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Sun Valley, Idaho

City in Blaine County, Idaho

Air quality

The air at Sun Valley

Index 21, good, led by fine particles. Read at 12 AM from its reporting area, Ketchum (ID), 2 miles off.

21Good
  • Fine particles (PM2.5)21Good2.1 mi

The days ahead

Good each day through Mon Oct 19, led by fine particles. Yesterday measured 0, good.

Smoke, the next 43 hours

No smoke near the ground through Sat 6 PM.

FriSat

Precipitation

What has fallen at Sun Valley

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 Sun Valley, the next 43 hours

Visibility stays 10 miles or more through Sat 6 PM.

FriSat

On the radar over Sun Valley, IdahoReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Sun Valley, 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

Ketchum RsKETI1

At a river or reservoir gauge/1.4 mi away/5,866 ft/160 ft below here

temp, wind, gust, humidity, pressure

Rank255of 833

measured daily2 instruments

Ketchum RsKETI1

At a cooperative observer's station/1.4 mi away/5,866 ft/160 ft below here

snowfall, snow depth, precip, high, low

Rank674of 833

Ketchum 2.2 SSEID-BN-7

In a volunteer observer's own ground/1.7 mi away/5,750 ft/276 ft below here

precip, snowfall, snow depth

Rank48of 833

Station report

The weather at Hailey - Friedman Memorial, drawn

The nearest airport reporting now, 12.9 mi from Sun Valley, Idaho. From its report of Oct 16, 2026, 12:15 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 Hailey - Friedman Memorial, 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 SUNFIG. A THE SKY OVER HAILEY - FRIEDMAN MEMORIALSECTION, 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 MORE0510TITLEHailey - Friedman Memorial, the skySTATION REPORT · ASOS SUNTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-SUN-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

41.0 F with a dew point of 32.0 F, 70 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,000 ft up.

Chart of the air at Hailey - Friedman Memorial: temperature 41.0 degrees Fahrenheit and dew point 32.0, 70 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 2,000 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SUNFIG. B THE AIR AT HAILEY - FRIEDMAN MEMORIALTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00020 F30 F40 F50 FSATURATES 2,000 FT ABOVE THE STATION, AT 30.1 FTEMPERATURE 41.0 FDEW POINT 32.0 FSPREAD 9.0 FRELATIVE HUMIDITY 70 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 POINTTITLEHailey - Friedman Memorial, the airSTATION REPORT · ASOS SUNTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-SUN-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the northwest (310 degrees) at 9 mph: force 3, a gentle breeze on the Beaufort scale.

Plan of the wind at Hailey - Friedman Memorial, north up: blowing from 310 degrees, the northwest, at 9 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SUNFIG. C THE WIND AT HAILEY - FRIEDMAN MEMORIALPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 310°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 9 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEHailey - Friedman Memorial, the windSTATION REPORT · ASOS SUNTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-SUN-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Hailey - Friedman Memorial, in 6 sheets, each beside the Field Book plates that explain it

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Snow on the ground

Elsewhere in Idaho

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

Near Sun Valley

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

Near Sun Valley

River and lake gauges