Portland drivers and weekend planners should brace for a quick change in conditions as summer-like heat gives way to fall storms. After highs near 88 on Thursday, showers and thunderstorms threaten the metro area starting Friday, with impacts likely stretching into early next week. Those heading out on Interstate 5 should prepare for slick roads and possible delays.
According to the National Weather Service in Portland, rain chances increase Friday afternoon and evening, with scattered thunderstorms possible after 5 p.m. The first round of storms could bring gusty winds, ponding on roadways, and reduced visibility. Saturday remains unsettled, with a 40% chance of showers overnight and lingering thunder possible into Sunday.
Localized downpours may cause minor flooding in low-lying areas, while cooler temperatures could affect outdoor events, including high school football games Friday night. Officials advise drivers to allow extra travel time, avoid standing water, and check updates before heading out.
By Monday, highs will only reach the low 70s, marking a noticeable fall pattern shift. Showers and possible thunderstorms continue through at least Wednesday, keeping conditions damp and cooler across Portland and surrounding communities.
Five Day Forecast for Portland, OR
- Thursday: Mostly sunny, high near 88.
- Friday: Slight chance of showers, high near 86. Thunderstorms possible after 5 p.m.
- Saturday: Chance of showers and storms, high near 79.
- Sunday: Slight chance of showers, mainly after 11 a.m., high near 78.
- Monday: Showers with thunderstorms possible after 11 a.m., high near 72.
