Storm Station
Custer, Montana
49° 63°/44°
Clear· Feels like 47°·Light breeze 4 mph E
Partly cloudy, with a low around 45. North northeast wind around 3 mph.
0UV Low
32Air quality
62%Humidity
0%Cloud
Now
2:15 AM
49feels47
now, clear
Today
Sep 27
6344
13mph
overcast
Mon
Sep 28
7146
overcast
Tue
Sep 29
8058
14mph
clear day
Wed
Sep 30
7156
21mph
overcast
Thu
Oct 1
7049
14mph
overcast
Fri
Oct 2
8353
overcast
Sat
Oct 3
7156
18%
20mph
overcast
49°
63°44°
71°46°
80°58°
71°56°
70°49°
83°53°
71°56°

As of 2:15 AM in Custer, Montana.

What is measuring near here

The 5 instruments nearest Custer, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 12.0 miles away.

measured now3 instruments

Hysham Hills I-94 MP 59.9MTHYH

Beside a road/12.0 mi away/3,337 ft/593 ft above here

temp, pavement temp, wind, visibility, precip

Rank700of 702

Big Horn County00U

At an airfield/27.0 mi away/2,999 ft/255 ft above here

temp, wind, gust, visibility, precip, pressure

Rank454of 702

Steamboat RAWSSTBM8

A remote fire weather station/27.6 mi away/3,783 ft/1,039 ft above here

temp, wind, gust, humidity, pressure

Rank116of 702

measured daily2 instruments

HyshamHYSM8

At a cooperative observer's station/19.4 mi away/2,644 ft/100 ft below here

snowfall, snow depth, precip, high, low

Rank-

Hardin 0.6 ENEMT-BH-2

In a volunteer observer's own ground/27.2 mi away/2,900 ft/156 ft above here

precip, snowfall, snow depth

Rank-

Station report

The weather at Big Horn County, drawn

The nearest airport reporting now, 27.0 mi from Custer. From its report of Sep 27, 2026, 2:10 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 Big Horn County, 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 00UFIG. A THE SKY OVER BIG HORN COUNTYSECTION, 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 MORE0510TITLEBig Horn County, the skySTATION REPORT · ASOS 00UTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-00U-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

50.0 F with a dew point of 28.4 F, 43 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 4,900 ft up.

Chart of the air at Big Horn County: temperature 50.0 degrees Fahrenheit and dew point 28.4, 43 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 4,900 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 00UFIG. B THE AIR AT BIG HORN COUNTYTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0006,0007,00010 F20 F30 F40 F50 F60 FSATURATES 4,900 FT ABOVE THE STATION, AT 24.0 FTEMPERATURE 50.0 FDEW POINT 28.4 FSPREAD 21.6 FRELATIVE HUMIDITY 43 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 POINTTITLEBig Horn County, the airSTATION REPORT · ASOS 00UTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-00U-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north (360 degrees) at 8 mph, gusting 14 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 14 mph.

Plan of the wind at Big Horn County, north up: blowing from 360 degrees, the north, at 8 miles an hour, gusting 14; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 00UFIG. C THE WIND AT BIG HORN COUNTYPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 360°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 8 MPH4MODERATE BREEZE13GUST, 14 MPH5FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEBig Horn County, the windSTATION REPORT · ASOS 00UTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-00U-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Big Horn County, in 6 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Hysham (HYSM8), 19.4 miles from here, read 20 Sep, 08:00. measured daily

Elsewhere in Montana

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

Near Custer

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