Weather observations for the past three days for
Chicago, Chicago-O'Hare International Airport
Metric (Imperial)
Date Time (cdt) 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.
16 09:51 E 6 2.82 Smoke BKN019 BKN032 28.3 21.1 65% 31 76.4 1018.0
16 08:51 NE 9 2.82 Smoke SCT019 BKN047 BKN250 26.7 20.6 69% 28 76.43 1018.2
16 07:51 NE 9 3.22 Smoke BKN043 BKN250 26.1 20.6 72% 28 76.4 1017.9
16 06:51 NE 15 4.02 Smoke FEW045 BKN250 24.4 20.6 26.1 23.9 79% 25 76.38 1017.7
16 05:51 NE 11 3.22 Smoke FEW045 BKN250 23.9 20 79% 24 76.35 1017.4
16 04:51 N 11 4.83 Smoke SCT045 BKN250 24.4 18.9 72% 25 76.33 1016.9
16 03:51 Calm 6.44 Smoke FEW030 BKN250 25 20.6 77% 26 76.3 1016.6
16 02:51 N 6 6.44 Smoke FEW150 OVC250 25 20 74% 26 76.3 1016.6
16 01:51 NE 7 8.05 Smoke FEW150 BKN250 26.1 20 69% 27 76.3 1016.6
16 00:51 N 17 12.87 Mostly Cloudy BKN250 26.1 21.7 32.2 26.1 77% 28 76.35 1017.2
15 23:51 NE 7 14.48 Fair CLR 26.7 22.8 79% 29 76.35 1017.2
15 22:51 NE 13 16.09 Partly Cloudy SCT250 26.7 23.3 82% 29 76.35 1017.2
15 21:51 N 9 16.09 Mostly Cloudy FEW045 BKN250 30 22.8 65% 34 76.3 1016.6
15 20:51 W 9 16.09 Mostly Cloudy FEW047 BKN250 30.6 22.2 61% 34 76.28 1016.1
15 19:51 W 9 16.09 Mostly Cloudy FEW047 BKN300 31.7 21.7 55% 35 76.25 1015.8
15 18:51 W 11 16.09 Mostly Cloudy FEW050 BKN300 32.2 21.7 35 32.2 54% 36 76.23 1015.5
15 17:51 W 9 16.09 Mostly Cloudy FEW050 BKN300 33.3 21.1 49% 37 76.23 1015.5
15 16:51 SW 13 16.09 Mostly Cloudy FEW050 BKN300 34.4 20.6 44% 37 76.23 1015.6
15 15:51 W 7 16.09 Mostly Cloudy FEW050 BKN300 34.4 20 43% 37 76.28 1016.2
15 14:51 SW 15 16.09 Mostly Cloudy FEW050 BKN300 34.4 21.7 48% 38 76.33 1016.7
15 13:51 SW 9 16.09 Partly Cloudy FEW050 SCT300 33.3 21.1 49% 37 76.35 1017.2
15 12:51 NW 15 16.09 Partly Cloudy FEW060 SCT300 33.3 20.6 33.9 25 47% 36 76.38 1017.4
15 11:51 W 15 16.09 Partly Cloudy FEW055 SCT300 32.2 22.2 56% 36 76.4 1017.8
15 10:51 SW 13 16.09 A Few Clouds FEW300 31.1 21.7 57% 34 76.4 1018.1
15 09:51 Calm 16.09 A Few Clouds FEW300 30 22.2 63% 33 76.43 1018.3
15 08:51 W 6 16.09 A Few Clouds FEW300 28.9 22.8 70% 32 76.45 1018.6
15 07:51 W 9 16.09 A Few Clouds FEW300 26.7 22.8 79% 29 76.45 1018.6
15 06:51 W 11 16.09 A Few Clouds FEW300 25 22.2 27.8 24.4 85% 26 76.45 1018.8
15 05:51 W 6 14.48 A Few Clouds FEW250 24.4 22.2 88% 25 76.45 1018.7
15 04:51 W 7 16.09 A Few Clouds FEW250 25 22.8 88% 26 76.45 1018.6
15 03:51 W 7 16.09 Fair CLR 25.6 22.8 85% 27 76.45 1018.4
15 02:51 W 7 16.09 Fair CLR 26.1 22.8 82% 28 76.45 1018.4
15 01:51 W 6 16.09 Fair CLR 26.7 22.8 79% 29 76.45 1018.4
