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.

A Few Clouds

60°F

16°C

Humidity 38%
Wind Speed NW 13 G 26 mph
Barometer 29.90 in (1012.6 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 6 Oct 2:51 pm EDT
Extended Forecast for

Riverton ME

Frost Advisory October 7, 12:00am until October 7, 08:00am
Click here for hazard details and duration
Frost Advisory

  • Tonight

    Tonight: Areas of frost after 2am. Otherwise, mostly clear, with a low around 33. Northwest wind 5 to 10 mph becoming light southwest in the evening. Winds could gust as high as 20 mph.

    Low: 33 °F

    Clear then
    Areas Frost

  • Wednesday

    Wednesday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 62. Light southwest wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

    High: 62 °F

    Frost then
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 48. Southwest wind 5 to 10 mph.

    Low: 48 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 72. Southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 72 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 45. West wind around 5 mph.

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Tonight
Areas of frost after 2am. Otherwise, mostly clear, with a low around 33. Northwest wind 5 to 10 mph becoming light southwest in the evening. Winds could gust as high as 20 mph.
Wednesday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 62. Light southwest wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 48. Southwest wind 5 to 10 mph.
Thursday
Sunny, with a high near 72. Southwest wind around 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 45. West wind around 5 mph.
Friday
Sunny, with a high near 65.
Friday Night
Mostly clear, with a low around 41.
Saturday
Sunny, with a high near 64.
Saturday Night
Mostly clear, with a low around 43.
Sunday
Mostly sunny, with a high near 71.
Sunday Night
Partly cloudy, with a low around 53.
Columbus Day
A 30 percent chance of showers. Partly sunny, with a high near 71.
Monday Night
Mostly cloudy, with a low around 48.
Tuesday
Partly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Riverton ME
 43.69°N 70.32°W (Elev. 75 ft)
Last Update:
2:28 pm EDT Oct 6, 2026
Forecast Valid:
3pm EDT Oct 6, 2026-6pm EDT Oct 13, 2026
 
Forecast Discussion
 
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Additional Resources

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