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.

72°F

22°C

Humidity 42%
Wind Speed Vrbl 3 G 14 mph
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Last update 22 Aug 12:20 pm EDT
Extended Forecast for

11 Miles SW Allagash State Wilderness Waterway ME

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 76. Southeast wind around 5 mph.

    High: 76 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of rain. Patchy fog before 4am, then areas of fog after 5am. Otherwise, mostly cloudy, with a low around 55. Light east wind. Chance of precipitation is 20%.

    Low: 55 °F

    Slight Chance
    Rain and
    Areas Fog

  • Sunday

    Sunday: Isolated showers before 4pm. Areas of fog before 1pm. Otherwise, cloudy, with a high near 71. East wind around 6 mph. Chance of precipitation is 20%.

    High: 71 °F

    Isolated
    Showers and
    Areas Fog

  • Sunday Night

    Sunday Night: Showers, mainly after 9pm. Patchy fog between 7pm and 9pm. Low around 59. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 59 °F

    Showers and
    Patchy Fog

  • Monday

    Monday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 77. South wind 3 to 7 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Showers
    Likely and
    Patchy Fog

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 10pm, then a slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 50. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 50 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 3pm, then showers likely and possibly a thunderstorm after 3pm. Partly sunny, with a high near 72. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 60%.

    High: 72 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Mostly cloudy, with a low around 50. Chance of precipitation is 40%.

    Low: 50 °F

    Chance
    Showers then
    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers after 1pm. Partly sunny, with a high near 75. Chance of precipitation is 20%.

    High: 75 °F

    Partly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 76. Southeast wind around 5 mph.
Tonight
A slight chance of rain. Patchy fog before 4am, then areas of fog after 5am. Otherwise, mostly cloudy, with a low around 55. Light east wind. Chance of precipitation is 20%.
Sunday
Isolated showers before 4pm. Areas of fog before 1pm. Otherwise, cloudy, with a high near 71. East wind around 6 mph. Chance of precipitation is 20%.
Sunday Night
Showers, mainly after 9pm. Patchy fog between 7pm and 9pm. Low around 59. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 77. South wind 3 to 7 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers likely and possibly a thunderstorm before 10pm, then a slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 50. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 3pm, then showers likely and possibly a thunderstorm after 3pm. Partly sunny, with a high near 72. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 60%.
Tuesday Night
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Mostly cloudy, with a low around 50. Chance of precipitation is 40%.
Wednesday
A slight chance of showers after 1pm. Partly sunny, with a high near 75. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 51.
Thursday
Sunny, with a high near 79.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 55. Chance of precipitation is 20%.
Friday
Showers likely. Partly sunny, with a high near 79. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles SW Allagash State Wilderness Waterway ME
 46.32°N 69.44°W (Elev. 1099 ft)
Last Update:
12:10 pm EDT Aug 22, 2026
Forecast Valid:
12pm EDT Aug 22, 2026-6pm EDT Aug 28, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation