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.

Patches Fog

54°F

12°C

Humidity 97%
Wind Speed Calm
Barometer 29.92 in (1013.2 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 4 Sep 6:51 am EDT
Extended Forecast for

Riverton ME

  • Today

    Today: Areas of fog before 10am. Otherwise, sunny, with a high near 78. Light and variable wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

    High: 78 °F

    Areas Fog
    then Sunny

  • Tonight

    Tonight: A 30 percent chance of showers after 4am. Patchy fog after 2am. Otherwise, increasing clouds, with a low around 58. South wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 58 °F

    Partly Cloudy
    then Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: A 30 percent chance of showers, mainly before 8am. Patchy fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 79. South wind 10 to 15 mph, with gusts as high as 25 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 79 °F

    Chance
    Showers and
    Patchy Fog

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers after 1pm. Mostly sunny, with a high near 85. South wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 85 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely. Mostly cloudy, with a low around 55. Chance of precipitation is 70%.

    Low: 55 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers likely, mainly before 9am. Partly sunny, with a high near 72. Chance of precipitation is 60%.

    High: 72 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

Detailed Forecast

Today
Areas of fog before 10am. Otherwise, sunny, with a high near 78. Light and variable wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Tonight
A 30 percent chance of showers after 4am. Patchy fog after 2am. Otherwise, increasing clouds, with a low around 58. South wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.
Friday
A 30 percent chance of showers, mainly before 8am. Patchy fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 79. South wind 10 to 15 mph, with gusts as high as 25 mph. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Partly cloudy, with a low around 62. South wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday
A 40 percent chance of showers after 1pm. Mostly sunny, with a high near 85. South wind 10 to 15 mph, with gusts as high as 30 mph.
Saturday Night
Showers likely. Mostly cloudy, with a low around 55. Chance of precipitation is 70%.
Sunday
Showers likely, mainly before 9am. Partly sunny, with a high near 72. Chance of precipitation is 60%.
Sunday Night
Mostly cloudy, with a low around 51.
Monday
Mostly sunny, with a high near 75.
Monday Night
Mostly clear, with a low around 47.
Tuesday
Sunny, with a high near 74.
Tuesday Night
Partly cloudy, with a low around 48.
Wednesday
Sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Riverton ME
 43.69°N 70.32°W (Elev. 75 ft)
Last Update:
2:07 am EDT Sep 4, 2025
Forecast Valid:
7am EDT Sep 4, 2025-6pm EDT Sep 10, 2025
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation