Winter Weather Advisory Tonight

Of course there is.  It's MSU Graduation this weekend.

Here are the details:

Winter Weather Advisory in effect from 8 PM this evening to
noon MDT Saturday for elevations above 5500 feet...

The National Weather Service in Great Falls has issued a Winter
Weather Advisory for elevations above 5500 feet for snow... which
is in effect from 8 PM this evening to noon MDT Saturday.

* Timing and main impact: rain will change to snow for elevations
above 5500 feet this evening. A light snowfall is then expected
overnight and into Saturday morning.

* Snow accumulations: total snow accumulations of 2 to 4 inches
are expected for elevations above 5500 feet... with up to 6
inches possible near ridge tops.

* Visibility: visibilities will be reduced to less than one mile at
times in falling snow.

* Elevations: for elevations above 5500 feet.

* Other impacts: those recreating in the back country should be
prepared for winter like conditions tonight. Mountain passes
could be snow or slush covered at times overnight and into
Saturday morning.

* Locations affected include: Battle Ridge Pass... Bozeman Pass...
Targhee Pass... West Yellowstone... Big Hole Pass... Chief Joseph
Pass... Monida Pass... Boulder Hill... Elk Park Pass... Homestake
pass and Raynolds Pass.

Precautionary/preparedness actions...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities... and use caution while
driving.

For specific Road and travel conditions in Montana... dial 5 1 1.

Source:  Weather Underground