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.

26°F

-3°C

Humidity 88%
Wind Speed N 3 mph
Barometer 29.87 in (1013.9 mb)
Dewpoint 23°F (-5°C)
Visibility NA
Last update 18 Jan 2:56 pm EST
Extended Forecast for

3 Miles W Katahdin Iron Works State Park ME

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 30. Calm wind.

    High: 30 °F

    Mostly Cloudy

  • Tonight

    Tonight: A slight chance of snow between 10pm and 3am. Mostly cloudy, with a low around 14. Light north wind. Chance of precipitation is 20%.

    Low: 14 °F

    Slight Chance
    Snow

  • M.L.King Day

    M.L.King Day: Mostly cloudy, with a high near 25. Light and variable wind.

    High: 25 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A chance of snow, mainly before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 10. Wind chill values as low as zero. Calm wind becoming southwest 5 to 9 mph in the evening. Chance of precipitation is 30%.

    Low: 10 °F

    Chance Snow
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 15. West wind 13 to 15 mph, with gusts as high as 26 mph.

    High: 15 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 0. West wind 7 to 11 mph, with gusts as high as 21 mph.

    Low: 0 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 16. Southwest wind around 7 mph.

    High: 16 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Snow likely, mainly after 5am. Mostly cloudy, with a low around 9. Chance of precipitation is 60%.

    Low: 9 °F

    Chance Snow
    then Snow
    Likely

  • Thursday

    Thursday: Snow likely, mainly before 9am. Mostly cloudy, with a high near 28. Chance of precipitation is 60%.

    High: 28 °F

    Snow Likely

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 30. Calm wind.
Tonight
A slight chance of snow between 10pm and 3am. Mostly cloudy, with a low around 14. Light north wind. Chance of precipitation is 20%.
M.L.King Day
Mostly cloudy, with a high near 25. Light and variable wind.
Monday Night
A chance of snow, mainly before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 10. Wind chill values as low as zero. Calm wind becoming southwest 5 to 9 mph in the evening. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 15. West wind 13 to 15 mph, with gusts as high as 26 mph.
Tuesday Night
Partly cloudy, with a low around 0. West wind 7 to 11 mph, with gusts as high as 21 mph.
Wednesday
Mostly sunny, with a high near 16. Southwest wind around 7 mph.
Wednesday Night
Snow likely, mainly after 5am. Mostly cloudy, with a low around 9. Chance of precipitation is 60%.
Thursday
Snow likely, mainly before 9am. Mostly cloudy, with a high near 28. Chance of precipitation is 60%.
Thursday Night
A slight chance of snow showers before 11pm. Partly cloudy, with a low around 7. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 16.
Friday Night
Mostly cloudy, with a low around -4.
Saturday
Mostly sunny and cold, with a high near 9.
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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:
12:43 pm EST Jan 18, 2026
Forecast Valid:
3pm EST Jan 18, 2026-6pm EST Jan 24, 2026
 
Forecast Discussion
 
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Additional Resources

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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