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Windham, Montana

Community in Judith Basin County, Montana

Air quality

The air at Windham

Index 30, good, led by ozone. Read at 11 PM from its reporting area, Lewistown (MT), 32 miles off.

30Good
  • Fine particles (PM2.5)23Good-
  • Ozone30Good-
  • Coarse particles (PM10)4Good-

The days ahead

Yesterday measured 35, good.

Smoke, the next 43 hours

No smoke near the ground through Sat 6 PM.

FriSat

Precipitation

What has fallen at Windham

None in the last 3 days, to Thu 11 PM. 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 Windham, the next 43 hours

Visibility stays 10 miles or more through Sat 6 PM.

FriSat

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

What is measuring near here

The 7 instruments nearest Windham, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 6.4 miles away.

measured now5 instruments

MoccasinS2119

At a soil climate station/8.9 mi away/4,256 ft/2 ft below here

temp, humidity, soil temp, soil moisture

Rank687of 1,053

Lewistown MunicipalLWT

At an airfield/31.7 mi away/4,167 ft/91 ft below here

temp, wind, gust, visibility, precip, pressure

Rank-

measured daily2 instruments

Stanford 0.1 NWMT-JB-2

In a volunteer observer's own ground/6.4 mi away/4,287 ft/29 ft above here

precip, snowfall, snow depth

Rank-

StanfordSTNM8

At a cooperative observer's station/6.6 mi away/4,275 ft/17 ft above here

snowfall, snow depth, precip, high, low

Rank574of 1,053

Station report

The weather at Moccasin Agrimet, drawn

The nearest instrument reporting now, 8.9 mi from Windham, Montana. From its report of Oct 15, 2026, 11:00 PM local time: 3 of its 4 sheets.

The air

29.5 F with a dew point of 23.5 F, 78 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,400 ft up.

Chart of the air at Moccasin Agrimet: temperature 29.5 degrees Fahrenheit and dew point 23.5, 78 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,400 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MCWM8FIG. B THE AIR AT MOCCASIN AGRIMETTHE 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 1,400 FT ABOVE THE STATION, AT 22.2 FTEMPERATURE 29.5 FDEW POINT 23.5 FSPREAD 6.0 FRELATIVE HUMIDITY 78 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 POINTTITLEMoccasin Agrimet, the airSTATION REPORT · DCP MCWM8TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 4DATE2026-10-16IDSR-MCWM8-1DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The column

At 4,232 ft above sea level, 14 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 25.62 inHg and the temperature at 43.9 F; it reports 29.5 F, 14.4 F colder than standard.

Section from sea level of where Moccasin Agrimet stands in the atmosphere, height to scale: the station 4,232 feet above sea level with 14 per cent of the air below it; the standard atmosphere's pressure there, 25.62 inches of mercury, and temperature, 43.9 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MCWM8FIG. D WHERE MOCCASIN AGRIMET 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 ATMOSPHEREMOCCASIN AGRIMET14 PER CENT OF THE AIR BELOW IT4,232 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 HERE25.62 inHgSTANDARD TEMPERATURE HERE43.9 FTEMPERATURE, REPORTED29.5 FTITLEMoccasin Agrimet, the columnSTATION REPORT · DCP MCWM8TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 4DATE2026-10-16IDSR-MCWM8-2DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The sun

On Oct 16 the noon sun stands 34 degrees above the horizon at 47.06 N, and the day is 10 h 41 min long. Level ground there takes 56 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Moccasin Agrimet, angles true: on Oct 16 it stands 34 degrees above the horizon, against 66 at the June solstice, 43 at the equinoxes and 20 at the December solstice; the day is 10 h 41 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MCWM8FIG. E THE SUN AT MOCCASIN AGRIMETELEVATION 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 66°EQUINOXES 43°DECEMBER SOLSTICE 20°OCT 16, 34°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 10 H 41 MINLEVEL GROUND TAKES 56 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 47.06 N; THE SUN'S DECLINATION -9.1°TITLEMoccasin Agrimet, the sunSTATION REPORT · DCP MCWM8TYPEELEVATIONSCALEANGLES TRUEREVAS REPORTED SHEET 3 of 4DATE2026-10-16IDSR-MCWM8-3DRAWN AS linework on paperSOURCES FB-ENG-007

The full report of Moccasin Agrimet, in 4 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Stanford (STNM8), 6.6 miles from here, read 15 Oct, 18:00. measured daily

Elsewhere in Montana

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

Near Windham

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

Near Windham

River and lake gauges