Portland, Oregon Weather:
Monday, May 18, 2026
Sunny with a Chance of Thunderstorms
Day 73°
Night 46°
Precipitation 60 %
Wind 6 mph
Weather Forecast History
Last Year's Weather on This Day (May 18, 2025)
Rainy Weather

Day

63°

Night

50°

Wind

7 mph

UV Index

3

Precipitation

49 %