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

Greenville (KGNR)

Lat: 45.46°NLon: 69.55°WElev: 1394ft.

77°F

25°C

Humidity 47%
Wind Speed W 8 G 24 mph
Barometer 29.73 in (1006.0 mb)
Dewpoint 55°F (13°C)
Visibility NA
Heat Index79°F (26°C)
Last update 20 May 12:56 pm EDT
Extended Forecast for

3 Miles W Katahdin Iron Works State Park ME

  • This Afternoon

    This Afternoon: Sunny, with a high near 81. West wind 16 to 18 mph, with gusts as high as 31 mph.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 40. Northwest wind around 16 mph, with gusts as high as 29 mph.

    Low: 40 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 56. Northwest wind 10 to 13 mph, with gusts as high as 23 mph.

    High: 56 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 37. Northwest wind 3 to 7 mph.

    Low: 37 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 63. Northwest wind 6 to 14 mph, with gusts as high as 25 mph.

    High: 63 °F

    Sunny

  • Friday Night

    Friday Night: Areas of frost after 4am. Otherwise, mostly clear, with a low around 37. Northwest wind around 5 mph becoming calm in the evening.

    Low: 37 °F

    Mostly Clear
    then Areas
    Frost

  • 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 43.

    Low: 43 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 81. West wind 16 to 18 mph, with gusts as high as 31 mph.
Tonight
Mostly cloudy, with a low around 40. Northwest wind around 16 mph, with gusts as high as 29 mph.
Thursday
Sunny, with a high near 56. Northwest wind 10 to 13 mph, with gusts as high as 23 mph.
Thursday Night
Mostly clear, with a low around 37. Northwest wind 3 to 7 mph.
Friday
Sunny, with a high near 63. Northwest wind 6 to 14 mph, with gusts as high as 25 mph.
Friday Night
Areas of frost after 4am. Otherwise, mostly clear, with a low around 37. Northwest wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 66. Calm wind.
Saturday Night
Mostly cloudy, with a low around 43.
Sunday
Partly sunny, with a high near 62.
Sunday Night
A chance of showers, mainly after 3am. Mostly cloudy, with a low around 42. Chance of precipitation is 30%.
Memorial Day
Showers likely. Mostly cloudy, with a high near 58. Chance of precipitation is 60%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 45. Chance of precipitation is 40%.
Tuesday
A chance of showers. Partly sunny, with a high near 66. Chance of precipitation is 40%.
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Forecast Area
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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:
5:25 am EDT May 20, 2026
Forecast Valid:
1pm EDT May 20, 2026-6pm EDT May 26, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation