Portland hits 84°F under mostly sunny skies today — the warmest day of the week — so make the most of it before a significant pattern change rolls in tonight.
Today’s Setup
The National Weather Service has the Willamette Valley climbing into the low-to-mid 80s this afternoon, with a light south wind of 2 to 9 mph keeping things comfortable. The ridge of high pressure is temporary, though. Forecasters at the NWS Portland office note this is the peak of the warm stretch before a shortwave trough moves in off the coast tonight. The earlier-feared heat risk is more muted than expected — there’s only a 5–10% chance the metro touches 90°F.
One catch for Rose City allergy sufferers: warm, dry days like this send pollen counts soaring. Keep an allergy relief nasal spray on hand, and consider a pollen count face mask if you’re spending extended time along the Eastbank Esplanade or in Forest Park. Running a HEPA air purifier indoors tonight isn’t a bad idea either, especially as windows close ahead of the rain.
Best Window To Be Outside
Roughly 10 AM to 6 PM is prime time. Hit the Wildwood Trail, cruise the Springwater Corridor, or grab lunch in the Pearl District — conditions are near perfect. If you’re heading out for a longer run, a hydration running vest will serve you well in the warmth. Check the Portland weather forecast for any afternoon updates.
Rain and Storm Risk Tonight
Here’s the flip side: the National Weather Service gives a 70% chance of showers and thunderstorms Tuesday night, with activity possible as early as 8 PM. Forecasters note a 15–25% chance of elevated thunderstorms overnight into early Wednesday morning — these likely won’t be surface-based, but lightning is still a real possibility. Wind gusts could reach 22 mph overnight.
Wednesday brings light rain with an 80–84% chance of precipitation, a high near 66°F, and southwest wind gusting to 28 mph. Pull out your rain boot shoe covers before you leave the house Wednesday morning. No flooding concerns locally — the WPC’s active excessive rainfall risk is focused on Florida’s east coast, not the Pacific Northwest.
Events to Plan Around
Tonight, Portland Fire host the New York Liberty at Moda Center — fully indoors, so weather’s no concern. Get tickets on SeatGeek if you still need them, and grab Official team gear on Fanatics to represent the Fire.
Tomorrow night, the Florence + The Machine Everybody Scream Tour lands at Moda Center on May 13 — also indoor, which is fortunate given the incoming rain. A Florence + The Machine t-shirt is the perfect show outfit, and you can Find tickets on StubHub if you’re still hunting. Joyce Manor w/ Militarie Gun also plays Roseland Theater on May 13 for a packed midweek slate.
Dinner Tonight
With gorgeous weather outside, pasta is an easy win for tonight — quick, light, and adaptable to whatever’s fresh. Toss it with vegetables from the Portland Farmers Market or go full comfort mode with a creamy sauce before the stormy stretch ahead. Need ingredients? You can order groceries on Amazon and have everything for tonight’s dinner delivered to your door.
Next Few Days
After Wednesday’s rain, lingering showers continue Thursday before another Gulf of Alaska low keeps precipitation chances going through the weekend. Temperatures trend slightly cooler — mid-to-upper 60s for most of the stretch ahead. Classic Portland late spring: one spectacular warm day, then back to gray. Stay tuned to the Portland weather forecast as the pattern evolves, and browse outdoor gear deals if you need to refresh your rain kit before the week is out.
