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

Prolonged, Intense Heat Wave; Excessive Rainfall in the Southern Rockies; Severe Weather in the Central US

Extremely dangerous heat will persist from the Midwest to the East Coast into late this week. Monsoonal moisture may produce excessive rain and considerable flash flooding and debris flows, especially near recent burn scar areas in New Mexico and west Texas. Severe storms are possible this evening from the southern/central Plains into the Great Lakes, and the northern/central Plains Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

Greenville (KGNR)

Lat: 45.46°NLon: 69.55°WElev: 1394ft.

71°F

22°C

Humidity 87%
Wind Speed Calm
Barometer 29.94 in (1013.2 mb)
Dewpoint 67°F (19°C)
Visibility NA
Last update 24 Jun 3:56 am EDT
Extended Forecast for

2 Miles SSE Lily Bay State Park ME

  • Today

    Today: Mostly sunny, with a high near 86. Heat index values as high as 91. Northwest wind 10 to 14 mph, with gusts as high as 25 mph.

    High: 86 °F

    Mostly Sunny

  • Tonight

    Tonight: Isolated showers and thunderstorms before 9pm. Partly cloudy, with a low around 64. Northwest wind 7 to 9 mph. Chance of precipitation is 20%.

    Low: 64 °F

    Isolated
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 76. Northwest wind 9 to 11 mph, with gusts as high as 22 mph.

    High: 76 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 50. North wind 6 to 9 mph.

    Low: 50 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 68. Northwest wind around 6 mph.

    High: 68 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 50. Northwest wind 3 to 5 mph.

    Low: 50 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 69. Light and variable wind.

    High: 69 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of showers, mainly after 10pm. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.

    Low: 53 °F

    Chance
    Showers

  • Saturday

    Saturday: Showers likely, mainly after 9am. Mostly cloudy, with a high near 60. Chance of precipitation is 60%.

    High: 60 °F

    Showers
    Likely

Detailed Forecast

Today
Mostly sunny, with a high near 86. Heat index values as high as 91. Northwest wind 10 to 14 mph, with gusts as high as 25 mph.
Tonight
Isolated showers and thunderstorms before 9pm. Partly cloudy, with a low around 64. Northwest wind 7 to 9 mph. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 76. Northwest wind 9 to 11 mph, with gusts as high as 22 mph.
Wednesday Night
Partly cloudy, with a low around 50. North wind 6 to 9 mph.
Thursday
Mostly sunny, with a high near 68. Northwest wind around 6 mph.
Thursday Night
Partly cloudy, with a low around 50. Northwest wind 3 to 5 mph.
Friday
Partly sunny, with a high near 69. Light and variable wind.
Friday Night
A chance of showers, mainly after 10pm. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.
Saturday
Showers likely, mainly after 9am. Mostly cloudy, with a high near 60. Chance of precipitation is 60%.
Saturday Night
Showers likely, mainly before 9pm. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
Sunday
A chance of showers. Partly sunny, with a high near 69. Chance of precipitation is 30%.
Sunday Night
Mostly cloudy, with a low around 60.
Monday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 77. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Lily Bay State Park ME
 45.55°N 69.52°W (Elev. 1099 ft)
Last Update:
3:27 am EDT Jun 24, 2025
Forecast Valid:
4am EDT Jun 24, 2025-6pm EDT Jun 30, 2025
 
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