Weather observations for the past three days for
Islip, Long Island Mac Arthur Airport
Metric (Imperial)
Date Time (est) 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.
27 02:56 N 9 16.09 Fair CLR -1.7 -7.2 66% -5 76.17 1015.5
27 01:56 N 9 16.09 Fair CLR -1.1 -6.7 66% -4 76.12 1014.9
27 00:56 NE 11 16.09 Fair CLR -0.6 -6.1 3.9 -0.6 67% -4 76.1 1014.4
26 23:56 N 19 16.09 Partly Cloudy FEW120 SCT250 1.1 -5.6 61% -3 76.07 1014.1
26 22:56 N 13 14.48 Mostly Cloudy BKN120 BKN250 -0.6 -3.3 82% -4 76.05 1013.7
26 21:56 Calm 16.09 Partly Cloudy SCT080 SCT250 0 -3.9 75% 75.97 1013.0
26 20:56 Calm 16.09 Mostly Cloudy BKN085 BKN110 BKN250 1.7 -3.3 70% 75.95 1012.5
26 19:56 Calm 16.09 Mostly Cloudy BKN080 BKN110 BKN250 2.8 -3.9 62% 75.95 1012.6
26 18:56 Calm 16.09 Overcast OVC080 3.9 -3.9 5.6 2.8 57% 75.92 1012.2
26 17:56 Calm 16.09 Overcast FEW050 BKN100 OVC250 3.3 -3.9 60% 75.87 1011.5
26 16:56 SW 6 16.09 Mostly Cloudy SCT100 BKN190 BKN250 4.4 -4.4 53% 75.84 1011.1
26 15:56 S 11 16.09 Mostly Cloudy BKN190 BKN250 4.4 -4.4 53% 2 75.79 1010.7
26 13:56 S 15 16.09 Mostly Cloudy BKN070 BKN150 3.3 -2.8 65% 0 75.87 1011.4
26 12:56 N 6 16.09 Mostly Cloudy SCT130 BKN160 BKN250 5 -5.6 5 -0.6 47% 75.87 1011.5
26 11:56 N 15 16.09 Mostly Cloudy BKN170 BKN250 3.9 -5 53% 1 75.9 1011.9
26 10:56 N 19 16.09 Mostly Cloudy FEW100 FEW200 BKN250 3.3 -4.4 57% -1 75.9 1011.7
26 09:56 N 24 16.09 Mostly Cloudy BKN200 BKN250 3.3 -4.4 57% -1 75.92 1012.3
26 08:56 NW 26 16.09 Mostly Cloudy BKN250 3.9 -4.4 55% -1 75.9 1011.9
26 07:56 W 9 16.09 Mostly Cloudy BKN250 1.7 -3.3 70% -1 75.87 1011.7
26 06:56 W 9 12.87 Mostly Cloudy BKN250 0 -2.2 2.8 -4.4 85% -3 75.82 1010.8
26 05:56 W 11 14.48 Partly Cloudy SCT250 -0.6 -2.2 89% -4 75.74 1009.8
26 04:56 Calm 4.02 Fog/Mist CLR -2.8 -3.3 96% 75.67 1008.8
26 03:56 Calm 9.66 Fog/Mist CLR -2.8 -3.3 96% 75.62 1008.3
26 02:56 Calm 12.87 Fair CLR -1.7 -3.3 89% 75.57 1007.6
26 01:56 S 7 14.48 Fair CLR 1.1 -1.7 82% -1 75.54 1007.0
26 00:56 W 9 16.09 Partly Cloudy SCT110 2.8 -0.6 3.9 0.6 79% 1 75.51 1006.7
25 23:56 SW 17 16.09 Mostly Cloudy BKN100 3.9 -0.6 73% 0 75.46 1006.1
25 22:56 SW 15 16.09 Mostly Cloudy BKN100 2.8 -0.6 79% -1 75.46 1006.2
25 21:56 SW 15 16.09 A Few Clouds FEW090 2.8 -1.1 76% -1 75.46 1006.2
25 20:56 SW 11 16.09 A Few Clouds FEW060 1.1 -1.7 82% -2 75.49 1006.4
25 19:56 SW 7 16.09 Fair CLR 1.1 -1.1 85% -1 75.46 1006.1
25 18:56 SW 11 16.09 Fair CLR 1.7 -0.6 3.3 1.7 85% -1 75.41 1005.4
25 17:56 SW 15 16.09 Fair CLR 1.7 -0.6 85% -2 75.36 1004.6
25 16:56 SW 13 16.09 Fair CLR 2.2 -1.1 79% -1 75.31 1004.2
25 15:56 SW 20 16.09 A Few Clouds FEW065 FEW120 FEW250 3.3 -1.7 70% -1 75.31 1004.0
25 14:56 SW 19 16.09 Partly Cloudy FEW080 SCT100 2.8 -1.7 73% -1 75.29 1003.9
