Weather observations for the past three days for
Chicago, Chicago-O'Hare International Airport
| Date | Time (cst) | 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. | ||||||||||||||||
| 27 | 17:51 | SW 9 | 16.09 | Mostly Cloudy | FEW050 FEW100 BKN250 | 16.7 | -4.4 | 18.3 | 12.8 | 23% | 75.44 | 1005.9 | |||||
| 27 | 16:51 | SW 19 | 16.09 | Mostly Cloudy | SCT090 BKN250 | 17.8 | -5 | 21% | 75.44 | 1006.1 | |||||||
| 27 | 15:51 | SW 20 G 33 | 16.09 | Mostly Cloudy | BKN090 | 18.3 | -5 | 20% | 75.49 | 1006.6 | |||||||
| 27 | 14:51 | S 24 G 33 | 16.09 | Mostly Cloudy | BKN090 | 16.7 | -3.3 | 25% | 75.54 | 1007.3 | |||||||
| 27 | 13:51 | SW 28 G 44 | 16.09 | Mostly Cloudy | BKN100 BKN250 | 16.1 | -3.9 | 25% | 75.62 | 1008.2 | |||||||
| 27 | 12:51 | SW 28 G 50 | 16.09 | Mostly Cloudy | SCT100 BKN120 BKN250 | 13.9 | -3.3 | 30% | 75.69 | 1009.5 | |||||||
| 27 | 11:51 | SW 30 G 46 | 16.09 | Mostly Cloudy | FEW110 BKN250 | 12.8 | -2.8 | 12.8 | -1.1 | 34% | 75.79 | 1010.7 | |||||
| 27 | 10:51 | SW 22 G 39 | 16.09 | Mostly Cloudy | FEW100 BKN250 | 11.1 | -2.8 | 38% | 75.84 | 1011.6 | |||||||
| 27 | 09:51 | S 13 | 16.09 | Mostly Cloudy | FEW090 BKN250 | 7.8 | 0.6 | 61% | 6 | 75.9 | 1012.3 | ||||||
| 27 | 08:51 | S 15 | 9.66 | Fog/Mist | FEW003 SCT090 BKN250 | 3.3 | 1.1 | 86% | 0 | 75.95 | 1012.9 | ||||||
| 27 | 07:51 | S 9 | 0.80 | Freezing Fog | BKN001 | -0.6 | -1.1 | 96% | -3 | 75.92 | 1012.9 | ||||||
| 27 | 06:51 | S 9 | 1.61 | Fog/Mist | BKN002 BKN250 | -1.1 | -2.2 | 92% | -4 | 75.9 | 1012.5 | ||||||
| 27 | 05:51 | S 7 | 14.48 | A Few Clouds | FEW005 | -1.1 | -2.2 | 1.7 | -2.2 | 92% | -3 | 75.9 | 1012.5 | ||||
| 27 | 04:51 | SW 7 | 16.09 | A Few Clouds | FEW005 | -0.6 | -1.7 | 92% | -3 | 75.87 | 1012.2 | ||||||
| 27 | 03:51 | SW 7 | 16.09 | Fair | CLR | 0 | -1.7 | 88% | -2 | 75.87 | 1012.0 | ||||||
| 27 | 02:51 | SW 9 | 16.09 | Fair | CLR | 0.6 | -1.7 | 85% | -2 | 75.84 | 1011.6 | ||||||
| 27 | 01:51 | SW 7 | 16.09 | Fair | CLR | 1.1 | -1.1 | 85% | -1 | 75.87 | 1012.0 | ||||||
| 27 | 00:51 | S 11 | 16.09 | A Few Clouds | FEW200 | 1.1 | -1.7 | 82% | -2 | 75.87 | 1012.3 | ||||||
| 26 | 23:51 | SW 13 | 16.09 | Fair | CLR | 1.7 | -1.7 | 4.4 | 1.7 | 78% | -2 | 75.9 | 1012.4 | ||||
| 26 | 22:51 | SW 9 | 16.09 | Fair | CLR | 1.7 | -2.2 | 76% | -1 | 75.9 | 1012.3 | ||||||
| 26 | 21:51 | SW 9 | 16.09 | Fair | CLR | 2.2 | -3.3 | 67% | -0 | 75.87 | 1012.1 | ||||||
| 26 | 20:51 | SW 6 | 16.09 | Fair | CLR | 2.8 | -4.4 | 59% | 75.87 | 1012.1 | |||||||
| 26 | 19:51 | S 7 | 16.09 | Fair | CLR | 2.8 | -5 | 57% | 1 | 75.87 | 1012.1 | ||||||
| 26 | 18:51 | S 9 | 16.09 | A Few Clouds | FEW055 | 3.3 | -6.1 | 51% | 1 | 75.87 | 1012.1 | ||||||
