

Smoke, the next 41 hours

Little smoke near the ground through Sat 11 AM: the index from smoke stays at 17 or under.

ThuFriSat

Precipitation

What has fallen at Marin City

None in the last 3 days, to Thu 6 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.00in

Visibility

How far you can see at Marin City, the next 41 hours

Visibility stays 10 miles or more through Sat 11 AM.

ThuFriSat

On the radar over Marin City, CaliforniaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 5 instruments nearest Marin City, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.6 miles away.

measured now3 instruments

OaklandOAK

At an airfield/18.6 mi away/7 ft/6 ft below here

temp, wind, gust, visibility, precip, pressure

Rank12of 4,465

measured daily2 instruments

Mill Valley 2.1 SCA-MR-45

In a volunteer observer's own ground/1.6 mi away/240 ft/227 ft above here

precip, snowfall, snow depth

Rank-

Mill Valley - Muir WoodsMUIC1

At a cooperative observer's station/3.6 mi away/850 ft/837 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Oakland, drawn

The nearest airport reporting now, 18.6 mi from Marin City, California. From its report of Oct 15, 2026, 6:53 PM local time: 3 of its 6 sheets.

The sky

No cloud below 12,000 ft; visibility 10 mi or more.

Section of the sky over Oakland, height above the station to scale: no cloud detected below 12,000 feet, the reach of its ceilometer, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT OAKFIG. A THE SKY OVER OAKLANDSECTION, HEIGHT ABOVE THE STATION TO SCALE, EACH LAYER AT THE HEIGHT OF ITS BASE AS REPORTED; COVER IN EIGHTHS OF THE SKY; TOPS NOT MEASUREDFT ABOVE THE STATION05001,0001,5002,0002,5003,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETNO CLOUD DETECTED BELOW 12,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEOakland, the skySTATION REPORT · ASOS OAKTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-OAK-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

72.0 F with a dew point of 47.0 F, 41 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 5,700 ft up.

Chart of the air at Oakland: temperature 72.0 degrees Fahrenheit and dew point 47.0, 41 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 5,700 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT OAKFIG. B THE AIR AT OAKLANDTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0006,0007,0008,00030 F40 F50 F60 F70 F80 FSATURATES 5,700 FT ABOVE THE STATION, AT 41.6 FTEMPERATURE 72.0 FDEW POINT 47.0 FSPREAD 25.0 FRELATIVE HUMIDITY 41 PER CENTTHE AIR COOLS ABOUT 5.4 F EACH 1,000 FT IT RISES, AND ITS DEW POINT ABOUT 1 FSOLID: THE LIFTED AIR'S TEMPERATURE; DASHED: ITS DEW POINTTITLEOakland, the airSTATION REPORT · ASOS OAKTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-OAK-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northwest (330 degrees) at 5 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Oakland, north up: blowing from 330 degrees, the north northwest, at 5 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 2, light breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT OAKFIG. C THE WIND AT OAKLANDPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 330°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 5 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEOakland, the windSTATION REPORT · ASOS OAKTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-OAK-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Oakland, in 6 sheets, each beside the Field Book plates that explain it

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Snow on the ground

Elsewhere in California

33 places, each with its own forecast and its own instruments.

Near Marin City

The nearest places, each with its own forecast and the instruments nearest it.

Near Marin City

River and lake gauges