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Westwood, California

Community in Lassen County, California

Air quality

The air at Westwood

Index 28, good, led by fine particles. Read at 2 AM from its reporting area, Quincy (CA), 26 miles off.

28Good
  • Fine particles (PM2.5)28Good-

The days ahead

Yesterday measured 17, good.

Smoke, the next 46 hours

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

FriSat

Precipitation

What has fallen at Westwood

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 Westwood, the next 46 hours

Visibility stays 10 miles or more through Sat 11 PM.

FriSat

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

What is measuring near here

The 7 instruments nearest Westwood, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 5.0 miles away.

measured now5 instruments

WestwoodWWDC1

At a river or reservoir gauge/5.5 mi away/6,270 ft/1,155 ft above here

temp, wind, gust, humidity, pressure

Rank924of 4,465

ChesterO05

At an airfield/12.7 mi away/4,534 ft/581 ft below here

temp, wind, gust, visibility, precip, pressure

Rank1,645of 4,465

Eagle LakeS2192

At a soil climate station/26.1 mi away/5,134 ft/19 ft above here

temp, humidity, soil temp, soil moisture

Rank2,513of 4,465

measured daily2 instruments

Westwood 4.9 WSWCA-PM-14

In a volunteer observer's own ground/5.0 mi away/4,629 ft/486 ft below here

precip, snowfall, snow depth

Rank-

ChesterCHEC1

At a cooperative observer's station/12.6 mi away/4,547 ft/568 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Chester, drawn

The nearest airport reporting now, 12.7 mi from Westwood, California. From its report of Oct 16, 2026, 2:35 AM local time: 3 of its 6 sheets.

The sky

A few clouds at 3,500 ft; visibility 10 mi or more.

Section of the sky over Chester, height above the station to scale: a few clouds cloud with its base at 3,500 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT O05FIG. A THE SKY OVER CHESTERSECTION, 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 STATION01,0002,0003,0004,0005,0006,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETFEW 3,500 FTA FEW CLOUDS, 1 TO 2 EIGHTHS OF THE SKYVISIBILITY, MILES: 10 MI OR MORE0510TITLEChester, the skySTATION REPORT · ASOS O05TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-O05-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

42.8 F with a dew point of 21.2 F, 42 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 4,900 ft up; the lowest cloud reported is at 3,500 ft.

Chart of the air at Chester: temperature 42.8 degrees Fahrenheit and dew point 21.2, 42 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 4,900 feet above the station, against the lowest cloud reported at 3,500 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT O05FIG. B THE AIR AT CHESTERTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0006,0007,00010 F20 F30 F40 F50 FSATURATES 4,900 FT ABOVE THE STATION, AT 16.8 FLOWEST CLOUD REPORTED, FEW 3,500 FTTEMPERATURE 42.8 FDEW POINT 21.2 FSPREAD 21.6 FRELATIVE HUMIDITY 42 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 POINTTITLEChester, the airSTATION REPORT · ASOS O05TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-O05-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north (350 degrees) at 5 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Chester, north up: blowing from 350 degrees, the north, at 5 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 O05FIG. C THE WIND AT CHESTERPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 350°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 5 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEChester, the windSTATION REPORT · ASOS O05TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-O05-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Chester, 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 Westwood

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

Near Westwood

River and lake gauges