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.

67°F

19°C

Humidity 55%
Wind Speed Calm
Barometer NA
Dewpoint 50°F (10°C)
Visibility NA
Last update 22 Aug 8:20 pm EDT
Extended Forecast for

16 Miles SW Allagash State Wilderness Waterway ME

  • Tonight

    Tonight: A slight chance of showers after 10pm. Patchy fog after 2am. Otherwise, increasing clouds, with a low around 55. East wind 3 to 5 mph. Chance of precipitation is 20%.

    Low: 55 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: A chance of showers, mainly after 9am. Areas of fog before 11am. Otherwise, cloudy, with a high near 68. East wind around 6 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 68 °F

    Chance
    Showers and
    Areas Fog

  • Sunday Night

    Sunday Night: A slight chance of showers before 7pm, then scattered showers after 10pm. Areas of fog. Otherwise, cloudy, with a low around 60. South wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 60 °F

    Scattered
    Showers and
    Areas Fog

  • Monday

    Monday: Showers likely, with thunderstorms also possible after 2pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 72. South wind 3 to 6 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 72 °F

    Showers
    Likely and
    Patchy Fog

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 1am. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 51. Calm wind. Chance of precipitation is 30%.

    Low: 51 °F

    Chance
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Patchy fog before 7am. Otherwise, partly sunny, with a high near 65. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 65 °F

    Chance
    Showers and
    Patchy Fog
    then Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and midnight. Mostly cloudy, with a low around 51. Calm wind becoming west around 5 mph after midnight. Chance of precipitation is 30%.

    Low: 51 °F

    Chance
    Showers then
    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers between 11am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 74. Chance of precipitation is 20%.

    High: 74 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of showers after 10pm. Patchy fog after 2am. Otherwise, increasing clouds, with a low around 55. East wind 3 to 5 mph. Chance of precipitation is 20%.
Sunday
A chance of showers, mainly after 9am. Areas of fog before 11am. Otherwise, cloudy, with a high near 68. East wind around 6 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A slight chance of showers before 7pm, then scattered showers after 10pm. Areas of fog. Otherwise, cloudy, with a low around 60. South wind 3 to 5 mph. Chance of precipitation is 30%.
Monday
Showers likely, with thunderstorms also possible after 2pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 72. South wind 3 to 6 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
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 1am. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 51. Calm wind. Chance of precipitation is 30%.
Tuesday
A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Patchy fog before 7am. Otherwise, partly sunny, with a high near 65. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and midnight. Mostly cloudy, with a low around 51. Calm wind becoming west around 5 mph after midnight. Chance of precipitation is 30%.
Wednesday
A slight chance of showers between 11am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 74. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Mostly cloudy, with a low around 56.
Friday
Showers and thunderstorms likely. Partly sunny, with a high near 77. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.
Saturday
A chance of showers. Partly sunny, with a high near 74. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles SW Allagash State Wilderness Waterway ME
 46.29°N 69.57°W (Elev. 1440 ft)
Last Update:
7:22 pm EDT Aug 22, 2026
Forecast Valid:
8pm EDT Aug 22, 2026-6pm EDT Aug 29, 2026
 
Forecast Discussion
 
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