Portland, OR – Sunny skies return to northwest Oregon this Saturday, but chilly overnight lows will linger into midweek, with temperatures dipping near the upper 30s in Portland. Weekend travelers and residents alike should prepare for cool spring evenings despite the daytime warmth.
According to the National Weather Service, Saturday in Portland will be mostly sunny with a high near 58°F and light northwest wind. Saturday night will bring mostly clear skies and a low around 37°F. These cooler nights are expected to persist, with temperatures in the 30s and 40s through Wednesday night. Drivers along the I-5 corridor should watch for overnight chill and fog potential during early morning hours.
Sunday’s forecast offers sunnier conditions and a high near 68°F. Monday and Tuesday continue the upward trend, with mostly sunny skies and daytime highs in the low- to mid-70s. However, spring’s trademark variability will return by Tuesday night, when temperatures drop to around 45°F, followed by a low of 47°F on Wednesday night.
Five-Day Forecast Overview (April 12–16):
- Saturday: Mostly sunny, high 58°F. Light wind.
- Saturday Night: Mostly clear, low 37°F.
- Sunday: Sunny, high 68°F.
- Monday: Mostly sunny, high 75°F.
- Monday Night: Partly cloudy, low 46°F.
- Tuesday: Mostly sunny, high 72°F.
- Tuesday Night: Partly cloudy, low 45°F.
- Wednesday: Mostly sunny, high 70°F.
- Wednesday Night: Partly cloudy, low 47°F.
