Weather Forecast for Long Island
New York, United States of America
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Current Weather - Long Island: 24°C
Current Weather - Long Island: 24°C
New York, United States of America
Sunny
Feels like 26°C
Wind
10 km/h NNW
Humidity
84%
Pressure
1010 mb
UV Index
2
Visibility
10 km
Light rain shower
Sunday, September 13, 2026
High
24°C
Low
21°C
Rain Chance
86%
Hourly Forecast
23°C
23°C
Day Statistics
Maximum Wind
24 km/h
Humidity
88%
Precipitation
21 mm
UV Index
2
Visibility
10 km
Rain Chance
86%
Snow Chance
0%
Sun & Moon
Sunrise
06:31 AM
Sunset
07:05 PM
Moonrise
09:17 AM
Moonset
08:02 PM
Moon Phase
Waxing Crescent
Moon Illumination
8%
Air Quality
PM2.5
7.7
μg/m³
PM10
9.2
μg/m³
NO₂
9.5
μg/m³
O₃
89.5
μg/m³
SO₂
1.3
μg/m³
CO
134.5
μg/m³
Sunny
Monday, September 14, 2026
High
23°C
Low
19°C
Rain Chance
17%
Hourly Forecast
23°C
23°C
23°C
23°C
22°C
22°C
21°C
20°C
20°C
21°C
21°C
22°C
22°C
23°C
23°C
23°C
23°C
23°C
22°C
21°C
20°C
20°C
20°C
19°C
Day Statistics
Maximum Wind
26 km/h
Humidity
59%
Precipitation
0 mm
UV Index
6
Visibility
10 km
Rain Chance
17%
Snow Chance
0%
Sun & Moon
Sunrise
06:32 AM
Sunset
07:03 PM
Moonrise
10:31 AM
Moonset
08:32 PM
Moon Phase
Waxing Crescent
Moon Illumination
14%
Air Quality
PM2.5
6.6
μg/m³
PM10
6.7
μg/m³
NO₂
11.3
μg/m³
O₃
65.1
μg/m³
SO₂
1.2
μg/m³
CO
160
μg/m³
Sunny
Tuesday, September 15, 2026
High
20°C
Low
16°C
Rain Chance
4%
Hourly Forecast
18°C
18°C
17°C
17°C
16°C
16°C
16°C
16°C
16°C
17°C
18°C
19°C
20°C
20°C
20°C
20°C
20°C
20°C
19°C
19°C
19°C
18°C
18°C
18°C
Day Statistics
Maximum Wind
17 km/h
Humidity
58%
Precipitation
0 mm
UV Index
6
Visibility
10 km
Rain Chance
4%
Snow Chance
0%
Sun & Moon
Sunrise
06:33 AM
Sunset
07:02 PM
Moonrise
11:43 AM
Moonset
09:06 PM
Moon Phase
Waxing Crescent
Moon Illumination
23%
Air Quality
PM2.5
4
μg/m³
PM10
4.6
μg/m³
NO₂
5.7
μg/m³
O₃
70
μg/m³
SO₂
0.8
μg/m³
CO
159.4
μg/m³
Sunny
Wednesday, September 16, 2026
High
23°C
Low
18°C
Rain Chance
9%
Hourly Forecast
18°C
18°C
18°C
18°C
18°C
18°C
18°C
18°C
19°C
20°C
21°C
22°C
22°C
22°C
23°C
23°C
23°C
22°C
22°C
21°C
21°C
21°C
21°C
21°C
Day Statistics
Maximum Wind
17 km/h
Humidity
66%
Precipitation
0 mm
UV Index
7
Visibility
10 km
Rain Chance
9%
Snow Chance
0%
Sun & Moon
Sunrise
06:34 AM
Sunset
07:00 PM
Moonrise
12:52 PM
Moonset
09:47 PM
Moon Phase
First Quarter
Moon Illumination
32%
Air Quality
PM2.5
9.9
μg/m³
PM10
12.9
μg/m³
NO₂
9.7
μg/m³
O₃
64.3
μg/m³
SO₂
1.1
μg/m³
CO
181.1
μg/m³
Sunny
Thursday, September 17, 2026
High
25°C
Low
20°C
Rain Chance
57%
Hourly Forecast
21°C
21°C
21°C
21°C
21°C
21°C
21°C
21°C
22°C
23°C
23°C
24°C
24°C
24°C
25°C
24°C
24°C
23°C
23°C
23°C
22°C
21°C
20°C
20°C
Day Statistics
Maximum Wind
18 km/h
Humidity
73%
Precipitation
2 mm
UV Index
6
Visibility
10 km
Rain Chance
57%
Snow Chance
0%
Sun & Moon
Sunrise
06:35 AM
Sunset
06:58 PM
Moonrise
01:55 PM
Moonset
10:34 PM
Moon Phase
First Quarter
Moon Illumination
42%
Air Quality
PM2.5
8.2
μg/m³
PM10
11.4
μg/m³
NO₂
9.3
μg/m³
O₃
55.3
μg/m³
SO₂
1.1
μg/m³
CO
205.1
μg/m³
Patchy rain nearby
Friday, September 18, 2026
High
23°C
Low
19°C
Rain Chance
70%
Hourly Forecast
20°C
20°C
19°C
19°C
19°C
19°C
19°C
19°C
19°C
20°C
21°C
22°C
22°C
22°C
23°C
23°C
22°C
22°C
22°C
21°C
20°C
20°C
20°C
20°C
Day Statistics
Maximum Wind
17 km/h
Humidity
81%
Precipitation
2 mm
UV Index
6
Visibility
10 km
Rain Chance
70%
Snow Chance
0%
Sun & Moon
Sunrise
06:36 AM
Sunset
06:57 PM
Moonrise
02:49 PM
Moonset
11:29 PM
Moon Phase
First Quarter
Moon Illumination
53%
Overcast
Saturday, September 19, 2026
High
23°C
Low
19°C
Rain Chance
17%
Hourly Forecast
20°C
20°C
20°C
20°C
20°C
19°C
20°C
20°C
20°C
21°C
22°C
22°C
23°C
23°C
23°C
23°C
22°C
22°C
22°C
21°C
21°C
21°C
21°C
21°C
Day Statistics
Maximum Wind
18 km/h
Humidity
76%
Precipitation
0 mm
UV Index
5
Visibility
10 km
Rain Chance
17%
Snow Chance
0%
Sun & Moon
Sunrise
06:37 AM
Sunset
06:55 PM
Moonrise
03:35 PM
Moonset
Does not set today
Moon Phase
First Quarter
Moon Illumination
63%
Solar Radiation Data
Shortwave Radiation
346.54
Diffuse Radiation
113.74
DNI
33.1
GTI
296.98
Weather Alerts
Flood Advisory issued September 13 at 11:14AM EDT until September 13 at 2:15PM EDT by NWS Upton NY
* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Western Suffolk County in southeastern New York... * WHEN...Until 215 PM EDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 1114 AM EDT, Doppler radar and automated rain gauges indicated heavy rain. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 0.5 and 1.5 inches of rain have fallen. - Additional rainfall amounts of 1 to 1.5 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Riverhead, Centereach, Shirley, Medford, Hauppauge, Ronkonkoma, Manorville, Stony Brook, Patchogue, Middle Island, Port Jefferson, Wading River, Center Moriches, Mattituck, Southampton, Westhampton, Coram, Holbrook, Smithtown and Sayville. - http://www.weather.gov/safety/flood
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. Stay away or be swept away. River banks and culverts can become unstable and unsafe.
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