Weather observations for the past three days for
Islip, Long Island Mac Arthur Airport
Metric (Imperial)
Date Time (edt) Wind (kph) Vis. (km) Weather Sky Cond. Temperature (ºC) Relative Humidity Wind Chill (°C) Heat Index (°C) Pressure Precipitation (cm)
Air Dwpt 6 hour altimeter (cm) sea level (mb) 1 hr 3 hr 6 hr
Max. Min.
20 02:56 SW 13 16.09 Overcast OVC055 3.9 1.1 82% 1 76.61 1021.4
20 01:56 SW 11 16.09 Mostly Cloudy BKN055 3.3 0.6 3.3 0 83% 1 76.68 1022.3
20 00:56 S 9 16.09 Overcast OVC085 3.3 0 79% 1 76.68 1022.2
19 23:56 S 7 16.09 Overcast OVC075 2.8 -0.6 79% 1 76.68 1022.5
19 22:56 SE 6 16.09 Mostly Cloudy BKN075 2.2 -1.7 76% 76.71 1022.6
19 21:56 Calm 16.09 Mostly Cloudy BKN080 1.1 -2.8 76% 76.71 1022.7
19 20:56 S 6 16.09 Mostly Cloudy BKN070 1.7 -3.3 70% 76.73 1023.1
19 19:56 SW 7 16.09 A Few Clouds FEW060 1.7 -3.9 4.4 1.7 67% -0 76.71 1022.7
19 18:56 SW 9 16.09 A Few Clouds FEW065 2.8 -5 57% 1 76.66 1022.1
19 17:56 SW 9 16.09 Mostly Cloudy BKN065 3.3 -5 55% 1 76.68 1022.3
19 16:56 S 9 16.09 Overcast FEW020 OVC055 3.3 -4.4 57% 1 76.68 1022.3
19 15:56 S 15 16.09 Overcast FEW020 OVC060 3.9 -2.2 65% 1 76.73 1023.0
19 14:56 S 13 16.09 Overcast FEW019 SCT050 OVC070 4.4 -1.7 65% 2 76.78 1023.8
19 13:56 SW 15 16.09 Overcast BKN019 BKN050 OVC065 3.9 -1.7 3.9 -1.7 67% 1 76.86 1024.8
19 12:56 S 13 16.09 Overcast BKN023 OVC050 3.3 -1.7 70% 0 76.94 1025.6
19 11:56 S 11 16.09 Overcast BKN023 OVC075 3.3 -2.2 68% 1 76.94 1025.9
19 10:56 SE 13 16.09 Mostly Cloudy FEW024 BKN055 BKN070 3.3 -3.3 62% 0 76.99 1026.5
19 09:56 S 9 16.09 Mostly Cloudy FEW028 BKN060 BKN110 2.2 -3.9 64% -0 77.01 1026.8
19 08:56 E 6 16.09 Mostly Cloudy BKN110 1.1 -5.6 61% 76.99 1026.4
19 07:56 Calm 16.09 Mostly Cloudy FEW085 SCT100 SCT130 BKN250 -1.7 -5.6 -1.1 -3.3 75% 76.99 1026.6
19 06:56 Calm 16.09 Mostly Cloudy FEW085 SCT100 SCT130 BKN220 -2.8 -5.6 81% 76.99 1026.6
19 05:56 Calm 16.09 Overcast OVC130 -2.2 -6.1 75% 77.01 1026.7
19 04:56 Calm 16.09 A Few Clouds FEW120 -1.7 -6.7 69% 77.04 1027.2
19 03:56 Calm 16.09 Overcast OVC120 -2.2 -5.6 78% 77.04 1027.1
19 02:56 Calm 16.09 Overcast OVC120 -2.8 -6.7 75% 77.06 1027.5
19 01:56 Calm 16.09 Overcast OVC110 -3.3 -7.2 -1.1 -4.4 75% 77.11 1028.2
19 00:56 Calm 16.09 Fair CLR -3.3 -8.3 69% 77.11 1028.2
18 23:56 Calm 16.09 A Few Clouds FEW120 FEW250 -3.9 -8.3 72% 77.17 1028.8
18 22:56 Calm 16.09 A Few Clouds FEW250 -3.3 -8.3 69% 77.19 1029.4
18 21:56 Calm 16.09 Fair CLR -2.8 -8.9 63% 77.22 1029.5
18 20:56 S 6 16.09 Fair CLR -1.1 -8.9 56% 77.22 1029.4
18 19:56 S 9 16.09 Fair CLR -1.1 -8.9 1.1 -1.1 56% -4 77.17 1028.9
18 18:56 S 11 16.09 A Few Clouds FEW060 -1.1 -9.4 54% -5 77.19 1029.1
18 17:56 S 15 16.09 A Few Clouds FEW060 0 -10 47% -4 77.22 1029.4
18 16:56 S 19 16.09 A Few Clouds FEW050 FEW250 0.6 -11.1 42% -4 77.22 1029.5
18 15:56 S 17 16.09 A Few Clouds FEW050 FEW150 FEW250 0.6 -12.2 38% -4 77.22 1029.4
18 13:56 Calm 16.09 Mostly Cloudy SCT140 BKN180 0 -15 1.1 -2.8 32% 77.22 1029.6
