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

67°F

19°C

Humidity 68%
Wind Speed Vrbl 5 mph
Barometer 30.22 in (1023.4 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 2 Sep 8:53 am EDT
Extended Forecast for

Topsham ME

  • Today

    Today: Partly sunny, with a high near 73. Southeast wind 5 to 10 mph.

    High: 73 °F

    Partly Sunny

  • Tonight

    Tonight: A slight chance of showers before 2am, then showers likely after 3am. Patchy fog after midnight. Otherwise, cloudy, with a low around 55. Calm wind becoming southeast around 5 mph after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 55 °F

    Mostly Cloudy
    then Showers
    Likely and
    Patchy Fog

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 4pm, then a chance of showers. Patchy fog before 10am. High near 72. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    High: 72 °F

    Showers and
    Patchy Fog

  • Thursday Night

    Thursday Night: Cloudy, then gradually becoming partly cloudy, with a low around 58. North wind around 5 mph becoming calm.

    Low: 58 °F

    Decreasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 81. Northwest wind 5 to 10 mph.

    High: 81 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Saturday Night

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

    Low: 52 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 73. Southeast wind 5 to 10 mph.
Tonight
A slight chance of showers before 2am, then showers likely after 3am. Patchy fog after midnight. Otherwise, cloudy, with a low around 55. Calm wind becoming southeast around 5 mph after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Showers and possibly a thunderstorm before 4pm, then a chance of showers. Patchy fog before 10am. High near 72. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Thursday Night
Cloudy, then gradually becoming partly cloudy, with a low around 58. North wind around 5 mph becoming calm.
Friday
Mostly sunny, with a high near 81. Northwest wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around 56.
Saturday
Mostly sunny, with a high near 73.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
Mostly sunny, with a high near 73.
Sunday Night
Mostly clear, with a low around 51.
Labor Day
Sunny, with a high near 77.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
Mostly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Topsham ME
 43.93°N 69.95°W (Elev. 39 ft)
Last Update:
6:52 am EDT Sep 2, 2026
Forecast Valid:
9am EDT Sep 2, 2026-6pm EDT Sep 8, 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