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.
30 03:51 S 9 16.09 Overcast BKN065 BKN110 OVC130 20 10.6 55% 75.92 1011.7
30 02:51 S 11 16.09 Light Rain FEW065 FEW090 BKN110 OVC140 20.6 10.6 53% 75.95 1012.0
30 01:51 S 15 16.09 Overcast FEW065 BKN085 OVC150 21.1 10 49% 75.97 1012.3
30 00:51 S 17 16.09 Overcast BKN080 BKN140 OVC200 21.1 10 23.3 20 49% 75.97 1012.2
29 23:51 S 15 16.09 Mostly Cloudy SCT180 BKN250 20.6 9.4 49% 75.97 1012.6
29 22:51 S 15 16.09 Overcast BKN190 OVC250 20.6 9.4 49% 76 1012.8
29 21:51 S 9 16.09 Overcast BKN210 OVC250 20 12.8 63% 76 1012.8
29 20:51 SE 9 16.09 Overcast OVC250 20 13.3 65% 76.02 1013.2
29 19:51 SE 6 16.09 Overcast OVC250 21.1 12.2 57% 76 1013.1
29 18:51 S 6 16.09 Overcast OVC250 23.3 8.9 25.6 22.8 40% 76 1013.0
29 17:51 S 9 16.09 Overcast FEW200 OVC250 23.9 9.4 40% 25 76 1012.8
29 16:51 S 15 16.09 Mostly Cloudy FEW200 BKN250 23.9 9.4 40% 25 76 1013.1
29 15:51 S 19 G 30 16.09 Mostly Cloudy FEW200 BKN250 25 9.4 37% 26 76.05 1013.5
29 14:51 SW 15 16.09 Mostly Cloudy FEW200 BKN250 25.6 10 37% 26 76.1 1014.3
29 13:51 SW 15 16.09 Mostly Cloudy FEW200 BKN250 25 10.6 40% 26 76.17 1015.2
29 12:51 SW 15 16.09 Mostly Cloudy BKN250 23.9 10 23.9 12.2 42% 25 76.23 1015.9
29 11:51 S 9 16.09 Partly Cloudy SCT250 22.8 11.7 50% 76.23 1016.1
29 10:51 S 6 16.09 Partly Cloudy SCT250 20.6 11.7 57% 76.3 1017.0
29 09:51 SW 6 16.09 Partly Cloudy SCT250 18.3 12.2 68% 76.3 1017.2
29 08:51 S 9 11.27 Partly Cloudy FEW004 SCT250 15 13.3 90% 76.33 1017.5
29 07:51 Calm 6.44 Fog/Mist FEW003 FEW250 12.8 12.8 100% 76.33 1017.4
29 06:51 Calm 8.05 Shallow Fog Fog/Mist SCT002 SCT030 12.2 11.1 14.4 12.2 93% 76.33 1017.4
29 05:51 Calm 8.05 Shallow Fog Fog/Mist FEW005 12.2 11.7 97% 76.28 1017.0
29 03:51 Calm 16.09 Fair CLR 12.8 11.7 93% 76.28 1016.8
29 02:51 Calm 16.09 Fair CLR 13.3 12.2 93% 76.28 1016.9
29 01:51 Calm 16.09 Fair CLR 13.9 12.8 93% 76.33 1017.2
29 00:51 Calm 16.09 Fair CLR 13.9 12.8 18.9 13.9 93% 76.28 1016.9
28 23:51 Calm 16.09 Fair CLR 15.6 14.4 93% 76.3 1017.1
28 22:51 E 7 16.09 Fair CLR 16.1 13.9 87% 76.3 1017.2
28 21:51 Calm 16.09 Fair CLR 15.6 13.9 90% 76.33 1017.5
28 20:51 E 9 16.09 Fair CLR 17.2 13.9 81% 76.33 1017.3
28 19:51 E 9 16.09 Fair CLR 17.8 12.8 73% 76.33 1017.6
28 18:51 E 9 16.09 A Few Clouds FEW250 18.9 11.7 22.8 18.9 63% 76.33 1017.4
28 17:51 NE 15 16.09 A Few Clouds FEW250 20 10.6 55% 76.3 1017.3
28 16:51 NE 13 16.09 A Few Clouds FEW250 21.1 10.6 51% 76.33 1017.3
28 15:51 NE 19 16.09 A Few Clouds FEW250 21.7 11.7 53% 76.33 1017.4
28 14:51 Vrbl 9 16.09 A Few Clouds FEW027 FEW250 22.2 12.8 55% 76.35 1017.6
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
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)