25 13:56 S 22 16.09 Mostly Cloudy FEW065 BKN100 2.8 -1.7 73% -2 75.31 1004.2
25 12:56 SW 26 G 37 16.09 Mostly Cloudy FEW015 SCT065 BKN110 BKN250 2.2 -1.1 2.8 0 79% -3 75.36 1004.7 0.53
25 11:56 SW 22 G 39 14.48 Mostly Cloudy BKN008 BKN014 1.7 -0.6 85% -3 75.41 1005.6 0.03
25 10:56 SW 22 G 39 8.05 Light Snow Fog/Mist OVC006 0.6 0 96% -4 75.46 1006.3 0.38
25 09:56 SW 17 0.80 Light Snow Fog OVC006 0 -0.6 96% -4 75.49 1006.6 0.13
25 08:56 SW 17 0.80 Light Snow Fog OVC005 0 -0.6 96% -4 75.49 1006.6 0.08
25 07:56 SW 22 G 35 0.40 Light Snow Fog/Mist VV005 0 -0.6 96% -5 75.54 1007.1 0.05
25 06:56 SW 31 G 48 11.27 Light Snow BKN036 OVC050 2.2 -2.2 2.2 -10.6 73% -3 75.57 1007.5
25 05:56 S 19 16.09 Overcast BKN034 OVC065 1.7 -2.2 76% -2 75.57 1007.5
25 04:56 S 17 16.09 NULL NULL 0.6 -3.3 75% -4 75.59 1007.9
25 03:56 S 15 16.09 NULL NULL -0.6 -5.6 69% -5 75.72 1009.4
25 02:56 S 9 16.09 NULL NULL -7.8 -10.6 81% -12 75.84 1011.1
25 01:56 SE 7 16.09 NULL NULL -10 -13.3 77% -14 75.9 1012.1
25 00:56 Calm 16.09 NULL NULL -10 -12.8 -3.3 -11.7 80% 75.97 1012.9
24 23:56 Calm 16.09 A Few Clouds FEW250 -8.9 -12.8 74% 75.95 1012.6
24 22:56 SE 6 16.09 A Few Clouds FEW250 -9.4 -13.3 74% 75.95 1012.8
24 21:56 S 7 16.09 A Few Clouds FEW050 FEW250 -6.7 -11.1 71% -10 76.07 1014.2
24 20:56 W 6 16.09 A Few Clouds FEW050 FEW250 -8.3 -13.3 68% 76.1 1014.6
24 19:56 W 6 16.09 A Few Clouds FEW250 -4.4 -12.8 52% 76.05 1014.1
24 18:56 NW 11 16.09 A Few Clouds FEW050 FEW250 -3.9 -12.8 -1.1 -3.9 50% -8 75.97 1013.1
24 17:56 W 15 16.09 A Few Clouds FEW050 FEW250 -2.8 -13.3 45% -7 75.95 1012.5
24 16:56 W 22 16.09 Partly Cloudy FEW048 SCT250 -2.2 -13.3 43% -8 75.9 1011.8
24 15:56 W 24 G 33 16.09 Mostly Cloudy BKN048 -1.1 -13.3 39% -7 75.82 1011.0
24 14:56 NW 30 G 43 16.09 Mostly Cloudy BKN047 -1.1 -12.8 41% -7 75.82 1010.9
24 13:56 NW 20 G 37 16.09 Partly Cloudy SCT045 -1.7 -12.2 45% -7 75.79 1010.7
24 12:56 W 24 G 43 16.09 Partly Cloudy SCT040 -1.7 -11.7 -1.7 -3.9 47% -8 75.82 1011.0
24 11:56 W 22 G 41 16.09 A Few Clouds FEW036 -2.2 -11.1 51% -8 75.87 1011.6
24 10:56 NW 22 16.09 A Few Clouds FEW035 -2.8 -11.1 53% -9 75.87 1011.7
24 09:56 NW 22 G 35 16.09 A Few Clouds FEW035 FEW090 FEW250 -3.3 -11.1 55% -9 75.84 1011.4
24 08:56 NW 30 G 46 16.09 A Few Clouds FEW032 FEW090 FEW250 -3.3 -11.7 53% -10 75.84 1011.3
24 07:56 NW 22 16.09 A Few Clouds FEW032 FEW090 FEW120 FEW250 -3.3 -11.1 55% -9 75.82 1010.9
24 06:56 NW 22 16.09 Partly Cloudy FEW030 FEW090 SCT120 SCT250 -3.3 -9.4 -1.7 -3.3 63% -9 75.77 1010.2
24 05:56 W 24 16.09 Mostly Cloudy FEW040 BKN120 -2.8 -8.3 66% -9 75.72 1009.4
24 04:56 W 17 16.09 NULL NULL -2.2 -7.8 66% -7 75.67 1008.8
24 03:56 W 13 16.09 NULL NULL -2.8 -8.9 63% -7 75.62 1008.2
Date Time (est) 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)