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Hazardous Weather Conditions

Current conditions at

Greenville (KGNR)

Lat: 45.46°NLon: 69.55°WElev: 1394ft.

60°F

16°C

Humidity 31%
Wind Speed NW 15 G 25 mph
Barometer 30.26 in (1025.7 mb)
Dewpoint 29°F (-2°C)
Visibility NA
Last update 22 May 3:56 pm EDT
Extended Forecast for

3 Miles W Katahdin Iron Works State Park ME

Frost Advisory May 23, 12:00am until May 23, 07:00am
Click here for hazard details and duration
Frost Advisory

  • Tonight

    Tonight: Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 34. Northwest wind 6 to 11 mph becoming light in the evening. Winds could gust as high as 22 mph.

    Low: 34 °F

    Mostly Clear
    then Frost

  • Saturday

    Saturday: Areas of frost before 7am. Otherwise, sunny, with a high near 67. Calm wind.

    High: 67 °F

    Areas Frost
    then Mostly
    Sunny

  • Saturday Night

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

    Low: 42 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 59. Calm wind becoming south 5 to 9 mph in the morning.

    High: 59 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Rain, mainly after 9pm. Low around 41. Southeast wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Rain

  • Memorial Day

    Memorial Day: Rain, mainly before 2pm. High near 58. Southeast wind 3 to 5 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 58 °F

    Rain

  • Monday Night

    Monday Night: A chance of rain before 8pm, then a chance of showers between 8pm and 10pm. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 45. Calm wind. Chance of precipitation is 30%.

    Low: 45 °F

    Chance Rain
    then Patchy
    Fog

  • Tuesday

    Tuesday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers, with thunderstorms also possible after 2am. Mostly cloudy, with a low around 49. Chance of precipitation is 40%.

    Low: 49 °F

    Chance
    Showers

Detailed Forecast

Tonight
Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 34. Northwest wind 6 to 11 mph becoming light in the evening. Winds could gust as high as 22 mph.
Saturday
Areas of frost before 7am. Otherwise, sunny, with a high near 67. Calm wind.
Saturday Night
Partly cloudy, with a low around 42. Calm wind.
Sunday
Partly sunny, with a high near 59. Calm wind becoming south 5 to 9 mph in the morning.
Sunday Night
Rain, mainly after 9pm. Low around 41. Southeast wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Memorial Day
Rain, mainly before 2pm. High near 58. Southeast wind 3 to 5 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A chance of rain before 8pm, then a chance of showers between 8pm and 10pm. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 45. Calm wind. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
A chance of showers, with thunderstorms also possible after 2am. Mostly cloudy, with a low around 49. Chance of precipitation is 40%.
Wednesday
A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 65. Chance of precipitation is 50%.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 45. Chance of precipitation is 20%.
Thursday
A chance of showers. Mostly sunny, with a high near 62. Chance of precipitation is 30%.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 43. Chance of precipitation is 20%.
Friday
A slight chance of showers. Mostly sunny, with a high near 61. Chance of precipitation is 20%.
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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:
4:02 pm EDT May 22, 2026
Forecast Valid:
4pm EDT May 22, 2026-6pm EDT May 29, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation