Heat Impacting Numerous Spots

Heat Advisories and even a few Heat Warnings continue to impact numerous spots around the country. In the West, dangerous heat and some fire weather concerns stretch from northern CA/NV into the Northwest, including Portland. Meanwhile, Advisories stretch across the South from Oklahoma to Alabama. Finally, Advisories with increasing humidity cover part of NY state into NJ, including New York City.

Hazardous Weather Conditions

For More Weather Information:

Gray/Portland, ME Local Forecast Office

20NM ENE Portsmouth NH

Marine Point Forecast

  • This

    Mostly Cloudy

    Light Wind

    High: 73 °F

  • Tonight

    Dense Fog

    SSE 10kt

    Low: 68 °F

  • Tuesday

    Severe Thunderstorms

    S 15kt

    High: 71 °F

  • Tuesday

    Heavy Rain

    SSW 15ktWinds Decreasing

    Low: 65 °F

  • Wednesday

    Chance Showers

    NNW 10kt

    High: 71 °F

  • Wednesday

    Mostly Clear

    NW 10kt

    Low: 63 °F

  • Thursday


    N 10kt

    High: 70 °F

  • Thursday


    S 10kt

    Low: 63 °F

  • Friday


    S 10kt

    High: 72 °F

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:43 pm EDT Jul 16, 2018
Forecast Valid: 3pm EDT Jul 16, 2018-6pm EDT Jul 22, 2018

View Nearby Observations

Detailed Forecast

Synopsis: ANZ100-170645- 1244 PM EDT Mon Jul 16 2018 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... A weak ridge of high pressure will be over the waters today before moving east tonight. A strong cold front will approach from the west on Tuesday...crossing the waters Tuesday night. High pressure builds in from the west on Wednesday and remains over the waters through the end of the week. $$

This Afternoon
Variable winds 5 kt or less. Mostly cloudy. Seas around 3 ft.
SE wind 5 to 10 kt becoming S after midnight. Areas of dense fog after 11pm. Seas around 3 ft.
S wind around 15 kt, with gusts as high as 25 kt. A chance of showers and thunderstorms before noon, then a chance of showers and thunderstorms after 3pm. Some storms could be severe, with damaging winds and heavy rain. Areas of dense fog before 11am. Seas 3 to 4 ft.
Tuesday Night
SSW wind 10 to 15 kt becoming WSW 5 to 8 kt after midnight. Winds could gust as high as 20 kt. Showers and thunderstorms before 1am, then showers likely. Some of the storms could produce gusty winds and heavy rain. Seas around 4 ft.
NNW wind around 10 kt. A chance of showers before 1pm. Seas around 3 ft.
Wednesday Night
NW wind 5 to 10 kt. Mostly clear. Seas around 3 ft.
N wind 5 to 10 kt becoming SSE in the afternoon. Sunny. Seas around 3 ft.
Thursday Night
S wind 5 to 10 kt becoming WSW after midnight. Clear. Seas 2 to 3 ft.
WSW wind 5 to 10 kt becoming S in the afternoon. Sunny. Seas around 2 ft.

Winds and seas higher in and near tstms.


  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.
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Point Forecast: 43.17°N 70.36°W
Last Update: 12:43 pm EDT Jul 16, 2018
Forecast Valid: 3pm EDT Jul 16, 2018-6pm EDT Jul 22, 2018
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