National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Millinocket, Millinocket Municipal Airport (KMLT)

Lat: 45.65°NLon: 68.69°WElev: 407ft.

Mostly Cloudy

81°F

27°C

Humidity 65%
Wind Speed Calm
Barometer 29.95 in (1014.5 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 8 Aug 11:53 am EDT
Extended Forecast for

Grand Lake Stream ME

  • This Afternoon

    This Afternoon: Showers likely and possibly a thunderstorm before 2pm, then scattered showers and thunderstorms after 2pm. Mostly cloudy, with a high near 77. Calm wind. 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

  • Tonight

    Tonight: A chance of showers and thunderstorms before 11pm, then a slight chance of showers. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 64. Calm wind. Chance of precipitation is 40%.

    Low: 64 °F

    Chance
    T-storms and
    Patchy Fog

  • Sunday

    Sunday: A chance of showers and thunderstorms, mainly after 4pm. Patchy dense fog before 10am. Otherwise, partly sunny, with a high near 85. Heat index values as high as 88. Calm wind. Chance of precipitation is 30%.

    High: 85 °F

    Patchy Dense
    Fog then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 1am. Mostly cloudy during the early evening, then becoming mostly clear, with a low around 65. Light west wind. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 83. West wind 3 to 5 mph.

    High: 83 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of showers between 10pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 65. Light south wind. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 80. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 30%.

    High: 80 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 60. Chance of precipitation is 30%.

    Low: 60 °F

    Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm before 2pm, then scattered showers and thunderstorms after 2pm. Mostly cloudy, with a high near 77. Calm wind. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms before 11pm, then a slight chance of showers. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 64. Calm wind. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms, mainly after 4pm. Patchy dense fog before 10am. Otherwise, partly sunny, with a high near 85. Heat index values as high as 88. Calm wind. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 1am. Mostly cloudy during the early evening, then becoming mostly clear, with a low around 65. Light west wind. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 83. West wind 3 to 5 mph.
Monday Night
A slight chance of showers between 10pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 65. Light south wind. Chance of precipitation is 30%.
Tuesday
A chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 80. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 60. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 78. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Chance of precipitation is 40%.
Friday
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:
Grand Lake Stream ME
 45.2°N 67.8°W (Elev. 299 ft)
Last Update:
6:09 am EDT Aug 8, 2026
Forecast Valid:
12pm EDT Aug 8, 2026-6pm EDT Aug 14, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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