Northwest Montana Regional Forecast

Includes Lincoln and Sanders Counties (cities of Libby, Troy, Eureka, Yaak, Bull Lake, Noxon, Heron, Trout Creek, Thompson Falls, and The Cabinet Mountains)

Issued Tuesday October 16, 2018 - 7:45 p.m.

Tuesday night...Fair skies except for patchy valley fog and low clouds developing towards morning especially near lakes and rivers. Lows in the 20s to near 30 except locally upper teens colder valleys with near 40 around 5000 feet. Light wind.

Wednesday...Patchy morning valley freezing fog and low clouds otherwise sunny and warm. Highs in the upper 50s to upper 60s with mid 50s around 5000 feet. Light wind.

Wednesday night...Fair skies except for patchy late night valley fog and low clouds. Lows in the 20s to lower 30s except locally upper teens colder valleys with lower 40s around 5000 feet. Light wind.

Thursday...Patchy morning valley fog and low clouds otherwise occasional high clouds but mostly sunny and continued warm. Highs in the upper 50s to mid 60s with lower 50s around 5000 feet. Light wind except ridge top winds southwest 5 to 15 mph.


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Extended Outlook(Friday through Tuesday)

Thursday through Monday…Dry. Areas of night and morning valley fog and low clouds each day. Lows in the mid 20s to mid 30s with mid 40s around 5000 feet. Highs in the upper 50s to upper 60s with mid 50s around 5000 feet.

Tuesday…Increasing clouds. Breezy over higher elevations. Lows in the upper 20s to upper 30s with upper 30s around 5000 feet. Highs in the upper 50s to mid 60s with upper 40s around 5000 feet.


In-Depth Weather Discussion for Northwest Montana/Rockies

Issued 10/16/2018 7:55 p.m.

More of the same expected for the rest of the week into the upcoming weekend and even the start of next week. Patches of night and morning mist, fog and low clouds in the valleys with plentiful sunshine elsewhere can be expected for the next 6 days in a row. Only change to this pattern will be a weak shortwave passing to our north on Thursday which may bring a few passing high clouds, some breezes and slight cooling to the higher elevations. Thereafter the upper level ridge will remain in firm control of our weather with very warm temperatures especially aloft and cold nights in the valleys with mild overnight temperatures in the higher elevations. By next week models continue to indicate perhaps a change to a more active pattern by the middle of the week as the ridge begins to show signs of shifting east and weakening as a strong, zonal jet stream sets up across the North Pacific. For those of you heading out for the rifle season opener conditions look to remain dry and stable for the youth on Thursday and Friday and for everyone else this weekend. Stay safe and enjoy!