South Jamesport, NY Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Mon
Jul 27 		Mostly Clear
Close Hourly 		-º / 66º 23% SSW 8 mph 94%
7pm Sunny 77º 2% SSW 8 mph 75%
8pm Sunny 75º 3% SSW 7 mph 83%
9pm Clear 72º 4% SSW 5 mph 92%
10pm Clear 69º 4% SSW 4 mph 98%
11pm Clear 68º 5% S 5 mph 99%
Tue
Jul 28 		PM Showers
View Hourly 		79º / 67º 37% S 16 mph 78%
12am Mostly Clear 68º 5% S 5 mph 99%
1am Partly Cloudy 68º 11% S 5 mph 100%
2am Partly Cloudy 68º 19% SSW 5 mph 100%
3am Mostly Clear 68º 18% SSW 5 mph 100%
4am Partly Cloudy 67º 14% SSW 5 mph 100%
5am Partly Cloudy 68º 12% S 5 mph 100%
6am Mostly Cloudy 68º 23% SSW 6 mph 100%
7am Mostly Cloudy 70º 16% SSW 7 mph 97%
8am Mostly Cloudy 74º 24% SSW 10 mph 89%
9am Cloudy 75º 24% S 11 mph 81%
10am Cloudy 76º 17% S 12 mph 77%
11am Cloudy 78º 15% S 13 mph 73%
12pm Cloudy 78º 15% S 14 mph 70%
1pm Cloudy 79º 16% S 16 mph 68%
2pm Few Showers 79º 33% S 15 mph 68%
3pm Few Showers 77º 32% S 16 mph 73%
4pm Few Showers 76º 30% S 16 mph 77%
5pm Cloudy 75º 23% SSE 15 mph 80%
6pm Showers 74º 38% SSE 14 mph 82%
7pm Showers 73º 56% SSE 13 mph 83%
8pm Rain 72º 73% SSE 12 mph 89%
9pm Rain 70º 81% SSE 12 mph 96%
10pm Rain 69º 72% SSE 11 mph 98%
11pm Thunderstorms 69º 66% SE 12 mph 97%
Wed
Jul 29 		AM Thunderstorms
View Hourly 		79º / 65º 65% S 10 mph 80%
12am Thunderstorms 68º 78% SE 12 mph 97%
1am Thunderstorms 69º 90% SE 14 mph 96%
2am Thunderstorms 69º 95% SE 14 mph 97%
3am Thunderstorms 68º 96% SE 13 mph 97%
4am Thunderstorms 68º 87% SE 12 mph 98%
5am Thunderstorms 68º 69% SE 10 mph 100%
6am Thunderstorms 68º 77% SE 8 mph 100%
7am Thunderstorms 69º 63% SE 6 mph 99%
8am Thunderstorms 72º 63% SE 8 mph 95%
9am Thunderstorms 73º 66% SE 10 mph 88%
10am Thunderstorms 74º 63% SE 9 mph 82%
11am Scattered Thunderstorms 75º 49% SE 9 mph 81%
12pm Scattered Thunderstorms 76º 36% SSE 8 mph 77%
1pm Partly Cloudy 78º 21% SSW 9 mph 72%
2pm Partly Cloudy 78º 20% SSW 9 mph 70%
3pm Partly Cloudy 78º 15% SSW 9 mph 69%
4pm Partly Cloudy 77º 16% SSW 8 mph 71%
5pm Mostly Cloudy 76º 21% SSW 8 mph 74%
6pm Scattered Thunderstorms 75º 38% SSW 7 mph 76%
Thu
Jul 30 		Showers 76º / 63º 56% N 8 mph 80%
Fri
Jul 31 		Partly Cloudy 78º / 64º 23% NNW 9 mph 72%
Sat
Aug 1 		Partly Cloudy 81º / 66º 13% S 8 mph 71%
Sun
Aug 2 		Mostly Cloudy 80º / 66º 18% S 10 mph 72%
Mon
Aug 3 		AM Showers 81º / 65º 35% W 9 mph 72%

Weather Radar for South Jamesport, NY See Radar

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* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for South Jamesport, NY

This Afternoon
High : 78ºF
S wind around 7 kt. A slight chance of showers and thunderstorms. Seas 1 ft or less.
Tonight
Low : 69ºF
SSW wind around 6 kt. A slight chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms after 5am. Seas 1 ft or less.
Tuesday
High : 78ºF
S wind 7 to 10 kt increasing to 10 to 13 kt in the afternoon. Winds could gust as high as 21 kt. A chance of showers and thunderstorms before 11am, then a chance of showers and thunderstorms after 2pm. Seas 1 ft or less.
Tuesday Night
Low : 69ºF
SE wind 11 to 14 kt, with gusts as high as 23 kt. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 11pm. Seas around 1 ft.
Wednesday
High : 77ºF
SE wind 10 to 15 kt, with gusts as high as 25 kt. Showers and possibly a thunderstorm before 2pm, then a chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Seas around 1 ft.
Wednesday Night
Low : 67ºF
ESE wind around 6 kt becoming ENE after midnight. Showers likely, mainly after 8pm. Seas 1 ft or less.
Thursday
High : 76ºF
N wind 7 to 10 kt. Showers likely, with thunderstorms also possible after 2pm. Seas 1 ft or less.
Thursday Night
Low : 66ºF
Variable winds 5 kt or less. A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Seas 1 ft or less.
Friday
High : 78ºF
N wind around 7 kt. Mostly sunny. Seas 1 ft or less.

NOAA Buoy Data Near South Jamesport, NY See Map

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    Wind Speed Forecast for South Jamesport, NY

    MondayTuesdayWednesday
    Wind Speed (MPH) 85571316131213699
    11pm3am7am11am3pm7pm11pm3am7am11am3pm7pm
    MPH 85571316131213699
    DIR SSWSSSWSSWSSSSESESESESESSW

    Current Weather Conditions In South Jamesport, NY

    As Of: 11 minutes ago

    • 77ºF
    • 77ºF
    • 8mph
    • 0º (SSW)
    • 8mph
    • Sunny
    • 10mi
    • 29.79"
    • 75%
    • 0ºF

    The weather right now in South Jamesport, NY is Sunny. The current temperature is 77°F, and the expected high and low for today, Monday, July 27, 2026, are -° high temperature and 66°F low temperature. The wind is currently blowing at 8 miles per hour, and coming from the South Southwest. The wind is gusting to 8 mph. With the wind and the atmosphere the temperature feels like 77° Fahrenheit. Expected precipitation is 2 percent, with current humidity at 75 percent, and air pressure at 29.79 in. Visibility is 10 nautical miles. There are 1 current weather alert(s).

    Weather Alerts
    Small Craft Advisory - 2:56pm Mon Jul 27 2026

    ...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 6 PM TUESDAY TO 2 PM EDT WEDNESDAY...

    WHAT: Southeast winds 10 to 20 kt with gusts up to 30 kt.

    WHERE: Long Island Sound east of Port Jefferson and New
    Haven, and Peconic and Gardiners Bays.

    WHEN: From 6 PM Tuesday to 2 PM EDT Wednesday.

    IMPACTS: Conditions will be hazardous to small craft.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    Inexperienced mariners, especially those operating smaller
    vessels, should avoid navigating in hazardous conditions.

    &&