Cool and chilly weather conditions have enveloped the region, with Sunday recording high temperatures ranging from the mid to upper 40s and 50s. As temperatures dip tonight into the 20s and 30s, cloudy skies are expected to persist, accompanied by rain in lower elevations and snow in higher altitudes. Winds will contribute to the chill, blowing at 5 to 10 mph with gusts reaching up to 20 mph.
Tonight marks a significant weather transition as upper-level ridging breaks down, paving the way for a shortwave disturbance that will bring increased cloudiness. Snowfall will commence in the higher terrain along the Continental Divide, while rain or possibly freezing rain will begin impacting the Hi-Line overnight.
A Winter Weather Advisory is set to take effect from approximately 11 pm to noon on Monday, highlighting the challenges posed by slippery roads and blowing snow.
The precipitation will rapidly extend south and east, as a colder air mass sweeps into the region. Rain falling at lower elevations is expected to transition to snow as temperatures drop overnight. Though accumulation on roads and sidewalks in lower areas may be minimal, higher elevations could see significant snowfall, with some mountain passes accumulating at least 6 inches by tomorrow afternoon and evening.
Monday’s forecast predicts lingering cloudy skies, with a mix of rain and snow at lower elevations and snow accumulation in higher terrain. Highs will range between the 30s and 40s, accompanied by breezy conditions.
Looking ahead, high pressure is anticipated to build into the region on Tuesday, resulting in cooler but more seasonable temperatures midweek. Northerly winds may trigger scattered snow showers, particularly along the Rocky Mountain Front and the northern slopes of the Little Belt and Snowy Mountains, especially in the Great Falls to Lewistown corridor.
Thanksgiving Day may bring a wider scope of light snowfall, although accumulations are expected to be minimal. However, as the weekend approaches, forecasters predict an increase in snow intensity with the potential arrival of the first true arctic air mass of the season, leading to widespread subzero temperatures within the region.
Overall, while wintery weather is on its way, it also signifies the onset of a beautiful season, with many eagerly awaiting the picturesque snowy landscapes it brings.