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.

Fair

37°F

3°C

Humidity 54%
Wind Speed Vrbl 6 mph
Barometer 30.07 in (1018.3 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 14 Mar 9:53 pm EDT
Extended Forecast for

Westport Island ME

  • Tonight

    Tonight: Mostly clear, with a low around 25. West wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 25 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 39. Calm wind becoming south around 5 mph in the afternoon.

    High: 39 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 29. South wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 29 °F

    Mostly Cloudy
    then Chance
    Rain

  • Monday

    Monday: Rain, mainly after 7am. High near 48. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%.

    High: 48 °F

    Rain and
    Breezy

  • Monday Night

    Monday Night: Rain. Low around 42. Windy, with a south wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 100%.

    Low: 42 °F

    Rain and
    Windy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 43. Breezy.

    High: 43 °F

    Mostly Cloudy
    and Breezy
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 17. Breezy.

    Low: 17 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 33.

    High: 33 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 25. West wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny, with a high near 39. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 29. South wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain, mainly after 7am. High near 48. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%.
Monday Night
Rain. Low around 42. Windy, with a south wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 100%.
Tuesday
Mostly sunny, with a high near 43. Breezy.
Tuesday Night
Mostly clear, with a low around 17. Breezy.
Wednesday
Sunny, with a high near 33.
Wednesday Night
Mostly cloudy, with a low around 22.
Thursday
Mostly cloudy, with a high near 39.
Thursday Night
Mostly cloudy, with a low around 28.
Friday
Partly sunny, with a high near 41.
Friday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 23.
Saturday
A 40 percent chance of rain. Mostly cloudy, with a high near 36.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Westport Island ME
 43.9°N 69.72°W (Elev. 20 ft)
Last Update:
6:37 pm EDT Mar 14, 2026
Forecast Valid:
10pm EDT Mar 14, 2026-6pm EDT Mar 21, 2026
 
Forecast Discussion
 
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Additional Resources

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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