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.
19 04:51 NE 17 9.66 Smoke SCT020 BKN120 20.6 16.7 78% 76.23 1015.6
19 03:51 NE 19 9.66 Smoke OVC019 21.1 16.7 76% 76.2 1015.4
19 02:51 NE 17 9.66 Smoke SCT019 20.6 16.7 78% 76.23 1015.6
19 01:51 NE 22 8.05 Smoke FEW040 FEW110 20.6 16.7 78% 76.17 1015.1
19 00:51 NE 24 6.44 Smoke SCT110 21.1 17.2 26.1 21.1 79% 76.17 1014.8
18 23:51 N 24 6.44 Smoke FEW020 FEW120 21.7 16.1 71% 76.17 1015.1
18 22:51 NE 20 8.05 Smoke FEW030 22.2 16.7 71% 76.15 1014.6
18 21:51 NE 24 8.05 Smoke FEW024 FEW060 23.9 18.3 71% 25 76.12 1014.2
18 20:51 NE 24 8.05 Smoke FEW060 24.4 17.8 67% 25 76.05 1013.1
18 19:51 NE 20 9.66 Smoke FEW060 25 17.8 64% 26 75.95 1012.1
18 18:51 NE 22 G 35 9.66 Smoke SCT060 26.1 18.9 32.8 26.1 65% 27 75.95 1012.0
18 17:51 NE 22 12.87 A Few Clouds FEW060 FEW250 28.3 20.6 63% 30 75.92 1011.6
18 16:51 NE 26 16.09 Partly Cloudy FEW042 FEW060 SCT250 28.9 21.7 65% 32 75.84 1010.6
18 15:51 N 22 G 37 16.09 Partly Cloudy FEW042 SCT060 SCT250 32.8 17.2 39% 33 75.79 1009.9
18 14:51 N 20 G 26 16.09 Mostly Cloudy SCT042 BKN065 BKN080 BKN250 31.7 21.1 53% 35 75.82 1010.1
18 13:51 NW 20 G 35 16.09 Mostly Cloudy SCT041 BKN065 BKN080 BKN250 30.6 21.7 59% 34 75.87 1010.7
18 12:51 NW 20 16.09 Mostly Cloudy SCT036 SCT048 BKN080 BKN140 BKN250 29.4 22.8 31.1 26.1 68% 33 75.87 1010.7
18 11:51 NW 19 16.09 Light Rain BKN034CB BKN045 OVC080 28.3 22.2 70% 31 75.87 1011.0
18 10:51 NW 17 16.09 Mostly Cloudy SCT036 BKN085 BKN140 BKN250 30 21.7 61% 33 75.87 1010.9
18 09:51 W 19 G 31 16.09 Mostly Cloudy FEW070 SCT100 BKN200 BKN250 30 22.2 63% 33 75.87 1010.9
18 08:51 W 20 G 31 16.09 Mostly Cloudy FEW080 SCT110 BKN200 BKN250 27.8 22.2 72% 30 75.84 1010.4
18 07:51 W 17 16.09 Mostly Cloudy FEW120 SCT200 BKN250 26.7 22.2 76% 29 75.82 1010.1
18 06:51 W 20 16.09 Mostly Cloudy FEW150 BKN250 BKN300 26.1 22.2 27.2 26.1 79% 28 75.87 1010.7
18 05:51 W 19 G 31 16.09 Mostly Cloudy BKN250 BKN300 26.1 22.2 79% 28 75.87 1010.7
18 04:51 W 17 16.09 Partly Cloudy SCT250 26.7 22.2 76% 29 75.87 1011.0
18 03:51 W 17 16.09 A Few Clouds FEW250 26.1 22.2 79% 28 75.9 1011.1
18 02:51 SW 13 16.09 A Few Clouds FEW250 26.7 22.2 76% 29 75.9 1011.0
18 01:51 SW 15 16.09 Fair CLR 27.2 22.2 74% 30 75.92 1011.5
18 00:51 SW 13 16.09 A Few Clouds FEW250 27.2 22.2 32.2 27.2 74% 30 75.97 1012.1
17 23:51 SW 11 16.09 A Few Clouds FEW250 27.8 22.2 72% 30 76 1012.4
17 22:51 SW 11 16.09 Partly Cloudy FEW120 SCT250 28.3 22.2 70% 31 76.02 1012.8
17 21:51 W 13 16.09 Mostly Cloudy BKN250 28.9 21.7 65% 32 76.05 1013.2
