Grumman, NY Weather Forecast & Current Conditions

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Grumman Weather Map
UTC Time: 9/20/2026, 04:33
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Aeronautical Observation: Automated synoptic observations via NWS Gateway.
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Grumman, NY Regional Weather

Expires:202609200500;;744049
ASUS41 KOKX 200410
RWROKX

Regional Weather Roundup
National Weather Service New York NY
1200 AM EDT SUN SEP 20 2026

Note: "FAIR" indicates few or no clouds below 12,000 feet with no
significant weather and/or obstructions to visibility.


NYZ177-179-078>081-200500-
Long Island New York
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
Jones Beach      N/A     64 N/A N/A SE8         N/A                   
Wantagh          N/A     64  52  63 E7          N/A                   
Hempstead      NOT AVBL                                               
Matinecock Pt    N/A     63 N/A N/A E3          N/A                   
Farmingdale    NOT AVBL                                               
MacArthur/ISP  NOT AVBL                                               
Stony Brook      N/A     63  52  67 SE3         N/A                   
Shirley        NOT AVBL                                               
Mt Sinai Harb    N/A     63 N/A N/A SE6         N/A                   
Westhampton    NOT AVBL                                               
East Hampton   NOT AVBL                                               
Southold         N/A     63  50  63 SE7         N/A                   
Montauk        NOT AVBL                                               
$$
 

SKY/WX - Weather  TMP - Temperature  DP - Dew Point  RH - Humidity
WIND - Wind Direction/Speed PRES - Barometric Pressure VSB - Visibility
WCI - Wind Chill Index E13G22 Wind - East Wind 13 mph/Gusts of 22 mph

Grumman, NY

Afternoon
Sunny
68°/ 58° 20°/ 14°
0%
Sunday
Rain Showers
72°/ 58° 22°/ 14°
100%
Monday
Rain Showers
68°/ 55° 20°/ 13°
50%
Tuesday
Rain Showers
65°/ 55° 18°/ 13°
30%
Wednesday
Partly Cloudy
65°/ 55° 18°/ 13°
0%
Thursday
Rain Showers
65°/ 55° 18°/ 13°
40%
Friday
Rain Showers
65°/ 55° 18°/ 13°
50%
Saturday
Rain Showers
68°20°
40%

Day: Mostly sunny. Near steady temperature in the upper 60s. East winds 5 to 10 mph.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 50s. Southeast winds 5 to 10 mph.

Southeast Suffolk, NY

Afternoon
Sunny
68°/ 58° 20°/ 14°
0%
Sunday
Rain Showers
72°/ 58° 22°/ 14°
100%
Monday
Rain Showers
68°/ 58° 20°/ 14°
50%
Tuesday
Rain Showers
65°/ 55° 18°/ 13°
30%
Wednesday
Partly Cloudy
65°/ 55° 18°/ 13°
0%
Thursday
Rain Showers
65°/ 55° 18°/ 13°
40%
Friday
Rain Showers
65°/ 55° 18°/ 13°
50%
Saturday
Rain Showers
68°20°
30%

Day: Mostly sunny. Highs in the upper 60s. East winds 5 to 10 mph.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 50s. Southeast winds 5 to 10 mph.

Northwest Suffolk, NY

Afternoon
Partly Cloudy
68°/ 58° 20°/ 14°
0%
Sunday
Rain Showers
72°/ 58° 22°/ 14°
90%
Monday
Rain Showers
68°/ 55° 20°/ 13°
40%
Tuesday
Rain Showers
65°/ 52° 18°/ 11°
30%
Wednesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Thursday
Rain Showers
65°/ 52° 18°/ 11°
40%
Friday
Rain Showers
65°/ 52° 18°/ 11°
50%
Saturday
Rain Showers
68°20°
30%

Day: Partly sunny. Highs in the upper 60s. East winds 5 to 10 mph.

Night: Mostly cloudy. Lows in the upper 50s. Southeast winds 5 to 10 mph.

Southwest Suffolk, NY

Afternoon
Partly Cloudy
68°/ 58° 20°/ 14°
0%
Sunday
Rain Showers
72°/ 58° 22°/ 14°
80%
Monday
Rain Showers
68°/ 55° 20°/ 13°
50%
Tuesday
Rain Showers
65°/ 55° 18°/ 13°
30%
Wednesday
Mostly Cloudy
65°/ 55° 18°/ 13°
0%
Thursday
Rain Showers
65°/ 52° 18°/ 11°
40%
Friday
Rain Showers
65°/ 55° 18°/ 13°
50%
Saturday
Rain Showers
68°20°
30%

Day: Partly sunny. Highs in the upper 60s. East winds 10 to 15 mph.

Night: Mostly cloudy. Lows in the upper 50s. Southeast winds 5 to 10 mph.

Southern New Haven, CT

Afternoon
Sunny
68°/ 55° 20°/ 13°
0%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
100%
Monday
Rain Showers
68°/ 52° 20°/ 11°
40%
Tuesday
Mostly Cloudy
65°/ 50° 18°/ 10°
0%
Wednesday
Partly Cloudy
65°/ 50° 18°/ 10°
0%
Thursday
Rain Showers
65°/ 50° 18°/ 10°
40%
Friday
Rain Showers
65°/ 52° 18°/ 11°
40%
Saturday
Rain Showers
68°20°
30%

Day: Mostly sunny. Highs in the upper 60s. Southeast winds around 5 mph.

Night: Mostly cloudy. Lows in the mid 50s. Southeast winds around 5 mph.

Southern Fairfield, CT

Afternoon
Partly Cloudy
68°/ 55° 20°/ 13°
0%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
100%
Monday
Rain Showers
68°/ 52° 20°/ 11°
30%
Tuesday
Rain Showers
65°/ 50° 18°/ 10°
30%
Wednesday
Mostly Cloudy
65°/ 50° 18°/ 10°
0%
Thursday
Rain Showers
65°/ 50° 18°/ 10°
40%
Friday
Rain Showers
65°/ 52° 18°/ 11°
40%
Saturday
Rain Showers
68°20°
30%

Day: Partly sunny. Near steady temperature in the upper 60s. East winds 5 to 10 mph.

Night: Mostly cloudy. Lows in the mid 50s. Southeast winds 5 to 10 mph.

Southern Middlesex, CT

Afternoon
Sunny
68°/ 52° 20°/ 11°
0%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
100%
Monday
Rain Showers
68°/ 52° 20°/ 11°
40%
Tuesday
Mostly Cloudy
65°/ 50° 18°/ 10°
0%
Wednesday
Partly Cloudy
65°/ 50° 18°/ 10°
0%
Thursday
Rain Showers
65°/ 52° 18°/ 11°
40%
Friday
Rain Showers
65°/ 52° 18°/ 11°
40%
Saturday
Rain Showers
68°20°
30%

Day: Mostly sunny. Near steady temperature in the upper 60s. Southeast winds around 5 mph.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 50s. East winds around 5 mph.

Northern New Haven, CT

Afternoon
Partly Cloudy
68°/ 52° 20°/ 11°
0%
Sunday
Rain Showers
65°/ 52° 18°/ 11°
100%
Monday
Rain Showers
65°/ 48° 18°/
20%
Tuesday
Mostly Cloudy
62°/ 45° 17°/
0%
Wednesday
Partly Cloudy
65°/ 45° 18°/
0%
Thursday
Rain Showers
62°/ 48° 17°/
40%
Friday
Rain Showers
62°/ 48° 17°/
40%
Saturday
Rain Showers
65°18°
30%

Day: Partly sunny. Highs in the upper 60s. East winds around 5 mph.

Night: Mostly cloudy. Lows in the lower 50s. Southeast winds around 5 mph.

Northern Fairfield, CT

Afternoon
Sunny
68°/ 52° 20°/ 11°
0%
Sunday
Rain Showers
65°/ 52° 18°/ 11°
100%
Monday
Partly Cloudy
68°/ 48° 20°/
0%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Partly Cloudy
65°/ 48° 18°/
0%
Thursday
Rain Showers
62°/ 48° 17°/
40%
Friday
Rain Showers
62°/ 48° 17°/
40%
Saturday
Rain Showers
65°18°
30%

Day: Mostly sunny. Highs in the upper 60s. Southeast winds around 5 mph.