| 26 | 17:51 | S 6 | 16.09 | Partly Cloudy | FEW060 FEW190 SCT250 | 4.4 | -6.1 | 5 | 1.7 | 47% | 75.84 | 1012.0 | |||||
| 26 | 16:51 | SW 9 | 16.09 | Mostly Cloudy | SCT060 BKN250 | 5 | -6.7 | 43% | 3 | 75.82 | 1011.6 | ||||||
| 26 | 15:51 | S 13 | 16.09 | Mostly Cloudy | FEW030 BKN055 BKN250 | 4.4 | -7.2 | 43% | 2 | 75.84 | 1011.8 | ||||||
| 26 | 14:51 | SW 11 G 26 | 16.09 | Mostly Cloudy | FEW030 SCT050 BKN070 BKN250 | 4.4 | -7.2 | 43% | 2 | 75.84 | 1011.9 | ||||||
| 26 | 13:51 | SW 15 | 16.09 | Overcast | FEW028 BKN040 OVC070 | 3.3 | -8.3 | 43% | 0 | 75.84 | 1012.0 | ||||||
| 26 | 12:51 | SW 17 | 16.09 | Mostly Cloudy | BKN041 BKN055 | 3.3 | -8.3 | 43% | -0 | 75.9 | 1012.4 | ||||||
| 26 | 11:51 | S 7 | 16.09 | Overcast | SCT045 OVC080 | 2.2 | -8.3 | 2.2 | -7.2 | 46% | 0 | 75.92 | 1013.0 | ||||
| 26 | 10:51 | S 9 | 16.09 | Overcast | FEW050 OVC080 | 0.6 | -7.8 | 54% | -2 | 75.95 | 1013.4 | ||||||
| 26 | 09:51 | S 15 | 16.09 | Partly Cloudy | SCT080 SCT250 | 0.6 | -7.2 | 56% | -3 | 75.95 | 1013.3 | ||||||
| 26 | 08:51 | S 9 | 16.09 | Partly Cloudy | FEW080 SCT250 | -1.1 | -7.2 | 64% | -4 | 75.95 | 1013.4 | ||||||
| 26 | 07:51 | E 6 | 16.09 | Mostly Cloudy | FEW035 FEW100 BKN250 | -3.9 | -10.6 | 60% | 75.9 | 1012.7 | |||||||
| 26 | 06:51 | N 7 | 16.09 | Mostly Cloudy | FEW035 FEW100 BKN250 | -6.1 | -12.2 | 62% | -9 | 75.87 | 1012.4 | ||||||
| 26 | 05:51 | Calm | 16.09 | A Few Clouds | FEW035 | -7.2 | -13.3 | -2.8 | -7.2 | 62% | 75.87 | 1012.4 | |||||
| 26 | 04:51 | N 6 | 16.09 | A Few Clouds | FEW040 | -6.7 | -13.3 | 60% | 75.84 | 1012.0 | |||||||
| 26 | 03:51 | N 7 | 16.09 | A Few Clouds | FEW100 | -5.6 | -13.3 | 55% | -9 | 75.87 | 1012.4 | ||||||
| 26 | 02:51 | Calm | 16.09 | A Few Clouds | FEW100 | -5 | -13.3 | 53% | 75.87 | 1012.3 | |||||||
| 26 | 01:51 | N 9 | 16.09 | A Few Clouds | FEW110 | -6.1 | -13.9 | 54% | -10 | 75.9 | 1012.7 | ||||||
| 26 | 00:51 | N 11 | 16.09 | Partly Cloudy | SCT140 SCT200 | -5 | -13.3 | 53% | -9 | 75.9 | 1012.5 | ||||||
| 25 | 23:51 | NW 7 | 16.09 | Partly Cloudy | SCT140 SCT250 | -2.2 | -12.2 | 1.1 | -2.2 | 47% | -5 | 75.87 | 1012.3 | ||||
| 25 | 22:51 | NW 7 | 16.09 | Mostly Cloudy | FEW100 BKN170 BKN250 | -1.7 | -12.2 | 45% | -4 | 75.79 | 1011.1 | ||||||
| 25 | 21:51 | NW 6 | 16.09 | Overcast | FEW120 BKN180 OVC250 | -1.1 | -12.8 | 41% | 75.77 | 1010.8 | |||||||
| 25 | 20:51 | W 7 | 16.09 | Overcast | OVC250 | -1.1 | -12.2 | 43% | -3 | 75.74 | 1010.7 | ||||||
| 25 | 19:51 | NW 6 | 16.09 | Mostly Cloudy | BKN250 | -0.6 | -13.3 | 38% | 75.67 | 1009.7 | |||||||
| 25 | 18:51 | NW 6 | 16.09 | A Few Clouds | FEW250 | 0 | -13.3 | 36% | 75.64 | 1009.1 | |||||||
| 25 | 17:51 | W 13 | 16.09 | A Few Clouds | FEW250 | 1.1 | -13.3 | 3.3 | 0 | 34% | -2 | 75.59 | 1008.3 | ||||
| 25 | 16:51 | W 20 G 31 | 16.09 | A Few Clouds | FEW250 | 2.2 | -12.8 | 32% | -2 | 75.54 | 1007.8 | ||||||
| 25 | 15:51 | W 19 G 31 | 16.09 | A Few Clouds | FEW200 FEW250 | 2.2 | -12.2 | 34% | -2 | 75.49 | 1006.9 | ||||||
| 25 | 14:51 | NW 17 G 31 | 16.09 | A Few Clouds | FEW200 FEW250 | 2.8 | -11.7 | 34% | -1 | 75.44 | 1006.3 | ||||||
| 25 | 13:51 | W 19 G 33 | 16.09 | Partly Cloudy | FEW038 SCT200 SCT250 | 2.2 | -12.2 | 34% | -2 | 75.41 | 1006.1 | ||||||
| 25 | 12:51 | W 20 G 35 | 16.09 | A Few Clouds | FEW035 FEW110 | 1.7 | -11.7 | 37% | -3 | 75.41 | 1006.1 | ||||||
| 25 | 11:51 | W 17 G 33 | 16.09 | A Few Clouds | FEW033 | 0 | -10 | 0.6 | -2.8 | 47% | -4 | 75.44 | 1006.5 | ||||
| 25 | 10:51 | W 15 G 30 | 16.09 | Partly Cloudy | SCT030 | -0.6 | -9.4 | 52% | -5 | 75.39 | 1005.6 | ||||||
| 25 | 09:51 | W 22 G 33 | 16.09 | Partly Cloudy | SCT028 | -1.1 | -9.4 | 54% | -7 | 75.36 | 1005.5 | ||||||
| 25 | 08:51 | NW 24 G 35 | 16.09 | Partly Cloudy | SCT024 | -2.2 | -8.9 | 60% | -8 | 75.31 | 1004.6 | ||||||
| 25 | 07:51 | NW 26 G 43 | 16.09 | A Few Clouds | FEW026 | -2.8 | -8.9 | 63% | -9 | 75.23 | 1003.6 | ||||||
| 25 | 06:51 | W 20 | 16.09 | A Few Clouds | FEW028 | -2.8 | -7.2 | 72% | -8 | 75.16 | 1002.5 | ||||||
| 25 | 05:51 | W 17 | 16.09 | A Few Clouds | FEW028 | -2.2 | -6.7 | 0 | -2.8 | 72% | -7 | 75.08 | 1001.6 | ||||
| 25 | 04:51 | W 17 | 16.09 | Fair | CLR | -2.2 | -5.6 | 78% | -7 | 75.06 | 1001.3 | ||||||
| 25 | 03:51 | SW 19 | 16.09 | Fair | CLR | -2.2 | -5.6 | 78% | -7 | 75.06 | 1001.3 | ||||||
| 25 | 02:51 | SW 15 | 16.09 | Fair | CLR | -1.7 | -5.6 | 75% | -6 | 75.06 | 1001.2 | ||||||
| 25 | 01:51 | SW 11 | 16.09 | Fair | CLR | -1.7 | -5.6 | 75% | -5 | 75.08 | 1001.5 | ||||||
| 25 | 00:51 | W 11 | 16.09 | Fair | CLR | -0.6 | -6.1 | 67% | -4 | 75.06 | 1001.4 | ||||||
| 24 | 23:51 | W 9 | 16.09 | Fair | CLR | 0 | -6.1 | 3.9 | 0 | 64% | -3 | 75.01 | 1000.7 | ||||
| 24 | 22:51 | W 13 | 16.09 | A Few Clouds | FEW027 | 1.1 | -6.1 | 59% | -2 | 74.98 | 1000.2 | ||||||
| 24 | 21:51 | W 17 G 35 | 16.09 | Partly Cloudy | SCT027 | 3.3 | -5.6 | 52% | -0 | 74.93 | 999.4 | ||||||
| 24 | 20:51 | W 24 G 35 | 16.09 | Overcast | OVC033 | 3.3 | -5 | 55% | -1 | 74.93 | 999.4 | ||||||
| 24 | 19:51 | SW 20 G 35 | 16.09 | Overcast | OVC040 | 3.3 | -7.2 | 46% | -1 | 74.93 | 999.6 | ||||||
| 24 | 18:51 | SW 26 G 41 | 16.09 | Overcast | SCT047 BKN065 OVC100 | 3.3 | -7.8 | 44% | -1 | 74.9 | 999.4 | ||||||
| Date | Time (cst) | 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) | |||||||||||||||