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.

54°F

12°C

Humidity 97%
Wind Speed Vrbl 7 mph
Barometer 29.71 in (1006.2 mb)
Dewpoint 53°F (12°C)
Visibility NA
Wind Chill52°F (11°C)
Last update 18 Jun 11:56 am EDT
Extended Forecast for

5 Miles NNE Katahdin Iron Works State Park ME

  • This Afternoon

    This Afternoon: Showers, with thunderstorms also possible after 2pm. High near 56. Southeast wind 11 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    High: 56 °F

    Showers

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 1am, then isolated showers between 1am and 2am. Mostly cloudy, with a low around 51. South wind 6 to 13 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 51 °F

    Showers
    Likely then
    Scattered
    Showers

  • Juneteenth

    Juneteenth: A chance of showers before 4pm, then a chance of showers after 5pm. Mostly sunny, with a high near 66. West wind 15 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.

    High: 66 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers before 9pm, then a chance of showers after 1am. Increasing clouds, with a low around 53. West wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

    Low: 53 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers. Partly sunny, with a high near 57. Northwest wind around 17 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.

    High: 57 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A slight chance of showers before midnight. Mostly cloudy, with a low around 51. Northwest wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    Low: 51 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 62. Northwest wind 7 to 9 mph. Chance of precipitation is 40%.

    High: 62 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 53.

    Low: 53 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 3pm, then showers likely and possibly a thunderstorm after 3pm. Partly sunny, with a high near 65. Chance of precipitation is 60%.

    High: 65 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Showers, with thunderstorms also possible after 2pm. High near 56. Southeast wind 11 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Tonight
Showers likely and possibly a thunderstorm before 1am, then isolated showers between 1am and 2am. Mostly cloudy, with a low around 51. South wind 6 to 13 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Juneteenth
A chance of showers before 4pm, then a chance of showers after 5pm. Mostly sunny, with a high near 66. West wind 15 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers before 9pm, then a chance of showers after 1am. Increasing clouds, with a low around 53. West wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Saturday
A chance of showers. Partly sunny, with a high near 57. Northwest wind around 17 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Saturday Night
A slight chance of showers before midnight. Mostly cloudy, with a low around 51. Northwest wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Sunday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 62. Northwest wind 7 to 9 mph. Chance of precipitation is 40%.
Sunday Night
Mostly cloudy, with a low around 53.
Monday
A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 3pm, then showers likely and possibly a thunderstorm after 3pm. Partly sunny, with a high near 65. Chance of precipitation is 60%.
Monday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 66. Chance of precipitation is 50%.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 55. Chance of precipitation is 20%.
Wednesday
A chance of showers. Mostly sunny, with a high near 70. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNE Katahdin Iron Works State Park ME
 45.52°N 69.13°W (Elev. 1857 ft)
Last Update:
11:18 am EDT Jun 18, 2026
Forecast Valid:
12pm EDT Jun 18, 2026-6pm EDT Jun 24, 2026
 
Forecast Discussion
 
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Additional Resources

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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