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.
10 05:51 S 6 16.09 Shallow Fog BKN049 22.2 20.6 91% 75.72 1008.8
10 04:51 Calm 11.27 Partly Cloudy SCT050 20.6 19.4 93% 75.72 1008.9
10 03:51 Calm 9.66 Fog/Mist FEW003 FEW045 20.6 18.9 90% 75.72 1008.9
10 02:51 Calm 9.66 Fog/Mist FEW003 FEW030 20 18.9 93% 75.74 1009.4
10 01:51 E 6 9.66 Fog/Mist FEW003 FEW024 SCT039 20.6 18.9 90% 75.79 1010.0
10 00:51 NE 9 9.66 Fog/Mist FEW003 FEW036 20.6 18.9 30 20.6 90% 75.87 1010.7
09 23:51 NE 9 16.09 Partly Cloudy FEW004 SCT039 SCT055 23.3 20.6 85% 75.84 1010.4
09 22:51 E 9 16.09 Mostly Cloudy SCT038 BKN049 26.1 20.6 72% 28 75.84 1010.4
09 21:51 W 6 16.09 Partly Cloudy SCT048 27.2 21.1 69% 29 75.79 1010.0
09 19:51 W 13 16.09 A Few Clouds FEW040 FEW250 28.9 21.1 63% 31 75.74 1009.3
09 18:51 W 9 16.09 Partly Cloudy FEW040 FEW075 SCT250 30 21.7 31.1 28.3 61% 33 75.77 1009.5
09 17:51 W 15 16.09 Mostly Cloudy FEW040 SCT075 BKN200 BKN250 30.6 21.7 59% 34 75.77 1009.7
09 16:51 SW 13 16.09 Mostly Cloudy BKN045 BKN070 BKN250 30 21.7 61% 33 75.79 1009.8
09 15:51 W 17 G 31 16.09 Mostly Cloudy BKN040 BKN075 BKN250 30 21.1 59% 33 75.82 1010.3
09 14:51 W 20 G 28 16.09 Mostly Cloudy BKN038 BKN075 BKN250 30 21.7 61% 33 75.84 1010.5
09 13:51 SW 13 16.09 Mostly Cloudy FEW032 BKN043 BKN080 30 22.2 63% 33 75.9 1011.4
09 12:51 SW 15 16.09 Mostly Cloudy BKN028 BKN044 28.9 22.8 28.9 22.2 70% 32 75.95 1011.8 0.23
09 11:51 SW 19 G 28 16.09 Mostly Cloudy SCT019 BKN025 BKN031 27.8 22.8 74% 31 75.95 1011.9
09 10:51 S 17 16.09 Mostly Cloudy BKN013 BKN025 25.6 22.8 85% 27 75.97 1012.3
09 09:51 S 15 16.09 Overcast BKN011 OVC016 24.4 22.2 88% 25 76 1012.7 0.03 0.23
09 08:51 S 9 8.05 Rain Fog/Mist SCT007 OVC041 22.8 22.2 96% 76.02 1013.0 0.15
09 07:51 S 9 6.44 Light Rain Fog/Mist SCT006 BKN037 OVC070 22.8 21.7 94% 76.02 1013.1 0.05
09 06:51 SW 7 8.05 Fog/Mist OVC006 22.2 21.7 22.2 22.2 97% 76.02 1013.1
09 05:51 SW 11 16.09 Overcast OVC008 22.2 21.1 94% 76 1012.7
09 04:51 SW 7 16.09 Overcast BKN009 BKN014 BKN070 OVC250 22.2 21.1 94% 75.97 1012.5
09 03:51 SW 9 11.27 Overcast BKN006 OVC010 22.2 21.7 97% 75.97 1012.4
09 02:51 SW 7 16.09 Overcast OVC008 22.2 21.1 94% 76 1012.5
09 01:51 S 7 16.09 Overcast BKN007 BKN014 OVC020 22.2 21.1 94% 76.05 1013.2
09 00:51 SE 9 16.09 Overcast SCT010 OVC019 22.2 21.1 25 21.7 94% 76.02 1012.9 0.08
08 23:51 SE 9 16.09 Overcast FEW016 SCT036 BKN070 BKN140 OVC250 22.2 20.6 91% 76.05 1013.4
08 22:51 S 9 16.09 Overcast FEW018 BKN033 BKN100 OVC140 22.2 20.6 91% 76.1 1013.9 0.08
08 21:51 S 17 16.09 Mostly Cloudy FEW016 BKN034 BKN100 BKN160 BKN250 23.3 20 82% 76.1 1014.1
08 20:51 S 17 16.09 Mostly Cloudy FEW030 SCT100 BKN140 BKN190 BKN250 23.9 20.6 82% 24 76.05 1013.5
08 19:51 S 17 16.09 Mostly Cloudy FEW020 SCT130 BKN200 BKN250 24.4 20 77% 25 76 1012.7
08 18:51 S 19 G 31 16.09 Mostly Cloudy FEW017 SCT025 BKN150 BKN250 25 19.4 28.9 23.9 71% 26 76 1012.8 0.1
08 17:51 SE 17 G 37 16.09 Mostly Cloudy SCT025TCU SCT037 BKN080 BKN130 BKN250 25.6 22.2 82% 27 76 1012.8
