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March ARB, California

Community in Riverside County, California

Air quality

The air at March ARB

Index 34, good, led by ozone. Read at 4 AM from its reporting area, Metro Riverside CO (CA), 12 miles off.

34Good
  • Fine particles (PM2.5)32Good11.7 mi
  • Ozone34Good31 ppb11.7 mi
  • Coarse particles (PM10)19Good11.7 mi
  • Nitrogen dioxide8Good9.8 ppb11.7 mi
  • Sulfur dioxide0Good0.1 ppb11.7 mi
  • Carbon monoxide-0.1 ppm11.7 mi

The days ahead

Good each day through Today, led by ozone. Yesterday measured 42, good.

Smoke, the next 44 hours

Smoke near the ground peaks at index 96, moderate, Sun 11 PM.

SatSun

Precipitation

What has fallen at March ARB

None in the last 3 days, to Sat 3 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 March ARB, the next 44 hours

Visibility stays 10 miles or more through Sun 11 PM.

SatSun

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

What is measuring near here

The 7 instruments nearest March ARB, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.3 miles away.

measured now5 instruments

Clark RAWSCLHC1

A remote fire weather station/3.2 mi away/1,726 ft/203 ft above here

temp, wind, gust, humidity, pressure

Rank453of 4,461

I-15 : Jurupa AvenueCF174

Beside a road/19.9 mi away/908 ft/615 ft below here

temp, pavement temp, wind, visibility, precip

Rank-

measured daily2 instruments

Riverside 5.8 ECA-RV-38

In a volunteer observer's own ground/3.8 mi away/1,536 ft/13 ft above here

precip, snowfall, snow depth

Rank-

Riverside Fire STN #3REVC1

At a cooperative observer's station/8.5 mi away/850 ft/673 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at March AFB/Riverside, drawn

The nearest airport reporting now, 0.3 mi from March ARB, California. From its report of Oct 17, 2026, 3:55 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 March AFB/Riverside, 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 RIVFIG. A THE SKY OVER MARCH AFB/RIVERSIDESECTION, 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 MORE0510TITLEMarch AFB/Riverside, the skySTATION REPORT · ASOS RIVTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-17IDSR-RIV-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

78.8 F with a dew point of 33.0 F, 19 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 10,300 ft up.

Chart of the air at March AFB/Riverside: temperature 78.8 degrees Fahrenheit and dew point 33.0, 19 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 10,300 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT RIVFIG. B THE AIR AT MARCH AFB/RIVERSIDETHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION02,0004,0006,0008,00010,00012,00010 F30 F50 F70 F90 FSATURATES 10,300 FT ABOVE THE STATION, AT 23.7 FTEMPERATURE 78.8 FDEW POINT 33.0 FSPREAD 45.8 FRELATIVE HUMIDITY 19 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 POINTTITLEMarch AFB/Riverside, the airSTATION REPORT · ASOS RIVTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-17IDSR-RIV-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the east northeast (70 degrees) at 15 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 25 mph.

Plan of the wind at March AFB/Riverside, north up: blowing from 70 degrees, the east northeast, at 15 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT RIVFIG. C THE WIND AT MARCH AFB/RIVERSIDEPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 70°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 15 MPH5FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEMarch AFB/Riverside, the windSTATION REPORT · ASOS RIVTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-17IDSR-RIV-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of March AFB/Riverside, 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 March ARB

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

Near March ARB

River and lake gauges