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Dunsmuir, California

City in Siskiyou County, California

Air quality

The air at Dunsmuir

Index 12, good, led by fine particles. Read at 9 AM from its reporting area, Yreka (CA), 40 miles off.

12Good
  • Fine particles (PM2.5)12Good-
  • Ozone11Good-

The days ahead

Yesterday measured 34, good.

Smoke, the next 45 hours

Little smoke near the ground through Sun 5 AM: the index from smoke stays at 17 or under.

FriSatSun

Precipitation

What has fallen at Dunsmuir

None in the last 3 days, to Fri 8 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 Dunsmuir, the next 45 hours

Visibility stays 10 miles or more through Sun 5 AM.

FriSatSun

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

What is measuring near here

The 6 instruments nearest Dunsmuir, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.2 miles away.

measured now4 instruments

GirardGRDC1

At a river or reservoir gauge/5.5 mi away/3,809 ft/1,448 ft above here

temp, wind, gust, humidity, pressure

Rank3,713of 4,465

measured daily2 instruments

Dunsmuir 1.7 SCA-SK-22

In a volunteer observer's own ground/0.2 mi away/2,349 ft/12 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at Mount Shasta City, drawn

The nearest airport reporting now, 7.4 mi from Dunsmuir, California. From its report of Oct 16, 2026, 8:56 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 Mount Shasta City, 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 MHSFIG. A THE SKY OVER MOUNT SHASTA CITYSECTION, 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 MORE0510TITLEMount Shasta City, the skySTATION REPORT · ASOS MHSTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-MHS-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

48.0 F with a dew point of 27.0 F, 44 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 4,700 ft up.

Chart of the air at Mount Shasta City: temperature 48.0 degrees Fahrenheit and dew point 27.0, 44 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 4,700 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MHSFIG. B THE AIR AT MOUNT SHASTA CITYTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0006,00010 F20 F30 F40 F50 F60 FSATURATES 4,700 FT ABOVE THE STATION, AT 22.7 FTEMPERATURE 48.0 FDEW POINT 27.0 FSPREAD 21.0 FRELATIVE HUMIDITY 44 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 POINTTITLEMount Shasta City, the airSTATION REPORT · ASOS MHSTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-MHS-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Mount Shasta City, north up: calm; beside it the Beaufort scale from calm to hurricane force, force 0, calm, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MHSFIG. C THE WIND AT MOUNT SHASTA CITYPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONCALMBEAUFORT FORCELEAST WIND, MPH0CALM0NOW, 0 MPH1LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEMount Shasta City, the windSTATION REPORT · ASOS MHSTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-MHS-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Mount Shasta City, 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 Dunsmuir

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

Near Dunsmuir

River and lake gauges