Local weather forecast

Weather in South Jamesport, NY

Updated 2026-09-26 11:15 local time · ZIP codes 11970

Light rain shower
Now60°F

Light rain shower

High / Low61° / 59°
Rain chance91%
Wind41 mph
Weather alerts

Active alerts

1
Gale Warning issued September 26 at 4:30AM EDT until September 27 at 6:00PM EDT by NWS Upton NY

* WHAT...Northeast winds 25 to 35 kt with gusts up to 45 kt and seas 5 to 8 ft. Occasional gusts up to 50 kt possible on the waters E of Orient Point. * WHERE...Long Island Sound east of Port Jefferson and New Haven, and the south shore and eastern bays of Long Island. * WHEN...Until 6 PM EDT Sunday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility.

Safety instructions

Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions.

Hourly

Next hours

NowLight rain shower60°74% rain
12 PMLight rain shower60°79% rain
1 PMLight rain shower60°79% rain
2 PMLight rain shower59°76% rain
3 PMLight rain shower59°70% rain
4 PMLight rain shower59°63% rain
5 PMLight rain shower59°68% rain
6 PMLight rain shower59°45% rain
7 PMLight rain shower60°42% rain
8 PMLight rain shower60°62% rain
9 PMLight rain shower60°78% rain
10 PMLight rain shower60°73% rain
Forecast

3-day weather forecast

Today2026-09-26
Light rain shower
61° 59°Light rain shower
Rain 91%Gust 46 mph
Tomorrow2026-09-27
Light rain shower
67° 60°Light rain shower
Rain 91%Gust 45 mph
Monday2026-09-28
Light rain shower
66° 62°Light rain shower
Rain 85%Gust 24 mph
Conditions

Weather details

Feels like40°F
Humidity90%
Pressure29.75 inHg
Visibility6 mi
Wind41 mph NE
Wind gusts51 mph
Precipitation0.05 in
UV index1
Daylight

Sunrise, sunset and moon

Sunrise06:41 AM
Sunset06:41 PM
Moonrise06:29 PM
Moon phaseFull Moon
Next 24 hours

Key weather changes ahead

Warmest hour9 AM · 67°F
Coolest hour5 PM · 59°F
Highest rain chance2 AM · 90%
Strongest gusts6 AM · 59 mph
Practical guide

Weather insights for today

Take an umbrella

Rain chance reaches about 79% over the next 12 hours.

A jacket or sweater is a good idea

It feels like 40°F with winds near 41 mph.

Best window: 7 PM

60°F, 42% rain chance and 40 mph wind.

Use extra caution while driving

Visibility is around 6 mi; gusts may reach 56 mph.

Running conditions are less comfortable

Current temperature is 60°F, wind 41 mph, rain chance up to 79%.

Low UV protection needs

UV index is 1.

Local weather characteristics in South Jamesport

New York spans Atlantic coastal, inland valley, Great Lakes and mountain climates. Lake-effect snow, coastal storms and large upstate/downstate temperature differences are all common.

South Jamesport is part of the Northeast weather region. The forecast point is near 40.94°N latitude and 72.58°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.

South Jamesport weather today

Light rain shower and 60°F in South Jamesport, NY. Today's high is 61°F with a 91% rain chance. Winds are around 41 mph with gusts near 51 mph. Relative humidity is 90%, pressure is 29.75 inHg, and visibility is about 6 miles.

Tonight and tomorrow in South Jamesport

Sunrise is at 06:41 AM and sunset is at 06:41 PM. Tomorrow's forecast calls for Light rain shower with a high near 67°F and a low near 60°F. The maximum rain chance is 91%.

Nearby

Weather near South Jamesport

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