18 12:56 NE 9 16.09 Mostly Cloudy BKN140 BKN250 0 -14.4 33% -3 77.22 1029.3
18 11:56 NE 19 16.09 Overcast BKN140 OVC250 -0.6 -13.3 38% -5 77.14 1028.5
18 10:56 N 26 16.09 Overcast BKN160 OVC250 -1.7 -13.3 41% -8 77.17 1028.6
18 09:56 NW 17 16.09 Overcast FEW050 BKN200 OVC250 -1.7 -13.3 41% -6 77.27 1030.0
18 08:56 NW 19 16.09 Mostly Cloudy BKN250 -2.2 -13.3 43% -7 77.24 1029.8
18 07:56 W 11 16.09 Mostly Cloudy FEW060 BKN250 -2.8 -13.3 -0.6 -3.9 45% -7 77.17 1028.7
18 06:56 NW 13 16.09 A Few Clouds FEW060 FEW250 -3.9 -13.9 46% -8 77.01 1026.8
18 05:56 NW 11 16.09 A Few Clouds FEW250 -3.3 -14.4 42% -7 76.99 1026.3
18 04:56 NW 20 16.09 Fair CLR -2.8 -15 39% -8 76.86 1024.8
18 03:56 NW 15 16.09 Fair CLR -2.2 -13.3 43% -7 76.78 1023.7
18 02:56 NW 19 16.09 A Few Clouds FEW040 -1.7 -11.7 47% -7 76.76 1023.4
18 01:56 NW 17 16.09 Partly Cloudy SCT045 SCT055 -1.1 -9.4 2.8 -1.1 54% -6 76.68 1022.5
18 00:56 W 15 16.09 Fair CLR -0.6 -10 49% -5 76.63 1021.5
17 23:56 W 13 16.09 A Few Clouds FEW060 0 -10.6 45% -4 76.56 1020.8
17 22:56 NW 22 G 43 16.09 Mostly Cloudy FEW030 SCT070 BKN085 0.6 -9.4 48% -4 76.48 1019.7
17 21:56 NW 13 16.09 Mostly Cloudy FEW055 SCT070 BKN090 1.7 -11.1 38% -2 76.38 1018.3
17 20:56 NW 30 G 43 16.09 Mostly Cloudy BKN080 2.2 -11.7 35% -3 76.3 1017.2
17 19:56 W 20 G 37 16.09 Mostly Cloudy BKN075 BKN250 2.2 -12.2 6.1 2.2 34% -2 76.2 1015.9
17 18:56 NW 24 16.09 Mostly Cloudy BKN070 BKN250 2.8 -12.2 33% -2 76.1 1014.5
17 17:56 NW 26 16.09 Mostly Cloudy BKN070 BKN250 3.3 -12.2 31% -1 75.97 1013.0
17 16:56 W 26 G 48 16.09 Mostly Cloudy BKN070 BKN250 5 -12.8 27% 1 75.87 1011.6
17 15:56 NW 26 G 43 16.09 Partly Cloudy SCT070 SCT250 6.1 -11.7 27% 2 75.82 1010.8
17 14:56 W 31 G 50 16.09 Partly Cloudy SCT060 SCT250 5.6 -10.6 30% 1 75.77 1010.2
17 13:56 NW 33 G 56 16.09 A Few Clouds and Breezy FEW055 FEW250 5 -11.1 5 1.7 30% 0 75.77 1010.2
17 12:56 W 30 G 46 16.09 A Few Clouds FEW055 FEW250 5 -9.4 35% 0 75.79 1010.4
17 11:56 W 31 G 48 16.09 A Few Clouds FEW050 FEW250 3.9 -9.4 38% -1 75.74 1009.8
17 10:56 W 37 G 50 16.09 A Few Clouds and Breezy FEW050 FEW250 3.3 -9.4 39% -2 75.74 1009.7
17 09:56 W 33 G 50 16.09 A Few Clouds and Breezy FEW050 FEW250 3.3 -10 37% -2 75.67 1008.8
17 08:56 W 44 G 57 16.09 A Few Clouds and Windy FEW045 FEW250 2.8 -9.4 41% -4 75.54 1007.2
17 07:56 W 26 G 41 16.09 Partly Cloudy SCT043 SCT250 1.7 -8.3 9.4 1.7 48% -3 75.49 1006.5
17 06:56 W 35 G 59 16.09 Partly Cloudy and Breezy SCT040 SCT250 1.7 -8.9 46% -4 75.34 1004.5
17 05:56 W 20 G 43 16.09 Partly Cloudy SCT030 3.3 -3.3 62% -1 75.21 1002.7
17 04:56 W 35 G 54 16.09 A Few Clouds and Breezy FEW029 3.9 -1.7 67% -1 75.08 1000.9
17 03:56 W 33 G 56 16.09 Overcast and Breezy FEW024 OVC070 6.7 2.2 73% 2 74.9 998.7
Date Time (edt) Wind (kph) Vis. (km) Weather Sky Cond. Air Dwpt Max. Min. Relative Humidity Wind Chill (°C) Heat Index (°C) altimeter (cm) sea level (mb) 1 hr 3 hr 6 hr
6 hour
Temperature (ºC) Pressure Precipitation (cm)