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Williams, California

City in Colusa County, California

Air quality

The air at Williams

Index 39, good, led by fine particles. Read at 8 PM from its reporting area, Gridley (CA), 24 miles off.

39Good
  • Fine particles (PM2.5)39Good-

The days ahead

Good each day through Fri Oct 16, led by fine particles. Yesterday measured 43, good.

Smoke, the next 46 hours

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

ThuFriSat

Precipitation

What has fallen at Williams

None in the last 3 days, to Thu 7 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 Williams, the next 46 hours

Visibility stays 10 miles or more through Sat 5 PM.

ThuFriSat

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

What is measuring near here

The 5 instruments nearest Williams, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 7.1 miles away.

measured now3 instruments

LeesvilleLVEC1

At a river or reservoir gauge/15.4 mi away/1,440 ft/1,353 ft above here

temp, wind, gust, humidity, pressure

Rank946of 4,465

Marysville/Yuba CountyMYV

At an airfield/31.4 mi away/56 ft/31 ft below here

temp, wind, gust, visibility, precip, pressure

Rank-

measured daily2 instruments

Colusa 2 SSWCSAC1

At a cooperative observer's station/7.1 mi away/46 ft/41 ft below here

snowfall, snow depth, precip, high, low

Rank-

Meridian 0.7 WCA-CL-3

In a volunteer observer's own ground/12.0 mi away/51 ft/36 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at Leesville, drawn

The nearest instrument reporting now, 15.4 mi from Williams, California. From its report of Oct 15, 2026, 7:58 PM local time: 3 of its 5 sheets.

The air

72.5 F with a dew point of 30.3 F, 21 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 9,500 ft up.

Chart of the air at Leesville: temperature 72.5 degrees Fahrenheit and dew point 30.3, 21 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 9,500 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT LVEC1FIG. B THE AIR AT LEESVILLETHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION02,0004,0006,0008,00010,00012,00010 F30 F50 F70 FSATURATES 9,500 FT ABOVE THE STATION, AT 21.8 FTEMPERATURE 72.5 FDEW POINT 30.3 FSPREAD 42.2 FRELATIVE HUMIDITY 21 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 POINTTITLELeesville, the airSTATION REPORT · DCP LVEC1TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 5DATE2026-10-16IDSR-LVEC1-1DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northwest (328 degrees) at 1 mph: force 1, a light air on the Beaufort scale.

Plan of the wind at Leesville, north up: blowing from 328 degrees, the north northwest, at 1 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 1, light air, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT LVEC1FIG. C THE WIND AT LEESVILLEPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 328°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 1 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLELeesville, the windSTATION REPORT · DCP LVEC1TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 2 of 5DATE2026-10-16IDSR-LVEC1-2DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

The column

At 1,440 ft above sea level, 5 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 28.40 inHg and the temperature at 53.9 F; it reports 72.5 F, 18.6 F warmer than standard.

Section from sea level of where Leesville stands in the atmosphere, height to scale: the station 1,440 feet above sea level with 5 per cent of the air below it; the standard atmosphere's pressure there, 28.40 inches of mercury, and temperature, 53.9 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT LVEC1FIG. D WHERE LEESVILLE 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 ATMOSPHERELEESVILLE5 PER CENT OF THE AIR BELOW IT1,440 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 HERE28.40 inHgSTANDARD TEMPERATURE HERE53.9 FTEMPERATURE, REPORTED72.5 FTITLELeesville, the columnSTATION REPORT · DCP LVEC1TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 3 of 5DATE2026-10-16IDSR-LVEC1-3DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The full report of Leesville, 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 Williams

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

Near Williams

River and lake gauges