17 20:51 W 13 16.09 Mostly Cloudy FEW045 BKN250 30 21.7 61% 33 76.02 1012.7
17 19:51 SW 17 16.09 Partly Cloudy FEW045 SCT250 31.1 22.2 59% 35 76 1012.6
17 18:51 W 19 16.09 Partly Cloudy FEW045 SCT150 SCT250 32.2 21.7 33.3 30 54% 36 75.97 1012.2
17 17:51 W 20 16.09 Mostly Cloudy SCT045TCU SCT090 BKN250 32.8 22.2 54% 37 76 1012.4
17 16:51 NW 15 16.09 Mostly Cloudy SCT045 BKN250 33.3 21.7 51% 37 76.05 1013.3
17 15:51 W 11 16.09 Mostly Cloudy FEW050 FEW100 SCT180 BKN250 32.2 21.1 52% 35 76.07 1013.7
17 14:51 W 19 14.48 Mostly Cloudy FEW050 SCT100 BKN180 BKN250 30 22.2 63% 33 76.15 1014.7
17 13:51 W 17 12.87 Mostly Cloudy SCT045 SCT085 BKN110 32.2 21.1 52% 35 76.17 1014.8
17 12:51 SW 17 9.66 Smoke SCT045TCU BKN080 32.2 21.1 32.8 25.6 52% 35 76.2 1015.3
17 11:51 SW 15 6.44 Smoke SCT045 SCT100 32.2 20.6 50% 35 76.25 1015.9
17 10:51 Vrbl 9 3.22 Smoke SCT100 30.6 22.2 61% 34 76.28 1016.4
17 09:51 SW 11 2.82 Smoke FEW012 BKN110 BKN250 28.9 22.2 67% 32 76.3 1016.7
17 08:51 S 6 2.41 Smoke FEW015 BKN120 27.8 21.7 69% 30 76.33 1016.8
17 07:51 S 7 2.01 Smoke SCT019 BKN120 26.7 21.7 74% 29 76.33 1016.8
17 06:51 Calm 2.01 Smoke VV018 25.6 20 25.6 23.9 71% 27 76.33 1016.8
17 05:51 Calm 1.61 Smoke VV016 25 19.4 71% 26 76.33 1017.1
17 04:51 Calm 2.41 Smoke VV020 23.9 19.4 76% 24 76.33 1016.9
17 03:51 Calm 2.82 Smoke VV018 25 18.9 69% 26 76.35 1017.3
17 02:51 SE 6 2.82 Smoke VV020 24.4 18.9 72% 25 76.35 1017.4
17 01:51 E 9 2.82 Smoke VV020 25 19.4 71% 26 76.35 1017.2
17 00:51 NE 11 2.82 Smoke VV018 25 20 29.4 25 74% 26 76.35 1017.1
16 23:51 E 11 2.41 Smoke VV018 25.6 18.9 67% 27 76.33 1017.0
16 22:51 E 13 1.61 Smoke VV017 25.6 18.9 67% 27 76.35 1017.3
16 21:51 Vrbl 9 1.21 Smoke VV015 26.7 16.7 54% 27 76.35 1017.4
16 20:51 E 11 0.80 Smoke VV015 27.2 13.9 44% 27 76.33 1017.0
16 19:51 E 11 1.21 Smoke VV015 28.3 13.3 40% 28 76.28 1016.5
16 18:51 E 17 1.21 Smoke VV019 29.4 11.1 32.8 29.4 32% 28 76.28 1016.3
16 17:51 E 13 1.21 Smoke VV019 29.4 13.9 39% 29 76.28 1016.2
16 16:51 NE 20 1.21 Smoke VV019 30.6 15.6 40% 30 76.28 1016.3
16 15:51 NE 19 1.61 Smoke VV020 31.7 18.3 45% 33 76.28 1016.3
16 14:51 NE 11 1.61 Smoke VV020 32.2 20.6 50% 35 76.3 1016.5
16 13:51 NE 15 1.61 Smoke BKN024 OVC028 31.7 20.6 52% 34 76.33 1016.8
16 12:51 Vrbl 6 2.82 Smoke OVC023 32.2 20.6 32.2 24.4 50% 35 76.35 1017.2
16 11:51 Vrbl 6 2.82 Smoke BKN019 31.7 20 50% 34 76.38 1017.6
16 10:51 Vrbl 7 2.82 Smoke BKN019 BKN046 29.4 20.6 59% 32 76.4 1017.9
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
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)