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Ross Pass, Montana

Mountain pass in Fergus County, Montana, at 4,813 ft

Air quality

The air at Ross Pass

Index 28, good, led by ozone. Read at 10 AM from its reporting area, Lewistown (MT), 20 miles off.

28Good
  • Fine particles (PM2.5)0Good-
  • Ozone28Good36 ppb20.5 mi
  • Coarse particles (PM10)10Good20.5 mi

The days ahead

Yesterday measured 32, good.

Smoke, the next 45 hours

Little smoke near the ground through Sun 6 AM: the index from smoke stays at 17 or under.

FriSatSun

Precipitation

What has fallen at Ross Pass

None in the last 3 days, to Fri 9 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 Ross Pass, the next 45 hours

Visibility stays 10 miles or more through Sun 6 AM.

FriSatSun

Mountain pass

Height
4,813 ft
County
Fergus County
State
Montana
Latitude
47.2247° N
Longitude
109.0985° W

What is measuring near here

The 5 instruments nearest Ross Pass, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 5.9 miles away.

measured now3 instruments

Judith RAWSJPKM8

A remote fire weather station/5.9 mi away/6,351 ft/1,538 ft above here

temp, wind, gust, humidity, pressure

Lewistown MunicipalLWT

At an airfield/21.1 mi away/4,167 ft/646 ft below here

temp, wind, gust, visibility, precip, pressure

measured daily2 instruments

Lewistown 11 ESELWMM8

At a cooperative observer's station/15.9 mi away/4,715 ft/98 ft below here

snowfall, snow depth, precip, high, low

Lewistown 0.4 SWMT-FG-6

In a volunteer observer's own ground/19.5 mi away/4,019 ft/794 ft below here

precip, snowfall, snow depth

-

Snow on the ground

Elsewhere in Montana

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

Near Ross Pass

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

Near Ross Pass