Storm Station
West Haven-Sylvan, Oregon
57°
Partly cloudy· Feels like 57°·Light air 3 mph N
Mostly cloudy. Low around 48, with temperatures rising to around 50 overnight. North northeast wind around 7 mph.
-UV
-Air quality
62%Humidity
61%Cloud

What is measuring near here

The 5 instruments nearest West Haven-Sylvan, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.5 miles away.

measured now3 instruments

Portland/HillsboroHIO

At an airfield/8.9 mi away/203 ft/351 ft below here

temp, wind, gust, visibility, precip, pressure

Rank92of 914

Milwaukee 1SE - Kellogg CreekKCMO3

At a river or reservoir gauge/9.1 mi away/59 ft/495 ft below here

temp, wind, gust, humidity, pressure

Rank815of 914

measured daily2 instruments

Portland 5.3 WOR-WS-103

In a volunteer observer's own ground/0.5 mi away/660 ft/106 ft above here

precip, snowfall, snow depth

Rank-

Nature Park-BeavertonNPBO3

At a cooperative observer's station/3.7 mi away/192 ft/362 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Portland/Hillsboro, drawn

The nearest airport reporting now, 8.9 mi from West Haven-Sylvan. From its report of Sep 27, 2026, 12:53 AM 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 Portland/Hillsboro, 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 HIOFIG. A THE SKY OVER PORTLAND/HILLSBOROSECTION, 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 MORE0510TITLEPortland/Hillsboro, the skySTATION REPORT · ASOS HIOTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-HIO-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

49.0 F with a dew point of 44.0 F, 83 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,200 ft up.

Chart of the air at Portland/Hillsboro: temperature 49.0 degrees Fahrenheit and dew point 44.0, 83 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,200 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HIOFIG. B THE AIR AT PORTLAND/HILLSBOROTHE 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 1,200 FT ABOVE THE STATION, AT 42.9 FTEMPERATURE 49.0 FDEW POINT 44.0 FSPREAD 5.0 FRELATIVE HUMIDITY 83 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 POINTTITLEPortland/Hillsboro, the airSTATION REPORT · ASOS HIOTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-HIO-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west northwest (290 degrees) at 6 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Portland/Hillsboro, north up: blowing from 290 degrees, the west northwest, at 6 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 HIOFIG. C THE WIND AT PORTLAND/HILLSBOROPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 290°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 6 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEPortland/Hillsboro, the windSTATION REPORT · ASOS HIOTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-HIO-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

-in

Snow on the ground

Elsewhere in Oregon

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

Near West Haven-Sylvan

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