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Fall River Mills, California

Community in Shasta County, California

Air quality

The air at Fall River Mills

Index 32, good, led by ozone. Read at 9 PM from its reporting area, Lassen Volcanic National Park (CA), 33 miles off.

32Good
  • Ozone32Good-

Smoke, the next 45 hours

Little smoke near the ground through Sun 5 PM: the index from smoke stays at 6 or under.

SatSun

Precipitation

What has fallen at Fall River Mills

None in the last 3 days, to Fri 8 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 Fall River Mills, the next 45 hours

Visibility stays 10 miles or more through Sun 5 PM.

SatSun

On the radar over Fall River Mills, CaliforniaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 5 instruments nearest Fall River Mills, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.3 miles away.

measured now3 instruments

Ash ValleyS2214

At a soil climate station/39.4 mi away/5,097 ft/1,760 ft above here

temp, humidity, soil temp, soil moisture

Rank2,477of 4,461

measured daily2 instruments

Fall River MillsFMLC1

At a cooperative observer's station/0.3 mi away/3,278 ft/59 ft below here

snowfall, snow depth, precip, high, low

Rank-

Fall River Mills 6.1 NWCA-SH-84

In a volunteer observer's own ground/5.9 mi away/3,324 ft/13 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at Hatchet Mtn, drawn

The nearest instrument reporting now, 19.8 mi from Fall River Mills, California. From its report of Oct 16, 2026, 9:00 PM local time: 3 of its 5 sheets.

The air

52.5 F with a dew point of 20.7 F, 28 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 7,100 ft up.

Chart of the air at Hatchet Mtn: temperature 52.5 degrees Fahrenheit and dew point 20.7, 28 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 7,100 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CD010FIG. B THE AIR AT HATCHET MTNTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION02,0004,0006,0008,0000 F10 F20 F30 F40 F50 F60 FSATURATES 7,100 FT ABOVE THE STATION, AT 14.3 FTEMPERATURE 52.5 FDEW POINT 20.7 FSPREAD 31.9 FRELATIVE HUMIDITY 28 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 POINTTITLEHatchet Mtn, the airSTATION REPORT · RWIS CD010TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 5DATE2026-10-17IDSR-CD010-1DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west (278 degrees) at 2 mph, gusting 2 mph: force 1, a light air on the Beaufort scale. The strongest gust today was 10 mph.

Plan of the wind at Hatchet Mtn, north up: blowing from 278 degrees, the west, at 2 miles an hour, gusting 2; beside it the Beaufort scale from calm to hurricane force, force 1, light air, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CD010FIG. C THE WIND AT HATCHET MTNPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 278°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 2 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEHatchet Mtn, the windSTATION REPORT · RWIS CD010TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 2 of 5DATE2026-10-17IDSR-CD010-2DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

The column

At 4,373 ft above sea level, 15 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 25.49 inHg and the temperature at 43.4 F; it reports 52.5 F, 9.1 F warmer than standard.

Section from sea level of where Hatchet Mtn stands in the atmosphere, height to scale: the station 4,373 feet above sea level with 15 per cent of the air below it; the standard atmosphere's pressure there, 25.49 inches of mercury, and temperature, 43.4 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CD010FIG. D WHERE HATCHET MTN STANDS IN THE ATMOSPHERESECTION FROM SEA LEVEL, HEIGHT TO SCALE, THE STATION IN THE STANDARD ATMOSPHEREFT ABOVE SEA LEVEL05,00010,00015,000SEA LEVEL, 29.92 inHg IN THE STANDARD ATMOSPHEREHATCHET MTN15 PER CENT OF THE AIR BELOW IT4,373 FT10 PER CENT OF THE AIR BELOW, 2,890 FT20 PER CENT OF THE AIR BELOW, 6,050 FT30 PER CENT OF THE AIR BELOW, 9,540 FT40 PER CENT OF THE AIR BELOW, 13,470 FTSTANDARD PRESSURE HERE25.49 inHgSTANDARD TEMPERATURE HERE43.4 FTEMPERATURE, REPORTED52.5 FTITLEHatchet Mtn, the columnSTATION REPORT · RWIS CD010TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 3 of 5DATE2026-10-17IDSR-CD010-3DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The full report of Hatchet Mtn, in 5 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 Fall River Mills

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

Near Fall River Mills

River and lake gauges