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San Jacinto, California

City in Riverside County, California

Air quality

The air at San Jacinto

Index 38, good, led by ozone. Read at 2 AM from its reporting area, Banning (CA), 11 miles off.

38Good
  • Fine particles (PM2.5)12Good15.5 mi
  • Ozone38Good34 ppb15.5 mi
  • Coarse particles (PM10)-15.5 mi
  • Nitrogen dioxide0Good0.8 ppb22.2 mi

The days ahead

Good each day through Today, led by ozone. Yesterday measured 22, good.

Smoke, the next 46 hours

Smoke near the ground peaks at index 55, moderate, Sat 11 PM.

FriSat

Precipitation

What has fallen at San Jacinto

None in the last 3 days, to Fri 1 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 San Jacinto, the next 46 hours

Visibility stays 10 miles or more through Sat 11 PM.

FriSat

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

What is measuring near here

The 7 instruments nearest San Jacinto, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.6 miles away.

measured now5 instruments

HemetHMT

At an airfield/4.7 mi away/1,515 ft/30 ft below here

temp, wind, gust, visibility, precip, pressure

Rank3,335of 4,465

measured daily2 instruments

San Jacinto RsSJRC1

At a cooperative observer's station/0.6 mi away/1,568 ft/23 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Hemet, drawn

The nearest airport reporting now, 4.7 mi from San Jacinto, California. From its report of Oct 16, 2026, 2:35 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 Hemet, 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 HMTFIG. A THE SKY OVER HEMETSECTION, 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 MORE0510TITLEHemet, the skySTATION REPORT · ASOS HMTTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-HMT-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

71.2 F with a dew point of 39.2 F, 31 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 7,300 ft up.

Chart of the air at Hemet: temperature 71.2 degrees Fahrenheit and dew point 39.2, 31 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 7,300 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HMTFIG. B THE AIR AT HEMETTHE 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 7,300 FT ABOVE THE STATION, AT 32.5 FTEMPERATURE 71.2 FDEW POINT 39.2 FSPREAD 32.0 FRELATIVE HUMIDITY 31 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 POINTTITLEHemet, the airSTATION REPORT · ASOS HMTTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-HMT-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the east southeast (120 degrees) at 7 mph: force 2, a light breeze on the Beaufort scale. The strongest gust today was 38 mph.

Plan of the wind at Hemet, north up: blowing from 120 degrees, the east southeast, at 7 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 HMTFIG. C THE WIND AT HEMETPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 120°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 7 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEHemet, the windSTATION REPORT · ASOS HMTTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-HMT-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Hemet, 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 San Jacinto

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

Near San Jacinto

River and lake gauges