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 43%
Wind Speed Vrbl 7 mph
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Last update 1 Sep 11:20 am EDT
Extended Forecast for

5 Miles SW Allagash State Wilderness Waterway ME

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 72. Calm wind.

    High: 72 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Increasing clouds, with a high near 71. Calm wind becoming southeast 5 to 8 mph in the morning.

    High: 71 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after 5am. Cloudy, with a low around 51. South wind 3 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 51 °F

    Slight Chance
    Rain then
    Rain Likely

  • Thursday

    Thursday: Rain, with thunderstorms also possible after 1pm. High near 67. Southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 67 °F

    Rain

  • Thursday Night

    Thursday Night: Rain likely and possibly a thunderstorm before 10pm, then a chance of rain between 10pm and 3am, then a chance of showers after 3am. Cloudy, with a low around 52. Light and variable wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 52 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 69. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 80%.

    High: 69 °F

    Chance
    Showers then
    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.

    Low: 46 °F

    Showers
    Likely

  • Saturday

    Saturday: A chance of showers, mainly before noon. Partly sunny, with a high near 69. Chance of precipitation is 30%.

    High: 69 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 72. Calm wind.
Tonight
Mostly cloudy, with a low around 44. Calm wind.
Wednesday
Increasing clouds, with a high near 71. Calm wind becoming southeast 5 to 8 mph in the morning.
Wednesday Night
Rain likely, mainly after 5am. Cloudy, with a low around 51. South wind 3 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain, with thunderstorms also possible after 1pm. High near 67. Southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Rain likely and possibly a thunderstorm before 10pm, then a chance of rain between 10pm and 3am, then a chance of showers after 3am. Cloudy, with a low around 52. Light and variable wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 69. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 80%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.
Saturday
A chance of showers, mainly before noon. Partly sunny, with a high near 69. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
Sunny, with a high near 73.
Sunday Night
Partly cloudy, with a low around 44.
Labor Day
A slight chance of showers. Mostly sunny, with a high near 75. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Allagash State Wilderness Waterway ME
 46.4°N 69.39°W (Elev. 919 ft)
Last Update:
4:02 am EDT Sep 1, 2026
Forecast Valid:
12pm EDT Sep 1, 2026-6pm EDT Sep 7, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation