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.

64°F

18°C

Humidity 81%
Wind Speed Calm
Barometer NA
Dewpoint 57°F (14°C)
Visibility NA
Last update 19 Aug 9:20 am EDT
Extended Forecast for

6 Miles SSE Allagash State Wilderness Waterway ME

  • Today

    Today: Scattered showers and thunderstorms, mainly after 5pm. Mostly cloudy, with a high near 79. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 30%.

    High: 79 °F

    Partly Sunny
    then
    Scattered
    Showers

  • Tonight

    Tonight: Scattered showers and thunderstorms before 8pm, then isolated showers between 8pm and 10pm. Mostly cloudy, with a low around 53. Calm wind. Chance of precipitation is 30%.

    Low: 53 °F

    Scattered
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 76. Calm wind becoming west around 6 mph in the morning.

    High: 76 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Cloudy during the early evening, then gradual clearing, with a low around 44. Calm wind.

    Low: 44 °F

    Gradual
    Clearing

  • Friday

    Friday: Sunny, with a high near 75. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 75 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 44. Calm wind.

    Low: 44 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 78. Calm wind becoming south around 6 mph in the afternoon.

    High: 78 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers after 3am. Mostly cloudy, with a low around 51. Chance of precipitation is 20%.

    Low: 51 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 73. Chance of precipitation is 50%.

    High: 73 °F

    Chance
    Showers

Detailed Forecast

Today
Scattered showers and thunderstorms, mainly after 5pm. Mostly cloudy, with a high near 79. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 30%.
Tonight
Scattered showers and thunderstorms before 8pm, then isolated showers between 8pm and 10pm. Mostly cloudy, with a low around 53. Calm wind. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 76. Calm wind becoming west around 6 mph in the morning.
Thursday Night
Cloudy during the early evening, then gradual clearing, with a low around 44. Calm wind.
Friday
Sunny, with a high near 75. Calm wind becoming northwest around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 44. Calm wind.
Saturday
Mostly sunny, with a high near 78. Calm wind becoming south around 6 mph in the afternoon.
Saturday Night
A slight chance of showers after 3am. Mostly cloudy, with a low around 51. Chance of precipitation is 20%.
Sunday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 73. Chance of precipitation is 50%.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 74. Chance of precipitation is 50%.
Monday Night
Mostly cloudy, with a low around 49.
Tuesday
A slight chance of showers. Partly sunny, with a high near 73. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SSE Allagash State Wilderness Waterway ME
 46.36°N 69.27°W (Elev. 1171 ft)
Last Update:
4:02 am EDT Aug 19, 2026
Forecast Valid:
9am EDT Aug 19, 2026-6pm EDT Aug 25, 2026
 
Forecast Discussion
 
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Additional Resources

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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