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Pike, California

Community in Sierra County, California

Air quality

The air at Pike

Index 51, moderate, led by ozone. Read at 10 PM from its reporting area, Western Nevada County (CA), 15 miles off.

51Moderate
  • Fine particles (PM2.5)-22.9 mi
  • Ozone51Moderate44 ppb22.9 mi

The days ahead

Yesterday measured 40, good.

Smoke, the next 43 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 Pike

None in the last 3 days, to Fri 10 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 Pike, the next 43 hours

Visibility stays 10 miles or more through Sun 5 PM.

SatSun

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

What is measuring near here

The 6 instruments nearest Pike, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.4 miles away.

measured now4 instruments

measured daily2 instruments

Nevada City 6.0 NNECA-NV-60

In a volunteer observer's own ground/6.3 mi away/2,695 ft/589 ft below here

precip, snowfall, snow depth

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Station report

The weather at Grass Valley, drawn

The nearest airport reporting now, 14.3 mi from Pike, California. From its report of Oct 16, 2026, 11:15 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 Grass Valley, 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 GOOFIG. A THE SKY OVER GRASS VALLEYSECTION, 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 MORE0510TITLEGrass Valley, the skySTATION REPORT · ASOS GOOTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-17IDSR-GOO-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

64.4 F with a dew point of 26.6 F, 24 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 8,500 ft up.

Chart of the air at Grass Valley: temperature 64.4 degrees Fahrenheit and dew point 26.6, 24 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 8,500 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GOOFIG. B THE AIR AT GRASS VALLEYTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION02,0004,0006,0008,00010,00010 F30 F50 F70 FSATURATES 8,500 FT ABOVE THE STATION, AT 19.0 FTEMPERATURE 64.4 FDEW POINT 26.6 FSPREAD 37.8 FRELATIVE HUMIDITY 24 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 POINTTITLEGrass Valley, the airSTATION REPORT · ASOS GOOTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-17IDSR-GOO-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Grass Valley, 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 GOOFIG. C THE WIND AT GRASS VALLEYPLAN, 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 FORCE73TITLEGrass Valley, the windSTATION REPORT · ASOS GOOTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-17IDSR-GOO-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Grass Valley, 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 Pike

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

Near Pike

River and lake gauges