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Foresta, California

Community in Mariposa County, California

Air quality

The air at Foresta

Index 44, good, led by ozone. Read at 7 PM from its reporting area, Yosemite National Park (CA), 3 miles off.

44Good
  • Fine particles (PM2.5)12Good-
  • Ozone44Good-

The days ahead

Yesterday measured 60, moderate.

Smoke, the next 41 hours

Little smoke near the ground through Sat 11 AM: the index from smoke stays at 6 or under.

ThuFriSat

Precipitation

What has fallen at Foresta

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 Foresta, the next 41 hours

Visibility stays 10 miles or more through Sat 11 AM.

ThuFriSat

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

What is measuring near here

The 6 instruments nearest Foresta, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.6 miles away.

measured now4 instruments

El PortalEPWC1

At a river or reservoir gauge/2.6 mi away/2,203 ft/2,193 ft below here

temp, wind, gust, humidity, pressure

Rank945of 4,465

measured daily2 instruments

Yosemite Park HeadquartersYPQC1

At a cooperative observer's station/9.4 mi away/4,029 ft/367 ft below here

snowfall, snow depth, precip, high, low

Rank-

Mariposa 7.1 ECA-MP-9

In a volunteer observer's own ground/14.2 mi away/3,210 ft/1,186 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at El Portal, drawn

The nearest instrument reporting now, 2.6 mi from Foresta, California. From its report of Oct 15, 2026, 7:17 PM local time: 3 of its 5 sheets.

The air

68.0 F with a dew point of 31.8 F, 26 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 8,200 ft up.

Chart of the air at El Portal: temperature 68.0 degrees Fahrenheit and dew point 31.8, 26 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 8,200 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT EPWC1FIG. B THE AIR AT EL PORTALTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION02,0004,0006,0008,00010,00010 F30 F50 F70 FSATURATES 8,200 FT ABOVE THE STATION, AT 24.4 FTEMPERATURE 68.0 FDEW POINT 31.8 FSPREAD 36.2 FRELATIVE HUMIDITY 26 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 POINTTITLEEl Portal, the airSTATION REPORT · DCP EPWC1TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 5DATE2026-10-16IDSR-EPWC1-1DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at El Portal, north up: calm; beside it the Beaufort scale from calm to hurricane force, force 0, calm, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT EPWC1FIG. C THE WIND AT EL PORTALPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONCALMBEAUFORT FORCELEAST WIND, MPH0CALM0NOW, 0 MPH1LIGHT AIR1GUST, 2 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEEl Portal, the windSTATION REPORT · DCP EPWC1TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 2 of 5DATE2026-10-16IDSR-EPWC1-2DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

The column

At 2,203 ft above sea level, 8 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 27.61 inHg and the temperature at 51.1 F; it reports 68.0 F, 16.9 F warmer than standard.

Section from sea level of where El Portal stands in the atmosphere, height to scale: the station 2,203 feet above sea level with 8 per cent of the air below it; the standard atmosphere's pressure there, 27.61 inches of mercury, and temperature, 51.1 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT EPWC1FIG. D WHERE EL PORTAL STANDS IN THE ATMOSPHERESECTION FROM SEA LEVEL, HEIGHT TO SCALE, THE STATION IN THE STANDARD ATMOSPHEREFT ABOVE SEA LEVEL05,00010,00015,000SEA LEVEL, 29.92 inHg IN THE STANDARD ATMOSPHEREEL PORTAL8 PER CENT OF THE AIR BELOW IT2,203 FT10 PER CENT OF THE AIR BELOW, 2,890 FT20 PER CENT OF THE AIR BELOW, 6,050 FT30 PER CENT OF THE AIR BELOW, 9,540 FT40 PER CENT OF THE AIR BELOW, 13,470 FTSTANDARD PRESSURE HERE27.61 inHgSTANDARD TEMPERATURE HERE51.1 FTEMPERATURE, REPORTED68.0 FTITLEEl Portal, the columnSTATION REPORT · DCP EPWC1TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 3 of 5DATE2026-10-16IDSR-EPWC1-3DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The full report of El Portal, in 5 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 Foresta

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

Near Foresta

River and lake gauges