Night: Mostly cloudy. Lows in the lower 50s. Southeast winds around 5 mph.

Northern Middlesex, CT

Afternoon
Partly Cloudy
68°/ 52° 20°/ 11°
0%
Sunday
Rain Showers
65°/ 55° 18°/ 13°
100%
Monday
Rain Showers
68°/ 48° 20°/
30%
Tuesday
Mostly Cloudy
65°/ 48° 18°/
0%
Wednesday
Partly Cloudy
65°/ 48° 18°/
0%
Thursday
Rain Showers
65°/ 48° 18°/
40%
Friday
Rain Showers
65°/ 48° 18°/
40%
Saturday
Rain Showers
68°20°
30%

Day: Partly sunny. Highs in the upper 60s. East winds around 5 mph.

Night: Mostly cloudy. Lows in the lower 50s. Southeast winds around 5 mph.

Northern Nassau, NY

Afternoon
Partly Cloudy
68°/ 58° 20°/ 14°
0%
Sunday
Rain Showers
72°/ 58° 22°/ 14°
90%
Monday
Rain Showers
68°/ 55° 20°/ 13°
30%
Tuesday
Rain Showers
65°/ 55° 18°/ 13°
30%
Wednesday
Mostly Cloudy
65°/ 55° 18°/ 13°
0%
Thursday
Rain Showers
65°/ 55° 18°/ 13°
40%
Friday
Rain Showers
65°/ 55° 18°/ 13°
40%
Saturday
Rain Showers
68°20°
30%

Day: Partly sunny. Near steady temperature in the upper 60s. East winds 5 to 10 mph.

Night: Mostly cloudy. Lows in the upper 50s. Southeast winds 5 to 10 mph.

Southern New London, CT

Afternoon
Partly Cloudy
68°/ 52° 20°/ 11°
0%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
100%
Monday
Rain Showers
68°/ 50° 20°/ 10°
50%
Tuesday
Mostly Cloudy
65°/ 48° 18°/
0%
Wednesday
Partly Cloudy
65°/ 48° 18°/
0%
Thursday
Rain Showers
65°/ 48° 18°/
40%
Friday
Rain Showers
65°/ 50° 18°/ 10°
40%
Saturday
Rain Showers
68°20°
40%

Day: Partly sunny. Highs in the upper 60s. Southeast winds around 5 mph.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 50s. East winds around 5 mph.

Southern Nassau, NY

Afternoon
Partly Cloudy
72°/ 62° 22°/ 17°
0%
Sunday
Rain Showers
72°/ 60° 22°/ 16°
80%
Monday
Rain Showers
70°/ 58° 21°/ 14°
40%
Tuesday
Rain Showers
68°/ 55° 20°/ 13°
30%
Wednesday
Mostly Cloudy
68°/ 55° 20°/ 13°
0%
Thursday
Rain Showers
68°/ 55° 20°/ 13°
40%
Friday
Rain Showers
68°/ 55° 20°/ 13°
40%
Saturday
Rain Showers
70°21°
30%

Day: Partly sunny. Highs in the lower 70s. East winds around 10 mph.

Night: Mostly cloudy. Lows in the lower 60s. Southeast winds 5 to 10 mph.

Northern New London, CT

Afternoon
Partly Cloudy
68°/ 50° 20°/ 10°
0%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
100%
Monday
Rain Showers
68°/ 48° 20°/
50%
Tuesday
Mostly Cloudy
65°/ 48° 18°/
0%
Wednesday
Partly Cloudy
65°/ 48° 18°/
0%
Thursday
Rain Showers
65°/ 48° 18°/
40%
Friday
Rain Showers
65°/ 48° 18°/
40%
Saturday
Rain Showers
68°20°
40%

Day: Partly sunny. Highs in the upper 60s. East winds around 5 mph.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows around 50. East winds around 5 mph.

