MISSOULA — Today’s high pressure starts to break down across the northwest.
Clouds are entering areas north of the I-90 corridor.
Tonight’s sunset occurs at 5:16 PM, so the sun will set, and temperatures will cool quickly as some of us are still in line to vote.
A few isolated showers are in the northwest’s forecast later tonight, but these will be light.
It may be a good idea to take a raincoat if you are out in about, otherwise, we will just be dodging these spotty showers after the 8 PM hour.
Tomorrow, isolated showers return to the forecast for the I-90 corridor and north.
These showers will be light and spotty, too.
Highs remain in the mid to upper 50s through Thursday.
A cold front moving in from the west is responsible for the isolated showers Wednesday and widespread showers in all Western Montana Thursday.
However, the main difference with a cold front approaching form the west is that we will not see the drastic change in temperatures,
There is enough energy to kick up some showers and bring in some moisture, but temperatures hold in the mdi to upper 50s through Thursday and drop to the mid 40s on Friday.
The weekend is where the big changes come into play.
A cold front (this time from the north) will bring MUCH colder air and another round of rain that will turn to snow.
As this cold front approaches Friday, rain will still be in valleys’ forecasts.
Cold air masses settle in and that rain will turn to snow Friday night into Saturday morning.
Highs this weekend remain below freezing with lows dropping to the teens and single digits.
We are not confident on how much moisture will be around when this colder air mass arrives, so snow totals are not confidently being produced today.
By the end of the week, we should have a better understanding in moisture amounts for the weekend.