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.

Mostly Cloudy

68°F

20°C

Humidity 93%
Wind Speed Calm
Barometer 30.04 in (1017.1 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 23 Jun 5:51 am EDT
Extended Forecast for

Portland International Jetport ME

Extreme Heat Watch June 24, 11:00am until June 24, 08:00pm
Click here for hazard details and duration
Extreme Heat Watch

  • Today

    Today: Mostly sunny, with a high near 79. Light and variable wind becoming south 5 to 10 mph in the morning.

    High: 79 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 66. South wind 5 to 10 mph.

    Low: 66 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny and hot, with a high near 94. Heat index values as high as 99. West wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 94 °F

    Hot

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 71. Northwest wind around 5 mph.

    Low: 71 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 85. North wind around 5 mph becoming east in the afternoon.

    High: 85 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers after 2am. Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers. Partly sunny, with a high near 71.

    High: 71 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of showers after 2pm. Mostly cloudy, with a high near 69.

    High: 69 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 79. Light and variable wind becoming south 5 to 10 mph in the morning.
Tonight
Partly cloudy, with a low around 66. South wind 5 to 10 mph.
Tuesday
Sunny and hot, with a high near 94. Heat index values as high as 99. West wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 71. Northwest wind around 5 mph.
Wednesday
Mostly sunny, with a high near 85. North wind around 5 mph becoming east in the afternoon.
Wednesday Night
A 30 percent chance of showers after 2am. Partly cloudy, with a low around 61.
Thursday
A 30 percent chance of showers. Partly sunny, with a high near 71.
Thursday Night
Mostly cloudy, with a low around 56.
Friday
A 30 percent chance of showers after 2pm. Mostly cloudy, with a high near 69.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 57.
Saturday
A 50 percent chance of showers. Mostly cloudy, with a high near 69.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 58.
Sunday
Partly sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portland International Jetport ME
 43.65°N 70.3°W (Elev. 52 ft)
Last Update:
6:25 am EDT Jun 23, 2025
Forecast Valid:
6am EDT Jun 23, 2025-6pm EDT Jun 29, 2025
 
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