MISSOULA — High pressure will be building over the northern Rockies today through Saturday. With high pressure sunny and dry weather is expected into the weekend.
High temperatures will remain in the 30's Wednesday and Thursday then make it into the 40's by Friday.
High pressure generally means sunny and dry weather, however, this time a year high pressure also comes with a few potential weather impacts. Expect very cold morning low temperatures, inversions leading to valley fog and freezing fog and reduced air quality
Areas that can remain cloud and fog free Wednesday and Thursday morning will see temperatures drop into the single digits or even below zero.
The inversions could also play a factor in the sunny skies. Valleys that see inversions along with fog and low lying clouds develop could very well have that linger into the afternoon. However, areas that can remain clear or break the inversions will see abundant sunshine.
Our next weather system will move in Sunday. While it is still early to talk snow fall totals, the system is shaping up to bring widespread mountain snow Sunday. As of now, the valleys look to see precipitation start as snow or a rain/snow mix before turning to all snow Sunday night into Monday. We will continue to bring updates on this as they become available.