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

Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

Clayton Lake (K40B)

Lat: 46.62°NLon: 69.53°WElev: 1030ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

10 Miles E Allagash State Wilderness Waterway ME

  • Overnight

    Overnight: Partly cloudy, with a low around -3. Wind chill values as low as -19. Northwest wind 11 to 15 mph, with gusts as high as 26 mph.

    Low: -3 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny and cold, with a high near 8. Wind chill values as low as -19. Northwest wind 6 to 9 mph.

    High: 8 °F

    Cold

  • Friday Night

    Friday Night: Partly cloudy, with a low around -7. Light north wind.

    Low: -7 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 13. Wind chill values as low as -15. Northwest wind 3 to 6 mph.

    High: 13 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around -2. Northwest wind around 7 mph.

    Low: -2 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 23. Northwest wind around 7 mph.

    High: 23 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 6. Light and variable wind.

    Low: 6 °F

    Mostly Cloudy

  • Monday

    Monday: Snow, mainly after 2pm. High near 26. Chance of precipitation is 80%.

    High: 26 °F

    Chance Snow
    then Snow

  • Monday Night

    Monday Night: Snow, mainly before 2am. Low around 13. Chance of precipitation is 80%.

    Low: 13 °F

    Snow

Detailed Forecast

Overnight
Partly cloudy, with a low around -3. Wind chill values as low as -19. Northwest wind 11 to 15 mph, with gusts as high as 26 mph.
Friday
Mostly sunny and cold, with a high near 8. Wind chill values as low as -19. Northwest wind 6 to 9 mph.
Friday Night
Partly cloudy, with a low around -7. Light north wind.
Saturday
Sunny, with a high near 13. Wind chill values as low as -15. Northwest wind 3 to 6 mph.
Saturday Night
Clear, with a low around -2. Northwest wind around 7 mph.
Sunday
Sunny, with a high near 23. Northwest wind around 7 mph.
Sunday Night
Mostly cloudy, with a low around 6. Light and variable wind.
Monday
Snow, mainly after 2pm. High near 26. Chance of precipitation is 80%.
Monday Night
Snow, mainly before 2am. Low around 13. Chance of precipitation is 80%.
Tuesday
A chance of snow, mainly before 10am. Mostly cloudy, with a high near 21. Chance of precipitation is 30%.
Tuesday Night
A slight chance of snow. Mostly cloudy, with a low around 1. Chance of precipitation is 20%.
Wednesday
A slight chance of snow. Partly sunny, with a high near 12. Chance of precipitation is 20%.
Wednesday Night
A slight chance of snow. Mostly cloudy, with a low around -5. Chance of precipitation is 20%.
New Year's Day
Mostly sunny and cold, with a high near 6.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles E Allagash State Wilderness Waterway ME
 46.42°N 69.1°W (Elev. 1299 ft)
Last Update:
12:44 am EST Dec 26, 2025
Forecast Valid:
12am EST Dec 26, 2025-6pm EST Jan 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation