Portland Jetport (PWM) Weather 07/13/2026
Overnight
59
Partly Cloudy
Tuesday
83
Mostly Sunny
Tuesday Night
65
Chance Showers
Wednesday
95
Chance Showers then Mostly Sunny
Wednesday Night
71
Partly Cloudy
Thursday
98
Hot
Thursday Night
73
Mostly Clear
Friday
99
Hot
Friday Night
71
Mostly Clear
Independence Day
90
Mostly Sunny then Chance T-storms
Saturday Night
67
Chance T-storms then Partly Cloudy
Sunday
90
Hot
Sunday Night
64
Partly Cloudy
Weekly Forecast
Overnight
Partly cloudy, with a low around 59. Southwest wind around 5 mph.
Tuesday
Mostly sunny, with a high near 83. Light southwest wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Tuesday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am, then a chance of showers and thunderstorms after 2am. Increasing clouds, with a low around 65. Southwest wind around 10 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 30 percent chance of showers before 7am. Mostly sunny and hot, with a high near 95. Heat index values as high as 103. Southwest wind around 10 mph.
Wednesday Night
Partly cloudy, with a low around 71. Southwest wind around 5 mph.
Thursday
Sunny and hot, with a high near 98.
Thursday Night
Mostly clear, with a low around 73.
Friday
Sunny and hot, with a high near 99.
Friday Night
Mostly clear, with a low around 71.
Independence Day
A 30 percent chance of showers and thunderstorms after 3pm. Mostly sunny and hot, with a high near 90.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Sunday
Mostly sunny and hot, with a high near 90.
Sunday Night
Partly cloudy, with a low around 64.