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Fort Jones, California

City in Siskiyou County, California

Air quality

The air at Fort Jones

Index 32, good, led by fine particles. Read at 11 PM from its reporting area, Yreka (CA), 13 miles off.

32Good
  • Fine particles (PM2.5)32Good-
  • Ozone19Good-

The days ahead

Yesterday measured 32, good.

Smoke, the next 42 hours

Little smoke near the ground through Sat 5 PM: the index from smoke stays at 50 or under.

FriSat

Precipitation

What has fallen at Fort Jones

None in the last 3 days, to Thu 11 PM. 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 Fort Jones, the next 42 hours

Visibility stays 10 miles or more through Sat 5 PM.

FriSat

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

What is measuring near here

The 5 instruments nearest Fort Jones, 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 now3 instruments

Quartz HillQTZC1

At a river or reservoir gauge/4.7 mi away/3,963 ft/1,228 ft above here

temp, wind, gust, humidity, pressure

Rank734of 4,465

measured daily2 instruments

Fort Jones RsFOJC1

At a cooperative observer's station/0.6 mi away/2,736 ft/1 ft above here

snowfall, snow depth, precip, high, low

Rank-

Etna 3.7 NNWCA-SK-31

In a volunteer observer's own ground/7.5 mi away/2,868 ft/133 ft above here

precip, snowfall, snow depth

Rank-

Station report

The weather at Montague/Siskiyou, drawn

The nearest airport reporting now, 22.5 mi from Fort Jones, California. From its report of Oct 15, 2026, 11:53 PM local time: 3 of its 6 sheets.

The sky

No cloud below 12,000 ft; visibility 5 mi.

Section of the sky over Montague/Siskiyou, height above the station to scale: no cloud detected below 12,000 feet, the reach of its ceilometer, and visibility of 5 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SIYFIG. A THE SKY OVER MONTAGUE/SISKIYOUSECTION, 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: 5 MI0510TITLEMontague/Siskiyou, the skySTATION REPORT · ASOS SIYTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-SIY-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

44.0 F with a dew point of 26.0 F, 49 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 4,100 ft up.

Chart of the air at Montague/Siskiyou: temperature 44.0 degrees Fahrenheit and dew point 26.0, 49 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 4,100 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SIYFIG. B THE AIR AT MONTAGUE/SISKIYOUTHE 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 FSATURATES 4,100 FT ABOVE THE STATION, AT 22.3 FTEMPERATURE 44.0 FDEW POINT 26.0 FSPREAD 18.0 FRELATIVE HUMIDITY 49 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 POINTTITLEMontague/Siskiyou, the airSTATION REPORT · ASOS SIYTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-SIY-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northeast (30 degrees) at 8 mph: force 3, a gentle breeze on the Beaufort scale.

Plan of the wind at Montague/Siskiyou, north up: blowing from 30 degrees, the north northeast, at 8 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 SIYFIG. C THE WIND AT MONTAGUE/SISKIYOUPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 30°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 8 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEMontague/Siskiyou, the windSTATION REPORT · ASOS SIYTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-SIY-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Montague/Siskiyou, in 6 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Fort Jones Rs (FOJC1), 0.6 miles from here, read 15 Oct, 08:00. measured daily

Elsewhere in California

33 places, each with its own forecast and its own instruments.

Near Fort Jones

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

Near Fort Jones

River and lake gauges