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

Risks of Severe Thunderstorms and Excessive Rainfall; Fire Weather Concerns and Record Warmth

Severe thunderstorms and flash flooding risks increase across the center of the nation today. Meanwhile, ongoing thunderstorms and flash flooding will linger along the Gulf Coast states through the evening. The Great Basin and Intermountain West, warm temperatures and dry fuels with dry lightning may enhance fire weather potential. In addition, across interior Alaska, Red Flag Warning are posted. Read More >

Current conditions at

Greenville (KGNR)

Lat: 45.46°NLon: 69.55°WElev: 1394ft.

55°F

13°C

Humidity 87%
Wind Speed NW 14 G 26 mph
Barometer 29.49 in (998.8 mb)
Dewpoint 51°F (11°C)
Visibility NA
Wind Chill51°F (11°C)
Last update 20 Jun 11:56 am EDT
Extended Forecast for

Sebec Lake ME

  • This Afternoon

    This Afternoon: Isolated showers before 1pm, then isolated showers after 5pm. Partly sunny, with a high near 71. Northwest wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    High: 71 °F

    Isolated
    Showers

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 52. Light northwest wind.

    Low: 52 °F

    Partly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Showers and thunderstorms before 4pm, then showers and possibly a thunderstorm, mainly after 4pm. Patchy fog before 8am. High near 77. Light west wind. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Slight Chance
    T-storms and
    Patchy Fog
    then Showers

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely before 10pm, then a slight chance of showers between 10pm and 11pm. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 52. 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: 52 °F

    Showers
    Likely and
    Patchy Fog
    then Patchy
    Fog

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 3pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 78. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Chance
    Showers and
    Patchy Fog

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm, then showers after 8pm. Low around 53. Light south wind. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 53 °F

    Showers

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 76. Northeast wind 3 to 7 mph. Chance of precipitation is 40%.

    High: 76 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers between noon and 2pm, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 81. Chance of precipitation is 20%.

    High: 81 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

This Afternoon
Isolated showers before 1pm, then isolated showers after 5pm. Partly sunny, with a high near 71. Northwest wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Tonight
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 52. Light northwest wind.
Sunday
Showers and thunderstorms before 4pm, then showers and possibly a thunderstorm, mainly after 4pm. Patchy fog before 8am. High near 77. Light west wind. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers and thunderstorms likely before 10pm, then a slight chance of showers between 10pm and 11pm. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 52. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A chance of showers, with thunderstorms also possible after 3pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 78. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 50%. 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, then showers after 8pm. Low around 53. Light south wind. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 76. Northeast wind 3 to 7 mph. Chance of precipitation is 40%.
Tuesday Night
Partly cloudy, with a low around 55.
Wednesday
A slight chance of showers between noon and 2pm, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 81. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 55.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.
Friday
Showers likely. Mostly cloudy, with a high near 75. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sebec Lake ME
 45.31°N 69.34°W (Elev. 397 ft)
Last Update:
10:21 am EDT Jun 20, 2026
Forecast Valid:
12pm EDT Jun 20, 2026-6pm EDT Jun 26, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation