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Junction City, Oregon

City in Lane County, Oregon

Air quality

The air at Junction City

Index 47, good, led by fine particles. Read at 11 PM from its reporting area, Eugene and Springfield (OR), 15 miles off.

47Good
  • Fine particles (PM2.5)47Good11.1 mi

The days ahead

Good each day through Today, led by fine particles. Yesterday measured 29, good.

Smoke, the next 42 hours

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

FriSat

Precipitation

What has fallen at Junction City

None in the last 3 days, to Thu 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 Junction City, the next 42 hours

Visibility stays 6 miles or more through Sat 5 PM, lowest 7 miles Sat 10 AM.

FriSat

On the radar over Junction City, OregonReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 7 instruments nearest Junction City, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 4.0 miles away.

measured now5 instruments

measured daily2 instruments

Fern Ridge-VenetaFRIO3

At a cooperative observer's station/14.1 mi away/384 ft/58 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Eugene/Mahlon Sweet, drawn

The nearest airport reporting now, 6.5 mi from Junction City, Oregon. From its report of Oct 15, 2026, 11:54 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 Eugene/Mahlon Sweet, 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 EUGFIG. A THE SKY OVER EUGENE/MAHLON SWEETSECTION, 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 MORE0510TITLEEugene/Mahlon Sweet, the skySTATION REPORT · ASOS EUGTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-EUG-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

47.0 F with a dew point of 45.0 F, 93 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 500 ft up.

Chart of the air at Eugene/Mahlon Sweet: temperature 47.0 degrees Fahrenheit and dew point 45.0, 93 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 500 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT EUGFIG. B THE AIR AT EUGENE/MAHLON SWEETTHE 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 FSATURATES 500 FT ABOVE THE STATION, AT 44.5 FTEMPERATURE AND DEW POINT 47.0 F, 45.0 FRELATIVE HUMIDITY 93 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 POINTTITLEEugene/Mahlon Sweet, the airSTATION REPORT · ASOS EUGTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-EUG-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Eugene/Mahlon Sweet, 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 EUGFIG. C THE WIND AT EUGENE/MAHLON SWEETPLAN, 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 FORCE73TITLEEugene/Mahlon Sweet, the windSTATION REPORT · ASOS EUGTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-EUG-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Eugene/Mahlon Sweet, 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 Junction City

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

Near Junction City

River and lake gauges