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Beacon, Iowa

City in Mahaska County, Iowa

Air quality

The air at Beacon

Index 16, good, led by ozone. Read at 10 PM from its reporting area, Lake Sugema (IA), 54 miles off.

16Good
  • Fine particles (PM2.5)9Good-
  • Ozone16Good-

The days ahead

Highest 55, moderate, today, led by fine particles. Yesterday measured 28, good.

Smoke, the next 46 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Beacon

0.11 in in the last 24 hours, 0.13 in over the last 3 days, to Thu 9 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.11in
Last 3 days
0.13in

Visibility

How far you can see at Beacon, the next 46 hours

Visibility stays 3 miles or more through Sat 7 PM, lowest 3 miles Sat 8 AM.

FriSat

On the radar over Beacon, IowaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 7 instruments nearest Beacon, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.1 miles away.

measured now5 instruments

EddyvilleRDYI4

Beside a road/9.2 mi away/801 ft/35 ft above here

temp, pavement temp, wind, visibility, precip

Rank851of 1,060

OskaloosaOOA

At an airfield/10.4 mi away/840 ft/74 ft above here

temp, wind, gust, visibility, precip, pressure

Rank263of 1,060

measured daily2 instruments

Oskaloosa 1.3 WSWIA-MH-12

In a volunteer observer's own ground/1.1 mi away/839 ft/73 ft above here

precip, snowfall, snow depth

Rank-

OskaloosaOSKI4

At a cooperative observer's station/3.1 mi away/830 ft/64 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Oskaloosa, drawn

The nearest airport reporting now, 10.4 mi from Beacon, Iowa. From its report of Oct 15, 2026, 10:15 PM local time: 3 of its 6 sheets.

The sky

No cloud below 12,000 ft; visibility 7 mi.

Section of the sky over Oskaloosa, height above the station to scale: no cloud detected below 12,000 feet, the reach of its ceilometer, and visibility of 7 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT OOAFIG. A THE SKY OVER OSKALOOSASECTION, 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: 7 MI0510TITLEOskaloosa, the skySTATION REPORT · ASOS OOATYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-OOA-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

54.5 F with a dew point of 50.0 F, 85 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,000 ft up.

Chart of the air at Oskaloosa: temperature 54.5 degrees Fahrenheit and dew point 50.0, 85 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,000 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT OOAFIG. B THE AIR AT OSKALOOSATHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00040 F50 F60 F70 FSATURATES 1,000 FT ABOVE THE STATION, AT 48.9 FTEMPERATURE 54.5 FDEW POINT 50.0 FSPREAD 4.5 FRELATIVE HUMIDITY 85 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 POINTTITLEOskaloosa, the airSTATION REPORT · ASOS OOATYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-OOA-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the northwest (310 degrees) at 17 mph, gusting 25 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 36 mph.

Plan of the wind at Oskaloosa, north up: blowing from 310 degrees, the northwest, at 17 miles an hour, gusting 25; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT OOAFIG. C THE WIND AT OSKALOOSAPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 310°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 17 MPH5FRESH BREEZE196STRONG BREEZE25GUST, 25 MPH7NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEOskaloosa, the windSTATION REPORT · ASOS OOATYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-OOA-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

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Snow on the ground

Elsewhere in Iowa

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

Near Beacon

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

Near Beacon

River and lake gauges