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

Hazardous Weather Conditions

Current conditions at

Wiscasset Airport (KIWI)

Lat: 43.96°NLon: 69.71°WElev: 53ft.

Fog

18°C

64°F

Humidity 93%
Wind Speed E 6 km/h
Barometer 1012.4 mb (29.90 in)
Dewpoint 17°C (62°F)
Visibility 0.80 km
Last update 18 Jun 7:53 pm EDT
Extended Forecast for

Topsham ME

  • Tonight

    Tonight: Widespread dense fog, mainly after 11pm. Otherwise, mostly cloudy, with a low around 16. South wind 5 to 10 km/h becoming calm in the evening.

    Low: 16 °C

    Dense Fog

  • Juneteenth

    Juneteenth: Widespread dense fog, mainly before 4pm. Otherwise, mostly cloudy, with a high near 24. Light southeast wind becoming south 10 to 15 km/h in the morning.

    High: 24 °C

    Dense Fog

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Patchy fog before 7pm. Otherwise, mostly cloudy, with a low around 17. Southwest wind around 10 km/h. Chance of precipitation is 50%. New precipitation amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.

    Low: 17 °C

    Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: Mostly sunny, with a high near 26. West wind 15 to 25 km/h, with gusts as high as 50 km/h.

    High: 26 °C

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 14. West wind 5 to 10 km/h.

    Low: 14 °C

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 27.

    High: 27 °C

    Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 15.

    Low: 15 °C

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers before 2pm. Mostly sunny, with a high near 28.

    High: 28 °C

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 17.

    Low: 17 °C

    Partly Cloudy

Detailed Forecast

Tonight
Widespread dense fog, mainly after 11pm. Otherwise, mostly cloudy, with a low around 16. South wind 5 to 10 km/h becoming calm in the evening.
Juneteenth
Widespread dense fog, mainly before 4pm. Otherwise, mostly cloudy, with a high near 24. Light southeast wind becoming south 10 to 15 km/h in the morning.
Thursday Night
A chance of showers and thunderstorms. Patchy fog before 7pm. Otherwise, mostly cloudy, with a low around 17. Southwest wind around 10 km/h. Chance of precipitation is 50%. New precipitation amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.
Friday
Mostly sunny, with a high near 26. West wind 15 to 25 km/h, with gusts as high as 50 km/h.
Friday Night
Mostly clear, with a low around 14. West wind 5 to 10 km/h.
Saturday
Sunny, with a high near 27.
Saturday Night
A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 15.
Sunday
A 30 percent chance of showers before 2pm. Mostly sunny, with a high near 28.
Sunday Night
Partly cloudy, with a low around 17.
Monday
Partly sunny, with a high near 29.
Monday Night
Partly cloudy, with a low around 19.
Tuesday
Sunny and hot, with a high near 33.
Tuesday Night
Partly cloudy, with a low around 20.
Wednesday
A 30 percent chance of showers. Mostly sunny, with a high near 29.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Topsham ME
 43.95°N 69.92°W (Elev. 82 m)
Last Update:
3:05 pm EDT Jun 18, 2025
Forecast Valid:
8pm EDT Jun 18, 2025-6pm EDT Jun 25, 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