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Walnut Grove, California

Community in Sacramento County, California

Air quality

The air at Walnut Grove

Index 57, moderate, led by coarse particles. Read at 8 PM from its reporting area, Elk Grove (CA), 14 miles off.

57Moderate
  • Fine particles (PM2.5)42Good6.5 mi
  • Ozone47Good52 ppb6.5 mi
  • Coarse particles (PM10)57Moderate6.5 mi
  • Nitrogen dioxide2Good2 ppb6.5 mi
  • Carbon monoxide-0.4 ppm23.7 mi

The days ahead

Highest 58, moderate, today, led by ozone. Yesterday measured 40, good.

Smoke, the next 46 hours

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

ThuFriSat

Precipitation

What has fallen at Walnut Grove

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 Walnut Grove, the next 46 hours

Visibility stays 10 miles or more through Sat 5 PM.

ThuFriSat

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

What is measuring near here

The 6 instruments nearest Walnut Grove, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 6.0 miles away.

measured now4 instruments

measured daily2 instruments

Elk Grove 7.5 SWCA-SA-42

In a volunteer observer's own ground/6.0 mi away/11 ft/7 ft above here

precip, snowfall, snow depth

Rank-

Acampo 5NEACPC1

At a cooperative observer's station/17.2 mi away/83 ft/79 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Sacramento/Executiv, drawn

The nearest airport reporting now, 18.0 mi from Walnut Grove, California. From its report of Oct 15, 2026, 7:53 PM 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 Sacramento/Executiv, 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 SACFIG. A THE SKY OVER SACRAMENTO/EXECUTIVSECTION, 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 MORE0510TITLESacramento/Executiv, the skySTATION REPORT · ASOS SACTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-SAC-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

69.0 F with a dew point of 46.0 F, 44 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 5,300 ft up.

Chart of the air at Sacramento/Executiv: temperature 69.0 degrees Fahrenheit and dew point 46.0, 44 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 5,300 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SACFIG. B THE AIR AT SACRAMENTO/EXECUTIVTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0006,0007,00030 F40 F50 F60 F70 F80 FSATURATES 5,300 FT ABOVE THE STATION, AT 41.0 FTEMPERATURE 69.0 FDEW POINT 46.0 FSPREAD 23.0 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 POINTTITLESacramento/Executiv, the airSTATION REPORT · ASOS SACTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-SAC-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Sacramento/Executiv, 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 SACFIG. C THE WIND AT SACRAMENTO/EXECUTIVPLAN, 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 FORCE73TITLESacramento/Executiv, the windSTATION REPORT · ASOS SACTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-SAC-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Sacramento/Executiv, 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 Walnut Grove

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

Near Walnut Grove

River and lake gauges