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Porter, Minnesota

City in Yellow Medicine County, Minnesota

Air quality

The air at Porter

Index 15, good, led by ozone. Read at 2 AM from its reporting area, Southwestern Minnesota (MN), 31 miles off.

15Good
  • Fine particles (PM2.5)14Good20.8 mi
  • Ozone15Good14 ppb20.8 mi
  • Coarse particles (PM10)7Good20.8 mi

The days ahead

Good each day through Sun Oct 18, led by ozone. Yesterday measured 27, good.

Smoke, the next 41 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Porter

0.06 in in the last 24 hours, 0.07 in over the last 3 days, to Fri 1 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.06in
Last 3 days
0.07in

Visibility

How far you can see at Porter, the next 41 hours

Visibility stays 9 miles or more through Sat 7 PM, lowest 10 miles Fri 3 AM.

FriSat

On the radar over Porter, MinnesotaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Porter, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.7 miles away.

measured now4 instruments

CanbyCNB

At an airfield/8.2 mi away/1,191 ft/16 ft below here

temp, wind, gust, visibility, precip, pressure

Rank831of 1,965

measured daily2 instruments

Porter 2.2 SSWMN-LN-7

In a volunteer observer's own ground/1.7 mi away/1,305 ft/98 ft above here

precip, snowfall, snow depth

Rank-

CanbyCANM5

At a cooperative observer's station/7.6 mi away/1,240 ft/33 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Canby, drawn

The nearest airport reporting now, 8.2 mi from Porter, Minnesota. From its report of Oct 16, 2026, 2:55 AM local time: 3 of its 6 sheets.

The sky

Overcast at 2,200 ft; the ceiling is 2,200 ft; visibility 10 mi or more.

Section of the sky over Canby, height above the station to scale: overcast cloud with its base at 2,200 feet, the ceiling at 2,200 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CNBFIG. A THE SKY OVER CANBYSECTION, 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 STATION05001,0001,5002,0002,5003,0003,500ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 2,200 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 2,200 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLECanby, the skySTATION REPORT · ASOS CNBTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-CNB-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

44.6 F with a dew point of 39.4 F, 82 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,200 ft up; the lowest cloud reported is at 2,200 ft.

Chart of the air at Canby: temperature 44.6 degrees Fahrenheit and dew point 39.4, 82 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, against the lowest cloud reported at 2,200 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CNBFIG. B THE AIR AT CANBYTHE 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 38.3 FLOWEST CLOUD REPORTED, OVC 2,200 FTTEMPERATURE 44.6 FDEW POINT 39.4 FSPREAD 5.2 FRELATIVE HUMIDITY 82 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 POINTTITLECanby, the airSTATION REPORT · ASOS CNBTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-CNB-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northwest (330 degrees) at 20 mph, gusting 29 mph: force 5, a fresh breeze on the Beaufort scale. The strongest gust today was 35 mph.

Plan of the wind at Canby, north up: blowing from 330 degrees, the north northwest, at 20 miles an hour, gusting 29; beside it the Beaufort scale from calm to hurricane force, force 5, fresh breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CNBFIG. C THE WIND AT CANBYPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 330°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE19NOW, 20 MPH6STRONG BREEZE25GUST, 29 MPH7NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLECanby, the windSTATION REPORT · ASOS CNBTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-CNB-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

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Snow on the ground

Elsewhere in Minnesota

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

Near Porter

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

Near Porter

River and lake gauges