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Horn Lake, Mississippi

City in DeSoto County, Mississippi

Air quality

The air at Horn Lake

Index 56, moderate, led by fine particles. Read at 5 AM from its reporting area, Hernando (MS), 10 miles off.

56Moderate
  • Fine particles (PM2.5)56Moderate10.3 mi
  • Ozone36Good36 ppb10.3 mi

The days ahead

Good each day through Sun Oct 18, led by ozone. Yesterday measured 53, moderate.

Smoke, the next 44 hours

No smoke near the ground through Sun 1 AM.

FriSat

Precipitation

What has fallen at Horn Lake

None in the last 3 days, to Fri 4 AM. 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 Horn Lake, the next 44 hours

Visibility stays 10 miles or more through Sun 1 AM.

FriSat

On the radar over Horn Lake, MississippiReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 7 instruments nearest Horn Lake, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.7 miles away.

measured now5 instruments

Olive BranchOLV

At an airfield/15.0 mi away/402 ft/106 ft above here

temp, wind, gust, visibility, precip, pressure

Rank406of 459

Tunica ScanTNAM6

At a river or reservoir gauge/28.1 mi away/260 ft/36 ft below here

temp, wind, gust, humidity, pressure

Rank327of 459

TunicaS2034

At a soil climate station/28.2 mi away/260 ft/36 ft below here

temp, humidity, soil temp, soil moisture

Rank347of 459

measured daily2 instruments

Horn Lake 0.3 SWMS-DS-14

In a volunteer observer's own ground/0.7 mi away/282 ft/14 ft below here

precip, snowfall, snow depth

Rank-

Pleasant HillPLTM6

At a cooperative observer's station/9.4 mi away/289 ft/7 ft below here

snowfall, snow depth, precip, high, low

Rank278of 459

Station report

The weather at Olive Branch, drawn

The nearest airport reporting now, 15.0 mi from Horn Lake, Mississippi. From its report of Oct 16, 2026, 5:35 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 Olive Branch, 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 OLVFIG. A THE SKY OVER OLIVE BRANCHSECTION, 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 MORE0510TITLEOlive Branch, the skySTATION REPORT · ASOS OLVTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-OLV-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

71.6 F with a dew point of 60.8 F, 69 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,500 ft up.

Chart of the air at Olive Branch: temperature 71.6 degrees Fahrenheit and dew point 60.8, 69 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 2,500 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT OLVFIG. B THE AIR AT OLIVE BRANCHTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,00050 F60 F70 F80 FSATURATES 2,500 FT ABOVE THE STATION, AT 58.2 FTEMPERATURE 71.6 FDEW POINT 60.8 FSPREAD 10.8 FRELATIVE HUMIDITY 69 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 POINTTITLEOlive Branch, the airSTATION REPORT · ASOS OLVTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-OLV-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northwest (340 degrees) at 17 mph: force 4, a moderate breeze on the Beaufort scale.

Plan of the wind at Olive Branch, north up: blowing from 340 degrees, the north northwest, at 17 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT OLVFIG. C THE WIND AT OLIVE BRANCHPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 340°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 17 MPH5FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEOlive Branch, the windSTATION REPORT · ASOS OLVTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-OLV-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

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Snow on the ground

Elsewhere in Mississippi

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

Near Horn Lake

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

Near Horn Lake

River and lake gauges