15 00:51 W 9 16.09 Fair CLR 27.8 23.3 33.9 27.2 77% 31 76.45 1018.6
14 23:51 W 7 16.09 Fair CLR 28.3 23.9 77% 32 76.48 1019.0
14 22:51 SW 11 16.09 Fair CLR 28.9 23.9 74% 33 76.48 1018.9
14 21:51 W 7 16.09 Fair CLR 30 22.8 65% 34 76.48 1018.8
14 20:51 W 9 16.09 Fair CLR 31.1 22.8 61% 35 76.45 1018.5
14 19:51 W 13 16.09 Fair CLR 32.2 22.2 56% 36 76.43 1018.4
14 18:51 SW 15 16.09 A Few Clouds FEW055 FEW300 33.9 21.7 35.6 32.8 49% 38 76.43 1018.4
14 17:51 W 11 16.09 A Few Clouds FEW060 FEW300 35 19.4 40% 37 76.43 1018.4
14 16:51 W 13 16.09 A Few Clouds FEW060 FEW300 35 20 41% 38 76.45 1018.5
14 15:51 SW 7 16.09 A Few Clouds FEW060 FEW300 35.6 19.4 39% 38 76.48 1018.9
14 14:51 E 6 16.09 A Few Clouds FEW060 FEW300 34.4 18.9 40% 36 76.5 1019.4
14 12:51 W 11 16.09 A Few Clouds FEW250 32.8 20 33.3 24.4 47% 35 76.58 1020.3
14 11:51 W 7 16.09 A Few Clouds FEW250 32.2 20 48% 34 76.63 1021.0
14 10:51 NW 7 16.09 Partly Cloudy SCT250 31.1 20 52% 33 76.66 1021.2
14 09:51 NW 6 16.09 Partly Cloudy SCT250 30 21.7 61% 33 76.66 1021.4
14 08:51 NW 11 16.09 Partly Cloudy SCT250 27.8 21.1 67% 30 76.68 1021.7
14 07:51 NW 7 16.09 Partly Cloudy SCT250 26.1 20.6 72% 28 76.68 1021.7
14 06:51 W 6 16.09 A Few Clouds FEW250 24.4 20 26.1 23.3 77% 25 76.66 1021.4
14 05:51 Calm 16.09 A Few Clouds FEW250 23.9 20 79% 24 76.63 1021.1
14 04:51 Calm 16.09 Fair CLR 23.9 20 79% 24 76.61 1020.8
14 03:51 SW 6 16.09 Fair CLR 24.4 20 77% 25 76.61 1020.6
14 02:51 W 7 16.09 Fair CLR 25 20 74% 26 76.58 1020.3
14 01:51 W 7 16.09 Fair CLR 25.6 20 71% 27 76.58 1020.4
14 00:51 W 9 16.09 Fair CLR 26.1 19.4 32.8 26.1 67% 27 76.61 1020.6
13 23:51 W 7 16.09 Fair CLR 27.2 19.4 62% 29 76.61 1020.7
13 21:51 W 13 16.09 Fair CLR 28.9 19.4 57% 30 76.61 1020.6
13 20:51 W 13 16.09 A Few Clouds FEW300 30 18.9 51% 31 76.56 1019.9
13 19:51 W 15 16.09 A Few Clouds FEW300 31.1 18.3 46% 32 76.53 1019.6
13 18:51 W 9 16.09 Fair CLR 32.8 17.8 33.9 31.1 41% 34 76.5 1019.4
13 17:51 NW 9 16.09 Fair CLR 33.3 17.8 40% 34 76.5 1019.4
13 16:51 N 9 16.09 Fair CLR 33.3 17.8 40% 34 76.56 1020.2
13 15:51 NW 11 16.09 Fair CLR 33.3 18.3 41% 34 76.61 1020.5
13 14:51 NW 6 16.09 Fair CLR 32.8 17.8 41% 34 76.63 1021.0
13 13:51 NW 9 16.09 A Few Clouds FEW250 32.2 17.2 41% 33 76.66 1021.4
13 12:51 W 11 16.09 A Few Clouds FEW160 FEW250 31.7 17.2 31.7 22.8 42% 32 76.68 1021.7
13 11:51 W 9 16.09 A Few Clouds FEW140 FEW200 FEW250 31.1 17.8 45% 32 76.71 1022.1
13 10:51 NW 13 16.09 Partly Cloudy FEW100 FEW170 SCT250 30 17.2 46% 30 76.71 1022.0
Date Time (cdt) 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)