Storm Station
Sign in

Heron Lake, Minnesota

City in Jackson County, Minnesota

Air quality

The air at Heron Lake

Index 22, good, led by fine particles. Read at 11 PM from its reporting area, Southwestern Minnesota (MN), 68 miles off.

22Good
  • Fine particles (PM2.5)22Good-
  • Ozone16Good-
  • Coarse particles (PM10)15Good-

The days ahead

Good each day through Sun Oct 18, led by ozone. Yesterday measured 24, good.

Smoke, the next 44 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Heron Lake

0.55 in in the last 24 hours, and none in the 2 days before, to Thu 11 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.55in
Last 3 days
0.55in

Visibility

How far you can see at Heron Lake, the next 44 hours

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

FriSat

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

What is measuring near here

The 6 instruments nearest Heron Lake, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.3 miles away.

measured now4 instruments

measured daily2 instruments

Heron Lake 2.0 NNEMN-JC-14

In a volunteer observer's own ground/2.3 mi away/1,436 ft/15 ft above here

precip, snowfall, snow depth

Rank-

LakefieldLKFM5

At a cooperative observer's station/10.1 mi away/1,453 ft/32 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Windom Muni Airp, drawn

The nearest airport reporting now, 13.3 mi from Heron Lake, Minnesota. From its report of Oct 15, 2026, 11:55 PM local time: 3 of its 6 sheets.

The sky

Scattered at 2,500 ft, overcast at 3,600 ft; the ceiling is 3,600 ft; visibility 10 mi or more.

Section of the sky over Windom Muni Airp, height above the station to scale: scattered cloud with its base at 2,500 feet, overcast cloud with its base at 3,600 feet, the ceiling at 3,600 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MWMFIG. A THE SKY OVER WINDOM MUNI AIRPSECTION, 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 STATION01,0002,0003,0004,0005,0006,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 3,600 FTOVERCAST, 8 EIGHTHS OF THE SKYSCT 2,500 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYCEILING 3,600 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEWindom Muni Airp, the skySTATION REPORT · ASOS MWMTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-MWM-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

46.4 F with a dew point of 41.0 F, 81 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 2,500 ft.

Chart of the air at Windom Muni Airp: temperature 46.4 degrees Fahrenheit and dew point 41.0, 81 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 2,500 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MWMFIG. B THE AIR AT WINDOM MUNI AIRPTHE 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 1,200 FT ABOVE THE STATION, AT 39.8 FLOWEST CLOUD REPORTED, SCT 2,500 FTTEMPERATURE 46.4 FDEW POINT 41.0 FSPREAD 5.4 FRELATIVE HUMIDITY 81 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 POINTTITLEWindom Muni Airp, the airSTATION REPORT · ASOS MWMTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-MWM-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west northwest (290 degrees) at 24 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 Windom Muni Airp, north up: blowing from 290 degrees, the west northwest, at 24 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 MWMFIG. C THE WIND AT WINDOM MUNI AIRPPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 290°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE19NOW, 24 MPH6STRONG BREEZE25GUST, 29 MPH7NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEWindom Muni Airp, the windSTATION REPORT · ASOS MWMTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-MWM-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

-

Snow on the ground

Elsewhere in Minnesota

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

Near Heron Lake

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

Near Heron Lake

River and lake gauges