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Hazardous Weather Conditions

Current conditions at

Wiscasset Airport (KIWI)

Lat: 43.96°NLon: 69.71°WElev: 53ft.

Fair

71°F

22°C

Humidity 90%
Wind Speed Calm
Barometer 30.05 in (1017.4 mb)
Dewpoint 68°F (20°C)
Visibility 9.00 mi
Last update 7 Aug 3:53 am EDT
Extended Forecast for

Montsweag ME

Heat Advisory August 7, 11:00am until August 7, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: A slight chance of showers between 2pm and 3pm. Areas of fog before 9am. Otherwise, mostly sunny and hot, with a high near 90. Heat index values as high as 97. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 90 °F

    Areas Fog
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: Patchy fog after 10pm. Otherwise, increasing clouds, with a low around 70. Calm wind.

    Low: 70 °F

    Patchy Fog

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms, mainly after 10am. Partly sunny, with a high near 83. Calm wind becoming south around 5 mph in the afternoon. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 89. Light southwest wind increasing to 5 to 10 mph in the afternoon.

    High: 89 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers after noon. Partly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Today
A slight chance of showers between 2pm and 3pm. Areas of fog before 9am. Otherwise, mostly sunny and hot, with a high near 90. Heat index values as high as 97. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 20%.
Tonight
Patchy fog after 10pm. Otherwise, increasing clouds, with a low around 70. Calm wind.
Saturday
A 40 percent chance of showers and thunderstorms, mainly after 10am. Partly sunny, with a high near 83. Calm wind becoming south around 5 mph in the afternoon. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Mostly cloudy, with a low around 68. Calm wind.
Sunday
Mostly sunny, with a high near 89. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 66.
Monday
Mostly sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 66.
Tuesday
A 30 percent chance of showers after noon. Partly sunny, with a high near 83.
Tuesday Night
A 30 percent chance of showers before 10pm. Mostly cloudy, with a low around 64.
Wednesday
Mostly sunny, with a high near 82.
Wednesday Night
Partly cloudy, with a low around 62.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Montsweag ME
 43.96°N 69.73°W (Elev. 69 ft)
Last Update:
2:44 am EDT Aug 7, 2026
Forecast Valid:
4am EDT Aug 7, 2026-6pm EDT Aug 13, 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