A pair of cold fronts will impact the Valley between now and the weekend, leading the coldest air we've seen so far this fall. The first of the fronts has just passed through. It was responsible for the widespread, heavy rain we saw overnight and into the morning. Skies will clear for Wednesday afternoon, and we can expect quiet (but cool) conditions ahead of our next weather maker.
Cold front #2 will be just to our northwest on Friday morning. We should see a more cloud cover as it tracks through the Valley. There may even be a few rain showers along it as well. The most noticeable influence it will have on our weather will be felt in the form of stronger winds.
After the front passes on Halloween (late morning/early afternoon) our winds will pick up out of the north or northwest. Expect sustained winds of 10-20 mph with gusts of 25-30. Those breezy winds will continue into the evening...leading to brisk conditions for trick-or-treaters. Highs won't be much warmer than 60 on Friday afternoon, and evening temperatures will fall into the 40s!
The front will be well clear of the area on Saturday. Morning temperatures should be in the mid 30s with some patchy frost. Winds won't be as strong as on Friday, but gusts of 15-20 mph could still occur during the afternoon.
It will be sunny, but temperatures will stay in the 50s on Saturday. That night looks to be even colder than the morning. Temperatures for some will slip below freezing. It's looking more and more likely much the Valley will experience the first widespead frost/freeze of the fall this weekend.
Temperatures begin to warm into next week.
-Meteorologist David Ernst