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Penryn, California

Community in Placer County, California

Air quality

The air at Penryn

Index 39, good, led by ozone. Read at 3 AM from its reporting area, Auburn (CA), 6 miles off.

39Good
  • Fine particles (PM2.5)28Good11.5 mi
  • Ozone39Good41 ppb11.5 mi
  • Nitrogen dioxide1Good1 ppb11.5 mi

The days ahead

Highest 74, moderate, today, led by ozone. Yesterday measured 74, moderate.

Smoke, the next 44 hours

Little smoke near the ground through Sun 11 PM: the index from smoke stays at 11 or under.

SatSun

Precipitation

What has fallen at Penryn

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 Penryn, the next 44 hours

Visibility stays 10 miles or more through Sun 11 PM.

SatSun

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

What is measuring near here

The 6 instruments nearest Penryn, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.3 miles away.

measured now4 instruments

LincolnLICC1

At a river or reservoir gauge/5.8 mi away/197 ft/424 ft below here

temp, wind, gust, humidity, pressure

Rank3,776of 4,461

measured daily2 instruments

Newcastle 0.4 SSWCA-PC-33

In a volunteer observer's own ground/2.3 mi away/824 ft/203 ft above here

precip, snowfall, snow depth

Rank-

AuburnAUBC1

At a cooperative observer's station/6.2 mi away/1,312 ft/691 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Aurburn Municipal Airport, drawn

The nearest airport reporting now, 8.8 mi from Penryn, California. From its report of Oct 17, 2026, 4:15 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 Aurburn Municipal Airport, 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 AUNFIG. A THE SKY OVER AURBURN MUNICIPAL AIRPORTSECTION, 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 MORE0510TITLEAurburn Municipal Airport, the skySTATION REPORT · ASOS AUNTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-17IDSR-AUN-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

66.2 F with a dew point of 30.2 F, 26 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 8,100 ft up.

Chart of the air at Aurburn Municipal Airport: temperature 66.2 degrees Fahrenheit and dew point 30.2, 26 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 8,100 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT AUNFIG. B THE AIR AT AURBURN MUNICIPAL AIRPORTTHE 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 8,100 FT ABOVE THE STATION, AT 22.9 FTEMPERATURE 66.2 FDEW POINT 30.2 FSPREAD 36.0 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 POINTTITLEAurburn Municipal Airport, the airSTATION REPORT · ASOS AUNTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-17IDSR-AUN-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the east (80 degrees) at 9 mph: force 3, a gentle breeze on the Beaufort scale.

Plan of the wind at Aurburn Municipal Airport, north up: blowing from 80 degrees, the east, 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 AUNFIG. C THE WIND AT AURBURN MUNICIPAL AIRPORTPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 80°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 9 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEAurburn Municipal Airport, the windSTATION REPORT · ASOS AUNTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-17IDSR-AUN-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Aurburn Municipal Airport, 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 Penryn

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

Near Penryn

River and lake gauges