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

Wiscasset Airport (KIWI)

Lat: 43.96°NLon: 69.71°WElev: 53ft.

Overcast

66°F

19°C

Humidity 90%
Wind Speed SE 3 mph
Barometer 29.88 in (1011.7 mb)
Dewpoint 63°F (17°C)
Visibility 8.00 mi
Last update 24 Aug 2:53 am EDT
Extended Forecast for

Growstown ME

  • Overnight

    Overnight: Areas of fog. Otherwise, mostly cloudy, with a low around 63. South wind around 5 mph.

    Low: 63 °F

    Areas Fog

  • Monday

    Monday: Areas of dense fog before 10am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 78. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 78 °F

    Areas Dense
    Fog then
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 57. South wind around 5 mph becoming calm after midnight.

    Low: 57 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 79. South wind 5 to 10 mph.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 57. Southwest wind around 5 mph becoming calm.

    Low: 57 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
Areas of fog. Otherwise, mostly cloudy, with a low around 63. South wind around 5 mph.
Monday
Areas of dense fog before 10am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 78. South wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 57. South wind around 5 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 79. South wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 57. Southwest wind around 5 mph becoming calm.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 62.
Friday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 79. Chance of precipitation is 40%.
Friday Night
A chance of thunderstorms. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 81.
Saturday Night
Partly cloudy, with a low around 55.
Sunday
Mostly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Growstown ME
 43.89°N 69.97°W (Elev. 79 ft)
Last Update:
2:47 am EDT Aug 24, 2026
Forecast Valid:
3am EDT Aug 24, 2026-6pm EDT Aug 30, 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