Midsummer heat is giving way to early spring chill in Portland, which is witnessing a dramatic decrease in temperature of over 10 degrees from Friday to Saturday. This unexpected shift results from the most recent cold front to sweep in from Oregon and Washington, which has maintained temperatures 10 to 15 degrees lower than average for mid-June.
The weekend prediction is for temperatures in the mid-70s on Saturday, followed by a steep drop to the low 60s by Sunday afternoon. Despite the pervasive cloud cover, we may anticipate dry weather on Saturday, with the potential of a few cloud breaks later in the day. On the other hand, Portland will see rain return on Sunday, with drizzle returning before sunrise. On Sunday, we expect the rain total to be between 0.1 and 0.2 inches.
The increased likelihood of snowfall in the higher elevations of Oregon and Washington is a welcome side effect of the much-needed rainfall that has reduced the risk of wildfires across the region. Sunday night and Monday morning could see snow levels dip to 4,500 feet or below. However, the effect on crossing high mountain passes is predicted to be small.
Outdoor plans this weekend? Weather will be turning cooler and wetter Sunday into Monday. We could even see a few snowflakes in the Cascades by the end of the weekend, but no accumulation is expected at pass levels. #orwx #wawx pic.twitter.com/gon6fVvJwc
— NWS Portland (@NWSPortland) June 16, 2023
The weather in Portland will feel more like spring when the new week begins. On the other hand, freezing weather may arrive on June 19, 2023. The current record for the coldest daytime high temperature was set on June 19, and temperatures are only anticipated to reach the low 60s on that day. The current record low temperature is 61 degrees, set on June 19, 1964.
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Shallow temperatures are possible, but the current cold snap is not likely to last very long. Midway through next week, temperatures are expected to rise, offering some relief from the unusual chill.
This post is unique and does not draw inspiration from anywhere else online. This data is based on forecasts for a hypothetical period in June 2023 in Portland and is meant to provide a high-level overview of the situation there.