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.
28 13:51 Vrbl 6 16.09 A Few Clouds FEW027 FEW250 22.2 10.6 48% 76.35 1017.9
28 12:51 Vrbl 9 16.09 A Few Clouds FEW027 21.7 12.8 22.2 11.1 57% 76.43 1018.7
28 11:51 NE 6 16.09 A Few Clouds FEW027 FEW090 20.6 12.8 61% 76.45 1019.0
28 10:51 N 13 16.09 Mostly Cloudy BKN100 BKN250 19.4 13.9 71% 76.48 1019.4
28 09:51 N 9 16.09 Mostly Cloudy BKN095 BKN250 17.2 12.8 76% 76.48 1019.6
28 08:51 N 6 16.09 Mostly Cloudy SCT095 BKN250 15.6 11.1 75% 76.48 1019.6
28 07:51 Calm 16.09 Partly Cloudy FEW110 SCT250 13.3 9.4 77% 76.48 1019.6
28 06:51 W 7 16.09 Mostly Cloudy BKN250 11.1 8.9 13.3 11.1 86% 76.48 1019.5
28 05:51 NW 7 16.09 Partly Cloudy SCT250 11.7 8.9 83% 76.43 1018.9
28 04:51 NW 6 16.09 A Few Clouds FEW250 11.7 9.4 86% 76.43 1018.8
28 03:51 Calm 16.09 A Few Clouds FEW250 11.7 10 89% 76.4 1018.5
28 02:51 N 7 16.09 A Few Clouds FEW250 12.2 10.6 90% 76.4 1018.5
28 01:51 N 6 16.09 A Few Clouds FEW250 12.2 11.1 93% 76.43 1018.6
28 00:51 NW 7 16.09 A Few Clouds FEW250 13.3 11.7 17.2 13.3 90% 76.4 1018.5
27 23:51 NW 6 16.09 A Few Clouds FEW250 13.9 12.2 90% 76.4 1018.6
27 22:51 NW 7 16.09 A Few Clouds FEW250 14.4 12.2 87% 76.4 1018.6
27 21:51 N 9 16.09 Partly Cloudy SCT250 15 12.2 83% 76.43 1018.8
27 20:51 N 7 16.09 Partly Cloudy SCT250 15 12.2 83% 76.4 1018.7
27 19:51 N 17 16.09 Mostly Cloudy BKN250 16.7 12.2 75% 76.4 1018.4
27 18:51 NE 15 16.09 Mostly Cloudy BKN250 17.2 11.1 22.2 17.2 68% 76.38 1018.4
27 17:51 NE 15 16.09 Mostly Cloudy BKN250 18.9 8.3 50% 76.38 1018.1
27 16:51 NE 13 16.09 Mostly Cloudy BKN250 20.6 8.9 47% 76.35 1018.0
27 15:51 NE 13 16.09 Mostly Cloudy BKN300 21.1 8.9 46% 76.38 1018.0
27 14:51 NE 17 16.09 Partly Cloudy SCT300 22.2 9.4 44% 76.4 1018.3
27 13:51 NE 15 16.09 Mostly Cloudy BKN300 21.7 6.7 38% 76.43 1018.7
27 12:51 Vrbl 6 16.09 Mostly Cloudy BKN300 20.6 8.3 21.1 10 45% 76.48 1019.6
27 11:51 Vrbl 7 16.09 Mostly Cloudy BKN300 20.6 8.3 45% 76.53 1020.1
27 10:51 NE 13 16.09 Mostly Cloudy FEW030 BKN300 19.4 8.3 49% 76.56 1020.4
27 09:51 N 6 16.09 Mostly Cloudy FEW002 BKN250 17.2 13.3 78% 76.56 1020.5
27 08:51 NW 6 1.61 Fog/Mist SCT002 SCT250 13.3 12.8 97% 76.53 1020.5
27 07:51 Calm 0.40 Fog SCT001 SCT250 11.7 11.1 96% 76.53 1020.4
27 06:51 W 6 0.80 Fog SCT001 BKN250 10 8.9 12.2 9.4 93% 76.5 1020.1
27 05:51 N 6 16.09 Partly Cloudy SCT250 10 8.3 89% 76.48 1019.7
27 04:51 Calm 16.09 A Few Clouds FEW250 10 8.9 93% 76.48 1019.4
27 03:51 N 6 16.09 Fair CLR 10.6 9.4 92% 76.45 1019.2
27 02:51 Calm 16.09 A Few Clouds FEW300 10.6 8.9 89% 76.48 1019.6
27 01:51 Calm 16.09 Fair CLR 11.7 9.4 86% 76.48 1019.7
27 00:51 N 6 16.09 Partly Cloudy SCT250 11.7 9.4 15.6 11.7 86% 76.5 1020.1
26 23:51 NE 9 16.09 Partly Cloudy SCT250 12.8 9.4 80% 76.56 1020.4
26 22:51 NE 6 16.09 Partly Cloudy SCT250 12.8 8.9 77% 76.56 1020.5
26 21:51 Calm 16.09 Fair CLR 13.3 8.9 75% 76.56 1020.5
26 20:51 E 11 16.09 Mostly Cloudy BKN250 14.4 9.4 72% 76.53 1020.4
26 19:51 E 9 16.09 Mostly Cloudy BKN250 14.4 9.4 72% 76.53 1020.3
26 18:51 NE 11 16.09 Mostly Cloudy BKN250 15 7.8 20.6 15 62% 76.53 1020.5
26 17:51 NE 11 16.09 Mostly Cloudy BKN250 16.7 8.3 58% 76.56 1020.5
26 16:51 NE 15 16.09 Mostly Cloudy BKN250 18.9 8.3 50% 76.56 1020.6
26 15:51 NE 13 16.09 Mostly Cloudy BKN250 18.9 7.2 47% 76.58 1021.0
26 14:51 E 13 16.09 Mostly Cloudy BKN300 20 7.8 45% 76.63 1021.5
26 13:51 NE 15 16.09 Mostly Cloudy BKN250 20 8.3 47% 76.66 1022.1
26 12:51 Calm 16.09 Mostly Cloudy BKN250 20 8.3 20 11.7 47% 76.73 1022.7
26 11:51 S 7 16.09 Partly Cloudy SCT250 18.9 8.9 52% 76.76 1023.3
26 10:51 E 6 16.09 Partly Cloudy FEW030 FEW120 SCT250 17.8 9.4 58% 76.81 1023.9
26 09:51 Vrbl 7 16.09 Partly Cloudy FEW005 SCT250 17.2 11.1 68% 76.81 1024.0
26 08:51 E 9 16.09 A Few Clouds FEW002 FEW250 16.1 11.7 75% 76.81 1023.9
26 07:51 E 6 16.09 A Few Clouds FEW120 FEW250 13.3 10.6 84% 76.78 1023.8
26 06:51 E 6 16.09 A Few Clouds FEW120 FEW250 11.7 9.4 14.4 10.6 86% 76.76 1023.3
26 05:51 NE 6 16.09 A Few Clouds FEW250 11.1 8.3 83% 76.73 1023.0
26 04:51 Calm 16.09 A Few Clouds FEW120 FEW250 11.7 9.4 86% 76.76 1023.2
26 03:51 N 6 16.09 A Few Clouds FEW300 11.7 10 89% 76.76 1023.3
26 02:51 Calm 16.09 Fair CLR 12.2 10 87% 76.73 1023.1
26 01:51 Calm 16.09 A Few Clouds FEW300 11.7 9.4 86% 76.76 1023.4
26 00:51 NE 9 16.09 A Few Clouds FEW300 13.9 10.6 16.1 13.3 81% 76.78 1023.8
25 23:51 NE 9 16.09 A Few Clouds FEW250 13.9 9.4 74% 76.84 1024.2
25 22:51 NE 11 16.09 A Few Clouds FEW120 FEW250 14.4 8.9 70% 76.86 1024.6
25 21:51 E 13 16.09 A Few Clouds FEW250 15 8.9 67% 76.86 1024.7
25 20:51 E 9 16.09 A Few Clouds FEW120 FEW250 15 10 72% 76.86 1024.7
25 19:51 E 9 16.09 Mostly Cloudy BKN110 BKN250 15 10 72% 76.86 1024.7
25 18:51 E 9 16.09 Mostly Cloudy BKN110 BKN250 16.1 10 17.8 16.1 67% 76.84 1024.4
25 17:51 E 11 16.09 Overcast BKN100 OVC250 17.2 9.4 60% 76.84 1024.4
25 16:51 E 11 16.09 Overcast OVC100 17.2 9.4 60% 76.86 1024.5
25 15:51 E 11 16.09 Overcast OVC100 17.8 9.4 58% 76.89 1025.0
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)