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.

57°F

14°C

Humidity 81%
Wind Speed Calm
Barometer 29.75 in (1007.0 mb)
Dewpoint 51°F (11°C)
Visibility NA
Last update 12 Aug 2:56 am EDT
Extended Forecast for

Onawa ME

  • Overnight

    Overnight: Mostly clear, with a low around 58. Northwest wind around 6 mph.

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 78. Northwest wind 7 to 9 mph.

    High: 78 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 57. Light northwest wind.

    Low: 57 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 76. West wind 3 to 6 mph. Chance of precipitation is 40%.

    High: 76 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of thunderstorms before 7pm. Partly cloudy, with a low around 55. Northwest wind 5 to 7 mph. Chance of precipitation is 20%.

    Low: 55 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 73. Northwest wind 10 to 13 mph, with gusts as high as 23 mph.

    High: 73 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 54. Northwest wind around 8 mph.

    Low: 54 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 58. Northwest wind around 6 mph.
Wednesday
Increasing clouds, with a high near 78. Northwest wind 7 to 9 mph.
Wednesday Night
Partly cloudy, with a low around 57. Light northwest wind.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 76. West wind 3 to 6 mph. Chance of precipitation is 40%.
Thursday Night
A slight chance of thunderstorms before 7pm. Partly cloudy, with a low around 55. Northwest wind 5 to 7 mph. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 73. Northwest wind 10 to 13 mph, with gusts as high as 23 mph.
Friday Night
Mostly clear, with a low around 54. Northwest wind around 8 mph.
Saturday
Sunny, with a high near 76.
Saturday Night
Partly cloudy, with a low around 55.
Sunday
Mostly sunny, with a high near 77.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 74. Chance of precipitation is 30%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 79. Chance of precipitation is 20%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Onawa ME
 45.37°N 69.36°W (Elev. 597 ft)
Last Update:
2:43 am EDT Aug 12, 2026
Forecast Valid:
3am EDT Aug 12, 2026-6pm EDT Aug 18, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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