Storm Station
Hays, Montana
40° 59°/37°
Clear· Feels like 37°·Light breeze 5 mph SE
Partly cloudy, with a low around 39. South southwest wind 2 to 6 mph.
0UV Low
-Air quality
67%Humidity
0%Cloud
Now
2:15 AM
40feels37
now, clear
Today
Sep 27
5937
overcast
Mon
Sep 28
6944
13mph
overcast
Tue
Sep 29
7151
23mph
overcast
Wed
Sep 30
5747
19mph
overcast
Thu
Oct 1
6043
17mph
overcast
Fri
Oct 2
7548
overcast
Sat
Oct 3
6250
21mph
partly cloudy day
40°
59°37°
69°44°
71°51°
57°47°
60°43°
75°48°
62°50°

As of 2:15 AM in Hays, Montana.

What is measuring near here

The 4 instruments nearest Hays, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 6.0 miles away.

measured now2 instruments

Hays Site MT-66 MP 10.5MTHAY

Beside a road/6.0 mi away/3,894 ft/230 ft above here

temp, pavement temp, wind, visibility, precip

Rank595of 702

Zortman MineALDM8

At a river or reservoir gauge/7.9 mi away/4,672 ft/1,008 ft above here

temp, wind, gust, humidity, pressure

Rank108of 702

measured daily2 instruments

Zortman 10.0 SSWMT-PH-1

In a volunteer observer's own ground/16.4 mi away/3,030 ft/634 ft below here

precip, snowfall, snow depth

Rank-

Fort Belknap 2 SWBKPM8

At a cooperative observer's station/32.3 mi away/2,524 ft/1,140 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Hays Site MT-66 MP 10.5, drawn

The nearest instrument reporting now, 6.0 mi from Hays. From its report of Sep 27, 2026, 2:00 AM local time: 3 of its 5 sheets.

The air

39.0 F with a dew point of 20.0 F, 46 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 4,300 ft up.

Chart of the air at Hays Site MT-66 MP 10.5: temperature 39.0 degrees Fahrenheit and dew point 20.0, 46 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 4,300 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MTHAYFIG. B THE AIR AT HAYS SITE MT-66 MP 10.5THE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0006,00010 F20 F30 F40 F50 FSATURATES 4,300 FT ABOVE THE STATION, AT 16.2 FTEMPERATURE 39.0 FDEW POINT 20.0 FSPREAD 19.0 FRELATIVE HUMIDITY 46 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 POINTTITLEHays Site MT-66 MP 10.5, the airSTATION REPORT · RWIS MTHAYTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 5DATE2026-09-27IDSR-MTHAY-1DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north (0 degrees) at 8 mph, gusting 10 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 14 mph.

Plan of the wind at Hays Site MT-66 MP 10.5, north up: blowing from 0 degrees, the north, at 8 miles an hour, gusting 10; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MTHAYFIG. C THE WIND AT HAYS SITE MT-66 MP 10.5PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 0°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 8 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEHays Site MT-66 MP 10.5, the windSTATION REPORT · RWIS MTHAYTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 2 of 5DATE2026-09-27IDSR-MTHAY-2DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

The column

At 3,894 ft above sea level, 13 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 25.94 inHg and the temperature at 45.1 F; it reports 39.0 F, 6.1 F colder than standard.

Section from sea level of where Hays Site MT-66 MP 10.5 stands in the atmosphere, height to scale: the station 3,894 feet above sea level with 13 per cent of the air below it; the standard atmosphere's pressure there, 25.94 inches of mercury, and temperature, 45.1 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MTHAYFIG. D WHERE HAYS SITE MT-66 MP 10.5 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 ATMOSPHEREHAYS SITE MT-66 MP 10.513 PER CENT OF THE AIR BELOW IT3,894 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 HERE25.94 inHgSTANDARD TEMPERATURE HERE45.1 FTEMPERATURE, REPORTED39.0 FTITLEHays Site MT-66 MP 10.5, the columnSTATION REPORT · RWIS MTHAYTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 3 of 5DATE2026-09-27IDSR-MTHAY-3DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The full report of Hays Site MT-66 MP 10.5, in 5 sheets, each beside the Field Book plates that explain it

-in

Snow on the ground

Elsewhere in Montana

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

Near Hays

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