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.

Light Rain Fog/Mist

61°F

16°C

Humidity 90%
Wind Speed S 3 mph
Barometer 29.92 in (1013.0 mb)
Dewpoint 58°F (14°C)
Visibility 5.00 mi
Last update 29 Aug 11:53 pm EDT
Extended Forecast for

Topsham ME

  • Overnight

    Overnight: Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Areas of fog. Otherwise, mostly cloudy, with a low around 53. Calm wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 53 °F

    Showers
    Likely and
    Areas Fog

  • Saturday

    Saturday: A 30 percent chance of showers, mainly before 7am. Mostly sunny, with a high near 74. Northwest wind around 5 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 74 °F

    Chance
    Showers then
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 48. West wind around 5 mph becoming calm.

    Low: 48 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 77. Northwest wind around 5 mph.

    High: 77 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 52. Calm wind.

    Low: 52 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Areas of fog. Otherwise, mostly cloudy, with a low around 53. Calm wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A 30 percent chance of showers, mainly before 7am. Mostly sunny, with a high near 74. Northwest wind around 5 mph. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Mostly clear, with a low around 48. West wind around 5 mph becoming calm.
Sunday
Sunny, with a high near 77. Northwest wind around 5 mph.
Sunday Night
Mostly clear, with a low around 52. Calm wind.
Labor Day
Sunny, with a high near 79.
Monday Night
Partly cloudy, with a low around 53.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
Partly cloudy, with a low around 52.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
Mostly sunny, with a high near 75.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 56.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Topsham ME
 43.93°N 69.98°W (Elev. 3 ft)
Last Update:
8:23 pm EDT Aug 29, 2025
Forecast Valid:
12am EDT Aug 30, 2025-6pm EDT Sep 5, 2025
 
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