National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Portland, Portland International Jetport (KPWM)

Lat: 43.64°NLon: 70.3°WElev: 72ft.

Partly Cloudy

65°F

18°C

Humidity 84%
Wind Speed Calm
Barometer 30.10 in (1019.4 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 30 Jun 6:51 am EDT
Extended Forecast for

Cumberland Foreside ME

Extreme Heat Watch July 1, 12:00pm until July 3, 08:00pm
Click here for hazard details and duration
Extreme Heat Watch

  • Today

    Today: Mostly sunny, with a high near 83. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 83 °F

    Mostly Sunny

  • Tonight

    Tonight: A chance of showers, with thunderstorms also possible after 2am. Increasing clouds, with a low around 64. Southwest wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly before 7am. Mostly sunny and hot, with a high near 91. Heat index values as high as 98. Southwest wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 91 °F

    Chance
    Showers then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 72. Southwest wind around 5 mph becoming calm in the evening.

    Low: 72 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny and hot, with a high near 96. Light west wind becoming southwest 5 to 10 mph in the afternoon.

    High: 96 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 98.

    High: 98 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

  • Independence Day

    Independence Day: A 30 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 83. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Tonight
A chance of showers, with thunderstorms also possible after 2am. Increasing clouds, with a low around 64. Southwest wind around 5 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 and thunderstorms, mainly before 7am. Mostly sunny and hot, with a high near 91. Heat index values as high as 98. Southwest wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Mostly clear, with a low around 72. Southwest wind around 5 mph becoming calm in the evening.
Thursday
Mostly sunny and hot, with a high near 96. Light west wind becoming southwest 5 to 10 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 74.
Friday
Sunny and hot, with a high near 98.
Friday Night
Mostly clear, with a low around 70.
Independence Day
A 30 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 87.
Saturday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 66.
Sunday
Mostly sunny, with a high near 87.
Sunday Night
Partly cloudy, with a low around 63.
Monday
Partly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Cumberland Foreside ME
 43.77°N 70.21°W (Elev. 98 ft)
Last Update:
6:48 am EDT Jun 30, 2026
Forecast Valid:
7am EDT Jun 30, 2026-6pm EDT Jul 6, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation