Storm Station
Sign in

Sesser, Illinois

City in Franklin County, Illinois

Air quality

The air at Sesser

Index 19, good, led by ozone. Read at 1 PM from its reporting area, Farrar (MO), 44 miles off.

19Good
  • Fine particles (PM2.5)-23.1 mi
  • Ozone19Good20 ppb23.1 mi

The days ahead

Yesterday measured 26, good.

Smoke, the next 43 hours

No smoke near the ground through Sun 7 AM.

FriSatSun

Precipitation

What has fallen at Sesser

0.35 in in the last 24 hours, 1.40 in over the last 3 days, to Fri 12 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.35in
Last 3 days
1.40in

Visibility

How far you can see at Sesser, the next 43 hours

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

FriSatSun

On the radar over Sesser, IllinoisReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 5 instruments nearest Sesser, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.6 miles away.

measured now3 instruments

measured daily2 instruments

Sesser 1.5 EIL-FK-1

In a volunteer observer's own ground/1.6 mi away/463 ft/14 ft below here

precip, snowfall, snow depth

Rank-

Rend Lake DamRENI2

At a dam/4.9 mi away/453 ft/24 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Mount Vernon, drawn

The nearest airport reporting now, 19.2 mi from Sesser, Illinois. From its report of Oct 16, 2026, 12:56 PM local time: 3 of its 6 sheets.

The sky

Broken at 4,200 ft, overcast at 4,900 ft; the ceiling is 4,200 ft; visibility 10 mi or more.

Section of the sky over Mount Vernon, height above the station to scale: broken cloud with its base at 4,200 feet, overcast cloud with its base at 4,900 feet, the ceiling at 4,200 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MVNFIG. A THE SKY OVER MOUNT VERNONSECTION, 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 STATION01,0002,0003,0004,0005,0006,0007,0008,000ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 4,900 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 4,200 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 4,200 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEMount Vernon, the skySTATION REPORT · ASOS MVNTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-MVN-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

56.0 F with a dew point of 40.0 F, 55 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 3,600 ft up; the lowest cloud reported is at 4,200 ft.

Chart of the air at Mount Vernon: temperature 56.0 degrees Fahrenheit and dew point 40.0, 55 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 3,600 feet above the station, against the lowest cloud reported at 4,200 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MVNFIG. B THE AIR AT MOUNT VERNONTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0006,00030 F40 F50 F60 F70 FSATURATES 3,600 FT ABOVE THE STATION, AT 36.6 FLOWEST CLOUD REPORTED, BKN 4,200 FTTEMPERATURE 56.0 FDEW POINT 40.0 FSPREAD 16.0 FRELATIVE HUMIDITY 55 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 POINTTITLEMount Vernon, the airSTATION REPORT · ASOS MVNTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-MVN-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west northwest (300 degrees) at 9 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 24 mph.

Plan of the wind at Mount Vernon, north up: blowing from 300 degrees, the west northwest, at 9 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MVNFIG. C THE WIND AT MOUNT VERNONPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 300°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 9 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEMount Vernon, the windSTATION REPORT · ASOS MVNTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-MVN-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

-

Snow on the ground

Elsewhere in Illinois

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

Near Sesser

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

Near Sesser

River and lake gauges