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Hilmar-Irwin, California

Community in Merced County, California

Air quality

The air at Hilmar-Irwin

Index 90, moderate, led by coarse particles. Read at 11 PM from its reporting area, Modesto (CA), 19 miles off.

90Moderate
  • Fine particles (PM2.5)75Moderate-
  • Ozone11Good-
  • Coarse particles (PM10)90Moderate-

The days ahead

Moderate each day through Today, led by ozone. Yesterday measured 64, moderate.

Smoke, the next 42 hours

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

FriSat

Precipitation

What has fallen at Hilmar-Irwin

None in the last 3 days, to Thu 11 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 Hilmar-Irwin, the next 42 hours

Visibility stays 10 miles or more through Sat 5 PM.

FriSat

On the radar over Hilmar-Irwin, CaliforniaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 7 instruments nearest Hilmar-Irwin, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 4.1 miles away.

measured now5 instruments

measured daily2 instruments

Turlock No2TURC1

At a cooperative observer's station/6.4 mi away/91 ft/1 ft below here

snowfall, snow depth, precip, high, low

Rank-

Livingston 0.2 NNWCA-ME-2

In a volunteer observer's own ground/7.2 mi away/131 ft/39 ft above here

precip, snowfall, snow depth

Rank-

Station report

The weather at Gustine 7ESE, drawn

The nearest instrument reporting now, 12.0 mi from Hilmar-Irwin, California. From its report of Oct 15, 2026, 11:55 PM local time: 3 of its 4 sheets.

The wind

At 1 mph: force 1, a light air on the Beaufort scale. The strongest gust today was 9 mph.

Plan of the wind at Gustine 7ESE, north up: at 1 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 1, light air, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GSTC1FIG. C THE WIND AT GUSTINE 7ESEPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONDIRECTION NOT REPORTEDBEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 1 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEGustine 7ESE, the windSTATION REPORT · DCP GSTC1TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 1 of 4DATE2026-10-16IDSR-GSTC1-1DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

The column

At 89 ft above sea level, 0 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.83 inHg and the temperature at 58.7 F; it reports 52.6 F, 6.1 F colder than standard.

Section from sea level of where Gustine 7ESE stands in the atmosphere, height to scale: the station 89 feet above sea level with 0 per cent of the air below it; the standard atmosphere's pressure there, 29.83 inches of mercury, and temperature, 58.7 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GSTC1FIG. D WHERE GUSTINE 7ESE 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 ATMOSPHEREGUSTINE 7ESE0 PER CENT OF THE AIR BELOW IT89 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 HERE29.83 inHgSTANDARD TEMPERATURE HERE58.7 FTEMPERATURE, REPORTED52.6 FTITLEGustine 7ESE, the columnSTATION REPORT · DCP GSTC1TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 4DATE2026-10-16IDSR-GSTC1-2DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The sun

On Oct 16 the noon sun stands 44 degrees above the horizon at 37.24 N, and the day is 11 h 04 min long. Level ground there takes 69 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Gustine 7ESE, angles true: on Oct 16 it stands 44 degrees above the horizon, against 76 at the June solstice, 53 at the equinoxes and 29 at the December solstice; the day is 11 h 04 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GSTC1FIG. E THE SUN AT GUSTINE 7ESEELEVATION LOOKING WEST, SOUTH TO THE LEFT: THE NOON SUN ON THE DAY OF THE REPORT, AND AT THE SOLSTICES AND EQUINOXES; ANGLES TRUETHE STATIONJUNE SOLSTICE 76°EQUINOXES 53°DECEMBER SOLSTICE 29°OCT 16, 44°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 11 H 04 MINLEVEL GROUND TAKES 69 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 37.24 N; THE SUN'S DECLINATION -9.1°TITLEGustine 7ESE, the sunSTATION REPORT · DCP GSTC1TYPEELEVATIONSCALEANGLES TRUEREVAS REPORTED SHEET 3 of 4DATE2026-10-16IDSR-GSTC1-3DRAWN AS linework on paperSOURCES FB-ENG-007

The full report of Gustine 7ESE, in 4 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 Hilmar-Irwin

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

Near Hilmar-Irwin

River and lake gauges