Sunday will be a blue-sky day with highs in the mid to upper 60s around the region. A few spots in Southwest Montana could reach 70. Overnight lows will drop from the mid 30s to the upper 20s.
Your Monday starts out with a chilly morning followed by very warm temperatures for this time of year later in the day. A few mid 70s readings are possible, which could set daily high temperature records.
Tuesday sees changes as a storm system off the Pacific coast sends a wave of showers our direction along with a cold front. Expect much cooler temperatures with highs only in the 50s on Tuesday. A few mountain passes could see snowflakes. Rainfall totals will largely be under a quarter of an inch with isolated areas getting up to a half of an inch.
Another wave of moisture from that storm system off of the coast will impact Northwest Montana on Thursday. At the moment, areas north of I-90 should expect showers that day. Yet another round of rain is expected late next weekend. Temperatures later in the week will be in the upper 50s to mid 60s; near normal for this time of year.