Todays weather in Portland · 12 May 2026 · 4 min

Near-90° in Mid-May — Then Rain Tonight and a 20° Cooldown

Portland is flirting with ninety degrees today — fifteen to twenty degrees above normal for mid-May — before evening showers arrive and a confirmed midweek cool-down drops temperatures more than twenty degrees. Get the full forecast before you walk out the door underprepared.

Todays weather in Portland
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Near-90° in Mid-May — Then Rain Tonight and a 20° Cooldown

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Portland Hits Near-90 Today

Portland is flirting with ninety degrees today. In mid-May.

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Offshore Wind and Heat Mechanics

Light winds and full sun together do something specific. They remove the cooling relief you'd normally get from a breeze.

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What to Wear Right Now

For what to wear today, the answer is layered and tactical. Step out this morning in something light.

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Evening Showers Moving In Tonight

The turn comes tonight. Showers are expected to begin this evening, earlier than was anticipated even a day ago.

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Midweek Cooling Pattern Confirmed

The midweek cooling is now confirmed. High pressure weakens by Wednesday, and cooler, wetter conditions are expected to hold through the middle of the week.

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Key Signals to Watch

The two things worth watching as the day develops: whether any location in the metro actually crosses ninety, and how quickly those evening showers arrive. If rain moves in earlier than forecast, the window for outdoor activity today is shorter than it looks.

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