May 2026 Weather | Portland, Oregon

Fri 5/1
Cloudy Weather
Day 70°
Night 52°
2
Sat 5/2
Cloudy Weather
Day 68°
Night 50°
65
Sun 5/3
Cloudy Weather
Day 66°
Night 52°
2
Mon 5/4
Cloudy Weather
Day 68°
Night 46°
0
Tue 5/5
Sunny with a Chance of Thunderstorms
Day 61°
Night 45°
0
Wed 5/6
Stormy Weather
Day 59°
Night 45°
2
Thu 5/7
Partly Sunny with Showers
Day 59°
Night 45°
3
Fri 5/8
Cloudy Weather
Day 61°
Night 43°
0
Sat 5/9
Cloudy Weather
Day 63°
Night 45°
2
Sun 5/10
Cloudy Weather
Day 63°
Night 52°
25
Mon 5/11
Cloudy Weather
Day 64°
Night 45°
96
Tue 5/12
Cloudy Weather
Day 70°
Night 48°
40
Wed 5/13
Cloudy Weather
Day 64°
Night 48°
44
Thu 5/14
Cloudy Weather
Day 63°
Night 46°
21
Fri 5/15
Cloudy Weather
Day 63°
Night 45°
84
Sat 5/16
Cloudy Weather
Day 63°
Night 45°
96
Sun 5/17
Cloudy Weather
Day 64°
Night 46°
95
Mon 5/18
Sunny with a Chance of Thunderstorms
Day 73°
Night 46°
60
Tue 5/19
Rainy Weather
Day 64°
Night 46°
49
Wed 5/20
Cloudy Weather
Day 68°
Night 50°
8
Thu 5/21
Cloudy Weather
Day 66°
Night 46°
91
Fri 5/22
Rainy Weather
Day 63°
Night 45°
40
Sat 5/23
Cloudy Weather
Day 64°
Night 48°
3
Sun 5/24
Rainy Weather
Day 66°
Night 48°
9
Mon 5/25
Rainy Weather
Day 63°
Night 52°
58
Tue 5/26
Cloudy Weather
Day 66°
Night 54°
6
Wed 5/27
Sunny with a Chance of Thunderstorms
Day 73°
Night 54°
0
Thu 5/28
Rainy Weather
Day 64°
Night 48°
67
Fri 5/29
Rainy Weather
Day 64°
Night 52°
0
Sat 5/30
Rainy Weather
Day 66°
Night 46°
1
Sun 5/31
Rainy Weather
Day 66°
Night 48°
0