Northern Westchester, NY

Afternoon
Sunny
68°/ 55° 20°/ 13°
0%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
100%
Monday
Partly Cloudy
68°/ 48° 20°/
30%
Tuesday
Rain Showers
62°/ 48° 17°/
30%
Wednesday
Partly Cloudy
65°/ 48° 18°/
0%
Thursday
Rain Showers
62°/ 48° 17°/
40%
Friday
Rain Showers
62°/ 50° 17°/ 10°
40%
Saturday
Rain Showers
68°20°
30%

Day: Mostly sunny. Near steady temperature in the upper 60s. Southeast winds around 5 mph.

Night: Mostly cloudy. Lows in the mid 50s. Southeast winds around 5 mph.

Southern Westchester, NY

Afternoon
Partly Cloudy
68°/ 58° 20°/ 14°
0%
Sunday
Rain Showers
70°/ 58° 21°/ 14°
90%
Monday
Rain Showers
68°/ 52° 20°/ 11°
30%
Tuesday
Rain Showers
65°/ 52° 18°/ 11°
30%
Wednesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Thursday
Rain Showers
65°/ 52° 18°/ 11°
40%
Friday
Rain Showers
65°/ 52° 18°/ 11°
40%
Saturday
Rain Showers
68°20°
30%

Day: Partly sunny. Near steady temperature in the upper 60s. East winds 5 to 10 mph.

Night: Mostly cloudy. Lows in the upper 50s. Southeast winds 5 to 10 mph.

Oakville, CT

Tonight
Mostly Cloudy
52°11°
0%
Sunday
Rain Showers
65°/ 52° 18°/ 11°
100%
Monday
Partly Cloudy
68°/ 48° 20°/
0%
Tuesday
Mostly Cloudy
62°17°
0%
Wed Night
Mostly Cloudy
62°17°
0%
Thursday
Rain Showers
62°/ 48° 17°/
40%
Fri Night
Rain Showers
48°
40%
Saturday
Rain Showers
65°18°
30%

Night: Mostly cloudy. Lows in the lower 50s. Light and variable winds.

Southern Queens, NY

Afternoon
Partly Cloudy
68°/ 62° 20°/ 17°
0%
Sunday
Rain Showers
72°/ 62° 22°/ 17°
80%
Monday
Rain Showers
68°/ 58° 20°/ 14°
40%
Tuesday
Rain Showers
65°/ 55° 18°/ 13°
30%
Wednesday
Mostly Cloudy
65°/ 55° 18°/ 13°
0%
Thursday
Rain Showers
65°/ 55° 18°/ 13°
40%
Friday
Rain Showers
65°/ 58° 18°/ 14°
40%
Saturday
Rain Showers
68°20°
30%

Day: Partly sunny. Near steady temperature in the upper 60s. Southeast winds 10 to 15 mph.

Night: Mostly cloudy. Lows in the lower 60s. Southeast winds 10 to 15 mph.

Northern Queens, NY

Afternoon
Partly Cloudy
72°/ 62° 22°/ 17°
0%
Sunday
Rain Showers
72°/ 62° 22°/ 17°
90%
Monday
Rain Showers
68°/ 58° 20°/ 14°
30%
Tuesday
Rain Showers
65°/ 55° 18°/ 13°
30%
Wednesday
Mostly Cloudy
65°/ 55° 18°/ 13°
0%
Thursday
Rain Showers
65°/ 55° 18°/ 13°
40%
Friday
Rain Showers
65°/ 55° 18°/ 13°
40%
Saturday
Rain Showers
68°20°
30%

Day: Partly sunny. Highs in the lower 70s. East winds 5 to 10 mph.

Night: Mostly cloudy. Lows in the lower 60s. Southeast winds 5 to 10 mph.

Putnam County, NY

Afternoon
Sunny
68°/ 55° 20°/ 13°
0%
Sunday
Rain Showers
65°/ 52° 18°/ 11°
100%
Monday
Partly Cloudy
65°/ 48° 18°/
0%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Partly Cloudy
62°/ 48° 17°/
0%
Thursday
Partly Cloudy
62°/ 48° 17°/
40%
Friday
Rain Showers
62°/ 48° 17°/
40%
Saturday
Rain Showers
65°18°
30%

Day: Mostly sunny. Near steady temperature in the upper 60s. Southeast winds around 5 mph.

Night: Mostly cloudy. Lows in the mid 50s. Southeast winds around 5 mph.

Names listed above may include county names.

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