Portland

Sunny Spells with Thunderstorm Risks Ahead, Says NWS

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Published on September 03, 2025
Sunny Spells with Thunderstorm Risks Ahead, Says NWSSource: Google Street View

The forecast for Portland stays as capricious as ever, with changes in the weather pattern bringing a smattering of sunny days peppered with chances of showers and thunderstorms. According to the National Weather Service (NWS), Portlanders can expect partly cloudy skies with a high near 88 degrees today. While the morning started off clear, there remains a "20 percent chance of showers before midnight," the NWS reports. A calm wind is due to turn northwest at around 5 mph in the afternoon.

The evening brings an incrementally higher probability of weather disruptions. Subsequently, the night will transition towards clear skies, bottoming out at a comfortable 65 degrees, albeit accompanied by a calm north wind becoming again calm in the evening. The pattern of precipitation continues into the end of the week, with a "slight chance of showers between 11am and 5pm" pegged for Friday, and "a slight chance of showers and thunderstorms after 5pm" on the same day, according to NWS.

Looking towards the weekend, there is no reprieve from the uncertainty. "Chance of precipitation is 40%," on Saturday, as made plain by NWS, points to a good chance that outdoor activities may need to be rescheduled or appropriately rainproofed. The high for Saturday is forecasted to be a cooler 77 degrees, with the clouds sticking around to keep things mostly cloudy.

The rhythm of the seemingly non-committal weather dances on into the early days of the next week. "A chance of showers" is on repeat from Sunday night through Tuesday. The NWS has concluded that temperatures will dip slightly, with highs ranging from 74 to 79 degrees. While nighttime lows hover consistently, barring drastic deviations, around the low 60s, the beginning of the week may feel invariably soaked by showers.