Storm Station
Sign in

Mercer, North Dakota

City in McLean County, North Dakota

Air quality

The air at Mercer

Index 20, good, led by ozone. Read at 2 AM from its reporting area, Bismarck (ND), 46 miles off.

20Good
  • Fine particles (PM2.5)4Good-
  • Ozone20Good-
  • Coarse particles (PM10)3Good-

The days ahead

Yesterday measured 21, good.

Smoke, the next 41 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Mercer

None in the last 3 days, to Fri 1 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 Mercer, the next 41 hours

Visibility stays 8 miles or more through Sat 7 PM, lowest 8 miles Fri 9 AM.

FriSat

On the radar over Mercer, North DakotaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 4 instruments nearest Mercer, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 9.0 miles away.

measured now2 instruments

Washburn ESS US-83ND026

Beside a road/19.9 mi away/1,869 ft/62 ft below here

temp, pavement temp, wind, visibility, precip

Rank-

GarrisonN60

At an airfield/35.6 mi away/1,926 ft/5 ft below here

temp, wind, gust, visibility, precip, pressure

Rank3of 312

measured daily2 instruments

Turtle LakeTULN8

At a cooperative observer's station/9.0 mi away/1,903 ft/28 ft below here

snowfall, snow depth, precip, high, low

Rank-

Wing 8.0 NNEND-BH-53

In a volunteer observer's own ground/28.5 mi away/2,072 ft/141 ft above here

precip, snowfall, snow depth

Rank-

Station report

The weather at Garrison, drawn

The nearest airport reporting now, 35.6 mi from Mercer, North Dakota. From its report of Oct 16, 2026, 1:54 AM local time: 3 of its 5 sheets.

The air

39.0 F with a dew point of 36.0 F, 89 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 700 ft up.

Chart of the air at Garrison: temperature 39.0 degrees Fahrenheit and dew point 36.0, 89 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 700 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT N60FIG. B THE AIR AT GARRISONTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00020 F30 F40 F50 FSATURATES 700 FT ABOVE THE STATION, AT 35.3 FTEMPERATURE 39.0 FDEW POINT 36.0 FSPREAD 3.0 FRELATIVE HUMIDITY 89 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 POINTTITLEGarrison, the airSTATION REPORT · ASOS N60TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 5DATE2026-10-16IDSR-N60-1DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northwest (340 degrees) at 13 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 32 mph.

Plan of the wind at Garrison, north up: blowing from 340 degrees, the north northwest, at 13 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 N60FIG. C THE WIND AT GARRISONPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 340°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 13 MPH5FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEGarrison, the windSTATION REPORT · ASOS N60TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 2 of 5DATE2026-10-16IDSR-N60-2DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The column

At 1,926 ft above sea level, 7 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 27.90 inHg and the temperature at 52.1 F; the station's altimeter setting of 30.62 inHg means its barometer reads 28.55 inHg; it reports 39.0 F, 13.1 F colder than standard.

Section from sea level of where Garrison stands in the atmosphere, height to scale: the station 1,926 feet above sea level with 7 per cent of the air below it; the standard atmosphere's pressure there, 27.90 inches of mercury, and temperature, 52.1 degrees Fahrenheit; the altimeter setting of 30.62 and the station pressure it means, 28.55.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT N60FIG. D WHERE GARRISON STANDS IN THE ATMOSPHERESECTION FROM SEA LEVEL, HEIGHT TO SCALE, THE STATION IN THE STANDARD ATMOSPHEREFT ABOVE SEA LEVEL05,00010,00015,000SEA LEVEL, 29.92 inHg IN THE STANDARD ATMOSPHEREGARRISON7 PER CENT OF THE AIR BELOW IT1,926 FT10 PER CENT OF THE AIR BELOW, 2,890 FT20 PER CENT OF THE AIR BELOW, 6,050 FT30 PER CENT OF THE AIR BELOW, 9,540 FT40 PER CENT OF THE AIR BELOW, 13,470 FTSTANDARD PRESSURE HERE27.90 inHgSTANDARD TEMPERATURE HERE52.1 FALTIMETER SETTING, REPORTED30.62 inHgITS BAROMETER READS28.55 inHgTEMPERATURE, REPORTED39.0 FTITLEGarrison, the columnSTATION REPORT · ASOS N60TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 3 of 5DATE2026-10-16IDSR-N60-3DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The full report of Garrison, in 5 sheets, each beside the Field Book plates that explain it

-

Snow on the ground

Elsewhere in North Dakota

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

Near Mercer

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

Near Mercer

River and lake gauges