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.

62°F

17°C

Humidity 62%
Wind Speed Vrbl 5 mph
Barometer NA
Dewpoint 49°F (9°C)
Visibility NA
Last update 15 Aug 9:20 am EDT
Extended Forecast for

19 Miles SW Allagash State Wilderness Waterway ME

  • Today

    Today: Mostly sunny, with a high near 73. Northwest wind 3 to 6 mph.

    High: 73 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 73. Light southwest wind.

    High: 73 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Rain likely, mainly after 4am. Patchy fog after 5am. Otherwise, cloudy, with a low around 54. Calm wind becoming south around 6 mph after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 54 °F

    Slight Chance
    Rain then
    Rain Likely
    and Patchy
    Fog

  • Monday

    Monday: Rain, with thunderstorms also possible after 2pm. Patchy fog before 8am. High near 66. South wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 66 °F

    Rain and
    Patchy Fog

  • Monday Night

    Monday Night: Rain likely and possibly a thunderstorm before 9pm, then a slight chance of rain between 9pm and 11pm. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 53. Light and variable wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 53 °F

    Rain Likely
    and Patchy
    Fog then
    Patchy Fog

  • Tuesday

    Tuesday: Mostly sunny, with a high near 73. Calm wind.

    High: 73 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers after 2pm. Mostly sunny, with a high near 78. Chance of precipitation is 20%.

    High: 78 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 73. Northwest wind 3 to 6 mph.
Tonight
Mostly clear, with a low around 47. Calm wind.
Sunday
Increasing clouds, with a high near 73. Light southwest wind.
Sunday Night
Rain likely, mainly after 4am. Patchy fog after 5am. Otherwise, cloudy, with a low around 54. Calm wind becoming south around 6 mph after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Rain, with thunderstorms also possible after 2pm. Patchy fog before 8am. High near 66. South wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Rain likely and possibly a thunderstorm before 9pm, then a slight chance of rain between 9pm and 11pm. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 53. Light and variable wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Mostly sunny, with a high near 73. Calm wind.
Tuesday Night
Partly cloudy, with a low around 54.
Wednesday
A slight chance of showers after 2pm. Mostly sunny, with a high near 78. Chance of precipitation is 20%.
Wednesday Night
Showers likely, mainly after 5am. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
Thursday
Showers and thunderstorms likely. Partly sunny, with a high near 72. Chance of precipitation is 60%.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 49. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
19 Miles SW Allagash State Wilderness Waterway ME
 46.3°N 69.63°W (Elev. 1427 ft)
Last Update:
7:36 am EDT Aug 15, 2026
Forecast Valid:
9am EDT Aug 15, 2026-6pm EDT Aug 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation