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Mariposa, California

Community in Mariposa County, California

Air quality

The air at Mariposa

Index 44, good, led by ozone. Read at 11 AM from its reporting area, Yosemite National Park (CA), 21 miles off.

44Good
  • Fine particles (PM2.5)23Good-
  • Ozone44Good-

The days ahead

Yesterday measured 61, moderate.

Smoke, the next 43 hours

Little smoke near the ground through Sun 5 AM: the index from smoke stays at 6 or under.

FriSatSun

Precipitation

What has fallen at Mariposa

None in the last 3 days, to Fri 10 AM. 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 Mariposa, the next 43 hours

Visibility stays 10 miles or more through Sun 5 AM.

FriSatSun

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

What is measuring near here

The 7 instruments nearest Mariposa, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.5 miles away.

measured now5 instruments

MercedMCE

At an airfield/33.1 mi away/149 ft/2,001 ft below here

temp, wind, gust, visibility, precip, pressure

Rank47of 4,465

measured daily2 instruments

Mariposa 3.7 NNWCA-MP-1

In a volunteer observer's own ground/3.1 mi away/2,942 ft/792 ft above here

precip, snowfall, snow depth

Rank-

Exchequer DamEXQC1

At a dam/17.1 mi away/827 ft/1,323 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Merced, drawn

The nearest airport reporting now, 33.1 mi from Mariposa, California. From its report of Oct 16, 2026, 10:53 AM 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 Merced, 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 MCEFIG. A THE SKY OVER MERCEDSECTION, 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 MORE0510TITLEMerced, the skySTATION REPORT · ASOS MCETYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-MCE-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

74.0 F with a dew point of 41.0 F, 30 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 7,500 ft up.

Chart of the air at Merced: temperature 74.0 degrees Fahrenheit and dew point 41.0, 30 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 7,500 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MCEFIG. B THE AIR AT MERCEDTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION02,0004,0006,0008,00010,00020 F30 F40 F50 F60 F70 F80 FSATURATES 7,500 FT ABOVE THE STATION, AT 34.0 FTEMPERATURE 74.0 FDEW POINT 41.0 FSPREAD 33.0 FRELATIVE HUMIDITY 30 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 POINTTITLEMerced, the airSTATION REPORT · ASOS MCETYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-MCE-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the southeast (130 degrees) at 9 mph: force 3, a gentle breeze on the Beaufort scale.

Plan of the wind at Merced, north up: blowing from 130 degrees, the southeast, at 9 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MCEFIG. C THE WIND AT MERCEDPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 130°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 9 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEMerced, the windSTATION REPORT · ASOS MCETYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-MCE-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Merced, 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 Mariposa

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

Near Mariposa

River and lake gauges