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Melcher-Dallas, Iowa

City in Marion County, Iowa

Air quality

The air at Melcher-Dallas

Index 18, good, led by ozone. Read at 6 AM from its reporting area, Des Moines (IA), 30 miles off.

18Good
  • Fine particles (PM2.5)15Good-
  • Ozone18Good-

The days ahead

Good each day through Sat Oct 17, led by fine particles. Yesterday measured 18, good.

Smoke, the next 43 hours

No smoke near the ground through Sun 1 AM.

FriSat

Precipitation

What has fallen at Melcher-Dallas

0.20 in in the last 24 hours, 0.27 in over the last 3 days, to Fri 6 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.20in
Last 3 days
0.27in

Visibility

How far you can see at Melcher-Dallas, the next 43 hours

Visibility stays 7 miles or more through Sun 1 AM, lowest 8 miles Sat 4 AM.

FriSat

On the radar over Melcher-Dallas, IowaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 7 instruments nearest Melcher-Dallas, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 5.3 miles away.

measured now5 instruments

KnoxvilleOXV

At an airfield/8.4 mi away/925 ft/20 ft below here

temp, wind, gust, visibility, precip, pressure

Rank170of 1,060

measured daily2 instruments

Lacona 5.1 ESEIA-LC-3

In a volunteer observer's own ground/5.3 mi away/1,011 ft/66 ft above here

precip, snowfall, snow depth

Rank-

Chariton 1 ECHRI4

At a cooperative observer's station/16.1 mi away/974 ft/29 ft above here

snowfall, snow depth, precip, high, low

Rank19of 1,060

Station report

The weather at Knoxville, drawn

The nearest airport reporting now, 8.4 mi from Melcher-Dallas, Iowa. From its report of Oct 16, 2026, 6:35 AM local time: 3 of its 6 sheets.

The sky

Overcast at 2,900 ft; the ceiling is 2,900 ft; visibility 10 mi or more.

Section of the sky over Knoxville, height above the station to scale: overcast cloud with its base at 2,900 feet, the ceiling at 2,900 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT OXVFIG. A THE SKY OVER KNOXVILLESECTION, 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 STATION01,0002,0003,0004,0005,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 2,900 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 2,900 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEKnoxville, the skySTATION REPORT · ASOS OXVTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-OXV-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

48.2 F with a dew point of 41.0 F, 76 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,700 ft up; the lowest cloud reported is at 2,900 ft.

Chart of the air at Knoxville: temperature 48.2 degrees Fahrenheit and dew point 41.0, 76 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,700 feet above the station, against the lowest cloud reported at 2,900 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT OXVFIG. B THE AIR AT KNOXVILLETHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,00030 F40 F50 F60 FSATURATES 1,700 FT ABOVE THE STATION, AT 39.4 FLOWEST CLOUD REPORTED, OVC 2,900 FTTEMPERATURE 48.2 FDEW POINT 41.0 FSPREAD 7.2 FRELATIVE HUMIDITY 76 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 POINTTITLEKnoxville, the airSTATION REPORT · ASOS OXVTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-OXV-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west northwest (300 degrees) at 16 mph, gusting 24 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 26 mph.

Plan of the wind at Knoxville, north up: blowing from 300 degrees, the west northwest, at 16 miles an hour, gusting 24; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT OXVFIG. C THE WIND AT KNOXVILLEPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 300°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 16 MPH5FRESH BREEZE19GUST, 24 MPH6STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEKnoxville, the windSTATION REPORT · ASOS OXVTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-OXV-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

-

Snow on the ground

Elsewhere in Iowa

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

Near Melcher-Dallas

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

Near Melcher-Dallas

River and lake gauges