Risks of Severe Thunderstorms and Excessive Rainfall in the Central U.S.; Fire Weather Concerns in Alaska and Southwest

An expansive storm system will bring widespread storms with a threat for flash flooding and severe weather to much of the central to eastern U.S. into early this week. Critical fire weather conditions are expected across interior Alaska this weekend. Elevated fire conditions also expected in the Southwest U.S.. Conditions will remain uncomfortably hot across the southern Plains and the Southeast. Read More >

Current conditions at

Greenville (KGNR)

Lat: 45.46°NLon: 69.55°WElev: 1394ft.

57°F

14°C

Humidity 90%
Wind Speed NW 10 G 20 mph
Barometer 29.68 in (1005.0 mb)
Dewpoint 54°F (12°C)
Visibility NA
Last update 21 Jun 1:56 am EDT
Extended Forecast for

Sebec ME

  • Overnight

    Overnight: Partly cloudy, with a low around 52. West wind around 5 mph.

    Low: 52 °F

    Partly Cloudy

  • Sunday

    Sunday: Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 2pm.  High near 75. West wind around 5 mph becoming calm  in the morning.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Scattered
    Showers then
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 10pm.  Patchy fog after 9pm.  Otherwise, mostly cloudy, with a low around 52. Calm wind.  Chance of precipitation is 30%.

    Low: 52 °F

    Chance
    Showers and
    Patchy Fog
    then Patchy
    Fog

  • Monday

    Monday: A slight chance of showers between noon and 2pm, then a chance of showers and thunderstorms after 2pm.  Areas of fog before 9am.  Otherwise, mostly cloudy, with a high near 74. 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: 74 °F

    Areas Fog
    then Chance
    Showers

  • Monday Night

    Monday Night: Rain, mainly after 2am.  Patchy fog after 10pm. Low around 55. South wind 3 to 5 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 55 °F

    Chance Rain
    and Patchy
    Fog then Rain
    and Patchy
    Fog

  • Tuesday

    Tuesday: Rain, mainly before 8am.  Areas of fog before noon. High near 72. North wind around 7 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 72 °F

    Rain and
    Areas Fog
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: Patchy fog after midnight.  Otherwise, partly cloudy, with a low around 56. Northwest wind around 6 mph.

    Low: 56 °F

    Partly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: A slight chance of showers after 11am.  Mostly sunny, with a high near 77. Chance of precipitation is 20%.

    High: 77 °F

    Slight Chance
    Showers

  • Wednesday Night

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

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 52. West wind around 5 mph.
Sunday
Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 75. West wind around 5 mph becoming calm in the morning. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 10pm. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 52. Calm wind. Chance of precipitation is 30%.
Monday
A slight chance of showers between noon and 2pm, then a chance of showers and thunderstorms after 2pm. Areas of fog before 9am. Otherwise, mostly cloudy, with a high near 74. 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
Rain, mainly after 2am. Patchy fog after 10pm. Low around 55. South wind 3 to 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Rain, mainly before 8am. Areas of fog before noon. High near 72. North wind around 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Patchy fog after midnight. Otherwise, partly cloudy, with a low around 56. Northwest wind around 6 mph.
Wednesday
A slight chance of showers after 11am. Mostly sunny, with a high near 77. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 55.
Thursday
A chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 80. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 74. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
Saturday
Showers and thunderstorms likely. Partly sunny, with a high near 79. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Sebec ME
 45.28°N 69.1°W (Elev. 397 ft)
2:29 am EDT Jun 21, 2026
2am EDT Jun 21, 2026-6pm EDT Jun 27, 2026
 
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