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Four Corners, Oregon

Community in Marion County, Oregon

Air quality

The air at Four Corners

Index 55, moderate, led by fine particles. Read at 12 AM from its reporting area, Salem (OR), 2 miles off.

55Moderate
  • Fine particles (PM2.5)55Moderate-

The days ahead

Yesterday measured 29, good.

Smoke, the next 42 hours

Little smoke near the ground through Sun 5 PM: the index from smoke stays at 11 or under.

SatSun

Precipitation

What has fallen at Four Corners

None in the last 3 days, to Fri 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 Four Corners, the next 42 hours

Visibility stays 7 miles or more through Sun 5 PM, lowest 8 miles Sat 8 AM.

SatSun

On the radar over Four Corners, OregonReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 7 instruments nearest Four Corners, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.8 miles away.

measured now5 instruments

Stayton RAWSSYNO3

A remote fire weather station/12.0 mi away/443 ft/219 ft above here

temp, wind, gust, humidity, pressure

Rank1of 1,639

measured daily2 instruments

Salem 1.9 ENEOR-MN-78

In a volunteer observer's own ground/0.8 mi away/221 ft/3 ft below here

precip, snowfall, snow depth

Rank-

SilvertonSVTO3

At a cooperative observer's station/11.1 mi away/335 ft/111 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Salem/Mcnary, drawn

The nearest airport reporting now, 1.9 mi from Four Corners, Oregon. From its report of Oct 16, 2026, 11:56 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 Salem/Mcnary, 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 SLEFIG. A THE SKY OVER SALEM/MCNARYSECTION, 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 MORE0510TITLESalem/Mcnary, the skySTATION REPORT · ASOS SLETYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-17IDSR-SLE-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

55.0 F with a dew point of 45.0 F, 69 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,300 ft up.

Chart of the air at Salem/Mcnary: temperature 55.0 degrees Fahrenheit and dew point 45.0, 69 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 2,300 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SLEFIG. B THE AIR AT SALEM/MCNARYTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00030 F40 F50 F60 F70 FSATURATES 2,300 FT ABOVE THE STATION, AT 42.8 FTEMPERATURE 55.0 FDEW POINT 45.0 FSPREAD 10.0 FRELATIVE HUMIDITY 69 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 POINTTITLESalem/Mcnary, the airSTATION REPORT · ASOS SLETYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-17IDSR-SLE-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the south (180 degrees) at 5 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Salem/Mcnary, north up: blowing from 180 degrees, the south, at 5 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 2, light breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SLEFIG. C THE WIND AT SALEM/MCNARYPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 180°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 5 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLESalem/Mcnary, the windSTATION REPORT · ASOS SLETYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-17IDSR-SLE-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

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Snow on the ground

Elsewhere in Oregon

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

Near Four Corners

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

Near Four Corners

River and lake gauges