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

Severe Weather and Heavy Rain for the Plains and Mid-Atlantic; Building Heat in the West

Severe thunderstorms will remain possible in the Mid-Atlantic through Tuesday. Severe thunderstorms and heavy rain will also be possible in the central/southern Plains on Tuesday and Wednesday. Hazardous heat will linger across the southern U.S. and build across the West through mid-week. Hot and dry weather will create Elevated to Critical fire weather conditions in the Four Corners Region. Read More >

Current conditions at

Greenville (KGNR)

Lat: 45.46°NLon: 69.55°WElev: 1394ft.

57°F

14°C

Humidity 100%
Wind Speed Vrbl 7 mph
Barometer 30.03 in (1016.9 mb)
Dewpoint 57°F (14°C)
Visibility NA
Last update 22 Jun 11:56 pm EDT
Extended Forecast for

2 Miles S Onawa ME

  • Overnight

    Overnight: A chance of showers before 3am, then rain likely after 3am. Patchy fog before 3am, then patchy fog after 5am. Otherwise, cloudy, with a low around 53. Calm wind. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 53 °F

    Rain Likely
    and Patchy
    Fog

  • Tuesday

    Tuesday: Rain likely before 10am, then a chance of showers between 10am and 1pm. Patchy fog between 8am and 9am. Otherwise, mostly cloudy, with a high near 72. Calm wind. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 72 °F

    Rain Likely
    and Patchy
    Fog then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Patchy fog after 2am. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 54. Calm wind becoming northwest around 5 mph after midnight.

    Low: 54 °F

    Partly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 72. Northwest wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    High: 72 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 55. Northwest wind 3 to 5 mph.

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 80. Calm wind. Chance of precipitation is 30%.

    High: 80 °F

    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, mainly after midnight. Mostly cloudy, with a low around 54. Calm wind. Chance of precipitation is 50%.

    Low: 54 °F

    Chance
    Showers

  • Friday

    Friday: Showers, with thunderstorms also possible after 2pm. High near 73. Chance of precipitation is 90%.

    High: 73 °F

    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 9pm, then a chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.

    Low: 56 °F

    Showers
    Likely then
    Chance
    Showers

Detailed Forecast

Overnight
A chance of showers before 3am, then rain likely after 3am. Patchy fog before 3am, then patchy fog after 5am. Otherwise, cloudy, with a low around 53. Calm wind. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Rain likely before 10am, then a chance of showers between 10am and 1pm. Patchy fog between 8am and 9am. Otherwise, mostly cloudy, with a high near 72. Calm wind. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Patchy fog after 2am. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 54. Calm wind becoming northwest around 5 mph after midnight.
Wednesday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 72. Northwest wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 55. Northwest wind 3 to 5 mph.
Thursday
A chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 80. Calm wind. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms, mainly after midnight. Mostly cloudy, with a low around 54. Calm wind. Chance of precipitation is 50%.
Friday
Showers, with thunderstorms also possible after 2pm. High near 73. Chance of precipitation is 90%.
Friday Night
Showers likely and possibly a thunderstorm before 9pm, then a chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.
Saturday
A chance of showers, mainly after 3pm. Partly sunny, with a high near 79. Chance of precipitation is 30%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 57.
Monday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 81. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Onawa ME
 45.33°N 69.37°W (Elev. 640 ft)
Last Update:
7:51 pm EDT Jun 22, 2026
Forecast Valid:
12am EDT Jun 23, 2026-6pm EDT Jun 29, 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