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Harlem, Montana

City in Blaine County, Montana

Air quality

The air at Harlem

Index 10, good, led by fine particles. Read at 3 AM from its reporting area, Havre (MT), 41 miles off.

10Good
  • Fine particles (PM2.5)10Good-

The days ahead

Yesterday measured 3, good.

Smoke, the next 46 hours

Little smoke near the ground through Sun 12 AM: the index from smoke stays at 6 or under.

FriSat

Precipitation

What has fallen at Harlem

None in the last 3 days, to Fri 2 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 Harlem, the next 46 hours

Visibility stays 10 miles or more through Sun 12 AM.

FriSat

On the radar over Harlem, MontanaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 4 instruments nearest Harlem, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.4 miles away.

measured now2 instruments

measured daily2 instruments

Fort Belknap 2 SWBKPM8

At a cooperative observer's station/4.7 mi away/2,524 ft/160 ft above here

snowfall, snow depth, precip, high, low

Rank-

Hogeland 7.0 SSEMT-BL-2

In a volunteer observer's own ground/17.3 mi away/3,154 ft/790 ft above here

precip, snowfall, snow depth

Rank-

Station report

The weather at Harlem Weather STN, drawn

The nearest instrument reporting now, 2.4 mi from Harlem, Montana. From its report of Oct 16, 2026, 3:00 AM local time: 3 of its 4 sheets.

The air

29.1 F with a dew point of 26.3 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 Harlem Weather STN: temperature 29.1 degrees Fahrenheit and dew point 26.3, 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 HWSM8FIG. B THE AIR AT HARLEM WEATHER STNTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00010 F20 F30 F40 FSATURATES 700 FT ABOVE THE STATION, AT 25.6 FTEMPERATURE AND DEW POINT 29.1 F, 26.3 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 POINTTITLEHarlem Weather STN, the airSTATION REPORT · DCP HWSM8TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 4DATE2026-10-16IDSR-HWSM8-1DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The column

At 2,346 ft above sea level, 8 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 27.47 inHg and the temperature at 50.6 F; it reports 29.1 F, 21.5 F colder than standard.

Section from sea level of where Harlem Weather STN stands in the atmosphere, height to scale: the station 2,346 feet above sea level with 8 per cent of the air below it; the standard atmosphere's pressure there, 27.47 inches of mercury, and temperature, 50.6 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HWSM8FIG. D WHERE HARLEM WEATHER STN 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 ATMOSPHEREHARLEM WEATHER STN8 PER CENT OF THE AIR BELOW IT2,346 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 HERE27.47 inHgSTANDARD TEMPERATURE HERE50.6 FTEMPERATURE, REPORTED29.1 FTITLEHarlem Weather STN, the columnSTATION REPORT · DCP HWSM8TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 4DATE2026-10-16IDSR-HWSM8-2DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The sun

On Oct 16 the noon sun stands 32 degrees above the horizon at 48.54 N, and the day is 10 h 36 min long. Level ground there takes 54 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Harlem Weather STN, angles true: on Oct 16 it stands 32 degrees above the horizon, against 65 at the June solstice, 41 at the equinoxes and 18 at the December solstice; the day is 10 h 36 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HWSM8FIG. E THE SUN AT HARLEM WEATHER STNELEVATION LOOKING WEST, SOUTH TO THE LEFT: THE NOON SUN ON THE DAY OF THE REPORT, AND AT THE SOLSTICES AND EQUINOXES; ANGLES TRUETHE STATIONJUNE SOLSTICE 65°EQUINOXES 41°DECEMBER SOLSTICE 18°OCT 16, 32°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 10 H 36 MINLEVEL GROUND TAKES 54 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 48.54 N; THE SUN'S DECLINATION -9.1°TITLEHarlem Weather STN, the sunSTATION REPORT · DCP HWSM8TYPEELEVATIONSCALEANGLES TRUEREVAS REPORTED SHEET 3 of 4DATE2026-10-16IDSR-HWSM8-3DRAWN AS linework on paperSOURCES FB-ENG-007

The full report of Harlem Weather STN, in 4 sheets, each beside the Field Book plates that explain it

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Snow on the ground

Elsewhere in Montana

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

Near Harlem

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

Near Harlem

River and lake gauges