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

Portland, Portland International Jetport (KPWM)

Lat: 43.64°NLon: 70.3°WElev: 72ft.

Overcast

45°F

7°C

Humidity 90%
Wind Speed N 7 mph
Barometer 29.61 in (1002.6 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 8 Nov 1:51 am EST
Extended Forecast for

Riverton ME

  • Overnight

    Overnight: Rain, mainly after 4am. Patchy fog. Low around 43. Northwest wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Rain and
    Patchy Fog

  • Sunday

    Sunday: Rain, mainly before noon. High near 52. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 52 °F

    Rain then
    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: Mostly clear during the evening, then mostly cloudy overnight, with a low around 34. West wind around 5 mph becoming calm in the evening.

    Low: 34 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 57. West wind 5 to 10 mph.

    High: 57 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 32. West wind around 5 mph becoming calm in the evening.

    Low: 32 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

Detailed Forecast

Overnight
Rain, mainly after 4am. Patchy fog. Low around 43. Northwest wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Rain, mainly before noon. High near 52. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Mostly clear during the evening, then mostly cloudy overnight, with a low around 34. West wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 57. West wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 32. West wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 55.
Tuesday Night
Mostly clear, with a low around 34.
Veterans Day
Mostly sunny, with a high near 55.
Wednesday Night
Partly cloudy, with a low around 28.
Thursday
Mostly sunny, with a high near 50.
Thursday Night
Mostly cloudy, with a low around 26.
Friday
A 30 percent chance of rain. Partly sunny, with a high near 48.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 49.
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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:
2:19 am EST Nov 8, 2026
Forecast Valid:
2am EST Nov 8, 2026-6pm EST Nov 14, 2026
 
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Additional Resources

Radar & Satellite Image

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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