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Hazardous Weather Conditions

Current conditions at

Greenville (KGNR)

Lat: 45.46°NLon: 69.55°WElev: 1394ft.

39°F

4°C

Humidity 65%
Wind Speed NW 9 G 24 mph
Barometer 30.08 in (1019.1 mb)
Dewpoint 28°F (-2°C)
Visibility NA
Wind Chill33°F (1°C)
Last update 21 May 5:56 am EDT
Extended Forecast for

3 Miles W Katahdin Iron Works State Park ME

Frost Advisory May 22, 12:00am until May 22, 07:00am
Click here for hazard details and duration
Frost Advisory

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 56. Northwest wind 8 to 11 mph, with gusts as high as 23 mph.

    High: 56 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 36. Northwest wind 3 to 7 mph.

    Low: 36 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 63. Northwest wind 5 to 13 mph, with gusts as high as 28 mph.

    High: 63 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 38. Northwest wind 3 to 5 mph.

    Low: 38 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 66. Calm wind.

    High: 66 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 60. Calm wind becoming south 5 to 8 mph in the morning.

    High: 60 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of showers, mainly after midnight. Mostly cloudy, with a low around 42. Chance of precipitation is 40%.

    Low: 42 °F

    Chance
    Showers

  • Memorial Day

    Memorial Day: Showers likely, mainly before 2pm. Mostly cloudy, with a high near 58. Chance of precipitation is 70%.

    High: 58 °F

    Showers
    Likely

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 56. Northwest wind 8 to 11 mph, with gusts as high as 23 mph.
Tonight
Mostly clear, with a low around 36. Northwest wind 3 to 7 mph.
Friday
Sunny, with a high near 63. Northwest wind 5 to 13 mph, with gusts as high as 28 mph.
Friday Night
Mostly clear, with a low around 38. Northwest wind 3 to 5 mph.
Saturday
Mostly sunny, with a high near 66. Calm wind.
Saturday Night
Mostly cloudy, with a low around 42. Calm wind.
Sunday
Partly sunny, with a high near 60. Calm wind becoming south 5 to 8 mph in the morning.
Sunday Night
A chance of showers, mainly after midnight. Mostly cloudy, with a low around 42. Chance of precipitation is 40%.
Memorial Day
Showers likely, mainly before 2pm. Mostly cloudy, with a high near 58. Chance of precipitation is 70%.
Monday Night
A chance of showers, mainly before 9pm. Mostly cloudy, with a low around 46. Chance of precipitation is 30%.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 71. Chance of precipitation is 20%.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 49. Chance of precipitation is 30%.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 68. Chance of precipitation is 20%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Katahdin Iron Works State Park ME
 45.44°N 69.21°W (Elev. 899 ft)
Last Update:
4:02 am EDT May 21, 2026
Forecast Valid:
6am EDT May 21, 2026-6pm EDT May 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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