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Lewis and Clark Pass, Montana

Mountain pass in Lewis and Clark County, Montana, at 6,425 ft

Air quality

The air at Lewis and Clark Pass

Index 29, good, led by fine particles. Read at 10 PM from its reporting area, Helena (MT), 42 miles off.

29Good
  • Fine particles (PM2.5)29Good-

The days ahead

Yesterday measured 34, good.

Smoke, the next 44 hours

Little smoke near the ground through Sat 6 PM: the index from smoke stays at 6 or under.

FriSat

Precipitation

What has fallen at Lewis and Clark Pass

None in the last 3 days, to Thu 10 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 Lewis and Clark Pass, the next 44 hours

Visibility stays 10 miles or more through Sat 6 PM.

FriSat

Mountain pass

Height
6,425 ft
County
Lewis and Clark County
State
Montana
Latitude
47.1427° N
Longitude
112.4289° W

What is measuring near here

The 5 instruments nearest Lewis and Clark Pass, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 4.6 miles away.

measured now3 instruments

Roger's PassMTROG

Beside a road/4.6 mi away/5,390 ft/1,035 ft below here

temp, pavement temp, wind, visibility, precip

Copper Bottom SnotelCOPM8

A snow pillow on a mountain/9.8 mi away/5,200 ft/1,225 ft below here

temp, wind, gust, humidity, pressure

Golf1GM

At an airfield/20.1 mi away/4,333 ft/2,092 ft below here

temp, wind, gust, visibility, precip, pressure

measured daily2 instruments

Lincoln Ranger StationLINM8

At a fire lookout or ranger station/16.7 mi away/4,603 ft/1,822 ft below here

snowfall, snow depth, precip, high, low

Lincoln 0.2 SEMT-LC-18

In a volunteer observer's own ground/17.6 mi away/4,552 ft/1,873 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 Lewis and Clark Pass

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

Near Lewis and Clark Pass