08 16:51 SE 11 16.09 Overcast FEW025 SCT040 BKN085 BKN130 OVC220 25.6 22.8 85% 27 76.02 1013.2 0.03
08 15:51 S 22 G 31 16.09 Overcast SCT027 BKN050 BKN080 BKN130 OVC250 25.6 22.2 82% 27 76.02 1013.2 0.08 0.08
08 14:51 SE 24 G 41 16.09 Overcast SCT031 BKN048 BKN130 BKN160 OVC250 27.8 21.1 67% 30 76.02 1013.2
08 13:51 S 20 G 39 16.09 Overcast BKN033 BKN150 OVC250 28.3 21.1 65% 31 76.07 1013.7
08 12:51 SE 17 16.09 Mostly Cloudy FEW027 FEW041 BKN170 BKN250 28.9 21.7 28.9 20.6 65% 32 76.07 1013.7 0.03
08 11:51 SE 17 16.09 Overcast FEW110 BKN170 OVC250 26.7 20.6 69% 28 76.1 1014.2
08 10:51 SE 19 16.09 Mostly Cloudy FEW070 BKN160 BKN250 25.6 20.6 74% 27 76.15 1014.6
08 09:51 SE 9 16.09 Light Rain FEW048 SCT070 BKN110 OVC140 23.3 19.4 79% 76.17 1015.3 0.03 0.03
08 08:51 SE 15 16.09 Mostly Cloudy FEW047 SCT120 BKN190 BKN250 23.3 17.8 71% 76.2 1015.4
08 06:51 E 13 16.09 Overcast FEW055 SCT100 BKN150 OVC250 20.6 18.3 22.2 18.3 87% 76.15 1014.9 0.48
08 05:51 E 13 9.66 Light Rain Fog/Mist FEW030 SCT070 OVC100 20.6 18.3 87% 76.12 1014.6 0.15
08 04:51 S 6 12.87 Thunderstorm SCT035 BKN050CB OVC100 19.4 18.3 93% 76.15 1014.9
08 03:51 E 7 3.22 Thunderstorm Heavy Rain Fog/Mist SCT035 BKN070CB OVC100 18.3 17.2 93% 76.07 1013.8 0.33 0.33
08 02:51 SE 9 16.09 Light Rain FEW055 BKN100 18.9 14.4 75% 76.12 1014.3
08 01:51 NE 7 16.09 Mostly Cloudy SCT070 SCT110 BKN250 19.4 13.9 71% 76.07 1013.9
08 00:51 SE 6 16.09 Mostly Cloudy BKN060 BKN090 BKN250 19.4 13.9 21.7 18.9 71% 76.15 1014.7
07 23:51 NE 7 16.09 Mostly Cloudy BKN065 BKN075 BKN220 19.4 13.3 68% 76.1 1014.2
07 22:51 NE 11 16.09 Overcast FEW055 BKN180 OVC220 19.4 13.3 68% 76.1 1014.2
07 21:51 NE 15 16.09 Overcast FEW055 FEW075 SCT130 BKN180 OVC250 20 13.3 65% 76.12 1014.3
07 20:51 N 15 16.09 Overcast FEW055 FEW075 BKN140 BKN190 OVC250 21.1 12.8 59% 76.07 1013.8
07 19:51 E 9 16.09 Light Rain FEW055 SCT085 BKN130 OVC250 21.1 13.9 64% 76.05 1013.6
07 18:51 E 7 16.09 Light Rain SCT055 BKN080 BKN100 BKN180 OVC250 21.1 15 28.3 21.1 68% 76.15 1014.7
07 17:51 NE 9 16.09 Light Rain SCT055 BKN070 BKN095 BKN240 OVC300 22.2 13.3 57% 76.12 1014.5
07 16:51 NE 15 16.09 Overcast FEW070 BKN100 BKN230 OVC300 23.9 13.3 52% 25 76.1 1014.1
07 15:51 NE 19 16.09 Overcast SCT070 BKN140 BKN240 OVC300 25 13.9 50% 26 76.05 1013.5
07 14:51 NE 20 16.09 Overcast SCT080 BKN240 OVC300 26.1 13.3 45% 26 76.05 1013.4
07 12:51 E 24 16.09 Mostly Cloudy FEW075 BKN250 28.3 12.2 28.3 19.4 37% 28 76.12 1014.2
07 11:51 E 26 16.09 Mostly Cloudy BKN250 27.8 12.8 40% 27 76.12 1014.3
07 10:51 E 19 G 33 16.09 Partly Cloudy SCT250 27.2 15 47% 27 76.12 1014.3
07 09:51 E 15 16.09 Mostly Cloudy BKN250 25 15.6 56% 26 76.17 1014.9
07 08:51 E 15 16.09 Mostly Cloudy BKN250 22.2 15.6 66% 76.17 1015.1
07 07:51 NE 11 16.09 Mostly Cloudy FEW085 BKN250 20.6 15 70% 76.15 1014.8
07 06:51 E 11 16.09 Mostly Cloudy FEW070 BKN085 BKN250 19.4 14.4 21.7 18.9 73% 76.1 1014.2
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)