Dry and warm weather will continue today however, we will begin to see some subtle changes to the overall pattern. The ridge of high pressure which has delivered very mild and dry weather to the region over the past couple days will drift even farther east today while an upper level low on the western flank of the high shifts into California. In any case, we expect to see mild temperatures continue for most areas with highs generally in the upper 50s to Mid-60s. Also unlike yesterday, we will begin to see some increasing clouds associated with the aforementioned California upper level low. The latest satellite imagery is already showing significant cloudiness spreading into the southwest corner of Washington from the southeast and this mass of clouds will likely spill into the southwest half of our forecast area later today and tonight.
The weather will then take a potentially wetter turn by late Friday/Friday night as a consolidated cold front pushes into the Cascades in the afternoon and then across the remainder of the Inland Northwest overnight. The Wenatchee Valley can expect increasing clouds for Friday with afternoon high temperatures near 60. Mostly cloudy for Friday night with a 30% chance of light rain showers.
Mostly cloudy skies to kick off our weekend on Saturday with highs in the upper 50’s. Sunday looks nice with partly cloudy skies and high temperatures around 60 degrees.
By Monday, a persistent southwest jet stream sandwiched between high pressure over the Central Rockies and low pressure off the coast will steer a series of weather systems through the region bringing periods of rain and high mountain snow showers. Expect a 40% chance of rain during the day on Monday with high temperatures cooling back into the mid-50’s. Monday night will be wet. We have an 80% chance of rain with up to three-tenths of an inch of precipitation expected. Still cloudy for Tuesday and Wednesday with a 30-40% chance of rain and afternoon high temperatures in the mid 50’s.