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

Clayton Lake (K40B)

Lat: 46.62°NLon: 69.53°WElev: 1030ft.

83°F

28°C

Humidity 56%
Wind Speed Vrbl 5 mph
Barometer NA
Dewpoint 65°F (18°C)
Visibility NA
Heat Index85°F (29°C)
Last update 7 Aug 11:20 am EDT
Extended Forecast for

15 Miles SW Allagash State Wilderness Waterway ME

  • Today

    Today: Mostly sunny and hot, with a high near 88. West wind around 6 mph.

    High: 88 °F

    Hot

  • Tonight

    Tonight: Increasing clouds, with a low around 63. Calm wind.

    Low: 63 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A chance of showers and thunderstorms, mainly after 2pm. Mostly cloudy, with a high near 83. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 40%.

    High: 83 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Calm wind. Chance of precipitation is 40%.

    Low: 64 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 80. Light southwest wind becoming west 5 to 9 mph in the morning. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 59. West wind around 5 mph becoming calm in the evening.

    Low: 59 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 80. West wind 3 to 8 mph. Chance of precipitation is 20%.

    High: 80 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Chance of precipitation is 40%.

    Low: 58 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 78. Chance of precipitation is 40%.

    High: 78 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly sunny and hot, with a high near 88. West wind around 6 mph.
Tonight
Increasing clouds, with a low around 63. Calm wind.
Saturday
A chance of showers and thunderstorms, mainly after 2pm. Mostly cloudy, with a high near 83. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Calm wind. Chance of precipitation is 40%.
Sunday
A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 80. Light southwest wind becoming west 5 to 9 mph in the morning. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Mostly clear, with a low around 59. West wind around 5 mph becoming calm in the evening.
Monday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 80. West wind 3 to 8 mph. Chance of precipitation is 20%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Chance of precipitation is 40%.
Tuesday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 78. Chance of precipitation is 40%.
Tuesday Night
A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 10pm. Partly cloudy, with a low around 55. Chance of precipitation is 20%.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 78. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
Showers and thunderstorms likely. Partly sunny, with a high near 76. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles SW Allagash State Wilderness Waterway ME
 46.31°N 69.57°W (Elev. 1099 ft)
Last Update:
11:25 am EDT Aug 7, 2026
Forecast Valid:
11am EDT Aug 7, 2026-6pm EDT Aug 13, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation