Weather observations for the past three days for
Chicago, Chicago-O'Hare International Airport
| Date | Time (cdt) | Wind (mph) | Vis. (mi.) | Weather | Sky Cond. | Temperature (ºF) | Relative Humidity | Wind Chill (°F) | Heat Index (°F) | Pressure | Precipitation (in) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Air | Dwpt | 6 hour | altimeter (in) | sea level (mb) | 1 hr | 3 hr | 6 hr | ||||||||||
| Max. | Min. | ||||||||||||||||
| 20 | 22:51 | Calm | 10.00 | Fair | CLR | 51.1 | 48 | 89% | 30.31 | 1026.4 | |||||||
| 20 | 21:51 | Calm | 10.00 | Fair | CLR | 53.1 | 48 | 83% | 30.31 | 1026.3 | |||||||
| 20 | 20:51 | Calm | 10.00 | Fair | CLR | 54 | 48 | 80% | 30.31 | 1026.5 | |||||||
| 20 | 19:51 | E 5 | 10.00 | Fair | CLR | 57 | 48 | 72% | 30.32 | 1026.9 | |||||||
| 20 | 18:51 | E 5 | 10.00 | Fair | CLR | 59 | 46 | 69.1 | 59 | 62% | 30.32 | 1027.0 | |||||
| 20 | 17:51 | E 6 | 10.00 | Fair | CLR | 62.1 | 45 | 54% | 30.32 | 1026.7 | |||||||
| 20 | 16:51 | E 10 | 10.00 | Fair | CLR | 64.9 | 45 | 49% | 30.32 | 1026.8 | |||||||
| 20 | 15:51 | NE 6 | 10.00 | Fair | CLR | 69.1 | 41 | 36% | 30.32 | 1026.8 | |||||||
| 20 | 14:51 | Calm | 10.00 | Fair | CLR | 69.1 | 39 | 33% | 30.33 | 1026.9 | |||||||
| 20 | 13:51 | Calm | 10.00 | Fair | CLR | 68 | 39.9 | 36% | 30.35 | 1027.9 | |||||||
| 20 | 12:51 | SE 5 | 10.00 | Fair | CLR | 66.9 | 41 | 66.9 | 45 | 39% | 30.37 | 1028.5 | |||||
| 20 | 11:51 | S 3 | 10.00 | Fair | CLR | 66 | 44.1 | 45% | 30.39 | 1029.1 | |||||||
| 20 | 10:51 | SE 5 | 10.00 | A Few Clouds | FEW300 | 63 | 46.9 | 56% | 30.41 | 1029.8 | |||||||
| 20 | 09:51 | Calm | 6.00 | Fog/Mist | FEW300 | 55 | 51.1 | 87% | 30.41 | 1029.8 | |||||||
| 20 | 08:51 | Calm | 5.00 | Fog/Mist | FEW003 FEW250 | 51.1 | 50 | 96% | 30.41 | 1029.9 | |||||||
| 20 | 07:51 | SW 3 | 1.75 | Fog/Mist | SCT002 SCT250 | 45 | 45 | 100% | 30.4 | 1029.5 | |||||||
| 20 | 06:51 | Calm | 0.50 | Fog | BKN002 BKN250 | 46.9 | 46 | 48.9 | 44.1 | 97% | 30.39 | 1029.4 | |||||
| 20 | 05:51 | N 3 | 0.50 | Fog | VV001 | 46.9 | 46 | 97% | 30.38 | 1028.8 | |||||||
| 20 | 04:51 | N 5 | 4.00 | Fog/Mist | SCT002 SCT300 | 45 | 44.1 | 97% | 43 | 30.37 | 1028.6 | ||||||
| 20 | 03:51 | Calm | 10.00 | A Few Clouds | FEW002 FEW300 | 45 | 43 | 93% | 30.37 | 1028.4 | |||||||
| 20 | 02:51 | Calm | 10.00 | Fair | CLR | 46 | 44.1 | 93% | 30.37 | 1028.4 | |||||||
| 20 | 01:51 | N 6 | 10.00 | Fair | CLR | 46 | 43 | 89% | 44 | 30.36 | 1028.3 | ||||||
| 20 | 00:51 | Calm | 10.00 | Fair | CLR | 46.9 | 44.1 | 57.9 | 46.9 | 90% | 30.36 | 1028.2 | |||||
| 19 | 23:51 | Calm | 10.00 | A Few Clouds | FEW300 | 48.9 | 44.1 | 83% | 30.36 | 1028.3 | |||||||
| 19 | 22:51 | Calm | 10.00 | A Few Clouds | FEW300 | 51.1 | 45 | 80% | 30.37 | 1028.5 | |||||||
| 19 | 21:51 | Calm | 10.00 | A Few Clouds | FEW300 | 52 | 45 | 77% | 30.36 | 1028.3 | |||||||
| 19 | 20:51 | Calm | 10.00 | A Few Clouds | FEW300 | 55 | 44.1 | 67% | 30.36 | 1028.1 | |||||||
| 19 | 19:51 | Calm | 10.00 | Partly Cloudy | SCT300 | 55.9 | 43 | 62% | 30.35 | 1028.0 | |||||||
| 19 | 18:51 | E 6 | 10.00 | Mostly Cloudy | BKN300 | 57.9 | 43 | 68 | 57.9 | 58% | 30.35 | 1028.1 | |||||
| 19 | 17:51 | E 7 | 10.00 | Mostly Cloudy | BKN300 | 64 | 39.9 | 41% | 30.35 | 1027.7 | |||||||
| 19 | 16:51 | SW 5 | 10.00 | Mostly Cloudy | BKN300 | 66 | 37 | 34% | 30.34 | 1027.6 | |||||||
| 19 | 15:51 | S 6 | 10.00 | Partly Cloudy | SCT300 | 66.9 | 39 | 36% | 30.34 | 1027.5 | |||||||
| 19 | 14:51 | SW 6 | 10.00 | A Few Clouds | FEW300 | 66.9 | 39 | 36% | 30.35 | 1027.6 | |||||||
| 19 | 13:51 | S 6 | 10.00 | A Few Clouds | FEW300 | 66 | 39 | 37% | 30.36 | 1028.0 | |||||||
| 19 | 12:51 | S 5 | 10.00 | A Few Clouds | FEW300 | 64.9 | 39 | 64.9 | 43 | 39% | 30.38 | 1028.7 | |||||
| 19 | 11:51 | Calm | 10.00 | A Few Clouds | FEW300 | 63 | 41 | 45% | 30.4 | 1029.4 | |||||||
| 19 | 10:51 | SW 6 | 10.00 | A Few Clouds | FEW300 | 60.1 | 39.9 | 48% | 30.41 | 1029.7 | |||||||
| 19 | 09:51 | SW 3 | 10.00 | Fair | CLR | 55 | 39 | 55% | 30.41 | 1029.9 | |||||||
| 19 | 08:51 | S 3 | 10.00 | Fair | CLR | 51.1 | 39 | 64% | 30.41 | 1029.8 | |||||||
| 19 | 07:51 | S 3 | 10.00 | Fair | CLR | 45 | 37 | 74% | 30.4 | 1029.5 | |||||||
| 19 | 06:51 | S 3 | 10.00 | Fair | CLR | 43 | 37.9 | 50 | 43 | 82% | 30.4 | 1029.5 | |||||
| 19 | 05:51 | Calm | 10.00 | Fair | CLR | 44.1 | 37 | 76% | 30.4 | 1029.6 | |||||||
| 19 | 04:51 | Calm | 10.00 | Fair | CLR | 44.1 | 37 | 76% | 30.38 | 1029.0 | |||||||
| 19 | 03:51 | SW 3 | 10.00 | Fair | CLR | 46 | 37 | 71% | 30.37 | 1028.6 | |||||||
| 19 | 02:51 | SW 5 | 10.00 | Fair | CLR | 48 | 37 | 66% | 47 | 30.37 | 1028.6 | ||||||
| 19 | 01:51 | SW 6 | 10.00 | Fair | CLR | 50 | 36 | 59% | 48 | 30.37 | 1028.4 | ||||||
| 19 | 00:51 | S 7 | 10.00 | Fair | CLR | 50 | 36 | 57 | 48.9 | 59% | 48 | 30.36 | 1028.2 | ||||
| 18 | 23:51 | S 7 | 10.00 | Fair | CLR | 50 | 36 | 59% | 48 | 30.36 | 1028.3 | ||||||
| 18 | 22:51 | S 6 | 10.00 | Fair | CLR | 52 | 36 | 55% | 30.37 | 1028.4 | |||||||
| 18 | 21:51 | S 7 | 10.00 | Fair | CLR | 53.1 | 35.1 | 51% | 30.36 | 1028.1 | |||||||
| 18 | 20:51 | S 8 | 10.00 | Fair | CLR | 54 | 35.1 | 49% | 30.36 | 1028.2 | |||||||
| 18 | 19:51 | S 9 | 10.00 | Fair | CLR | 55 | 35.1 | 47% | 30.36 | 1028.2 | |||||||
| 18 | 18:51 | S 8 | 10.00 | Fair | CLR | 57 | 34 | 63 | 57 | 42% | 30.35 | 1027.9 | |||||
| 18 | 17:51 | S 8 G 20 | 10.00 | Fair | CLR | 61 | 32 | 34% | 30.34 | 1027.7 | |||||||
| 18 | 16:51 | S 9 G 21 | 10.00 | Fair | CLR | 63 | 33.1 | 33% | 30.34 | 1027.6 | |||||||
| 18 | 15:51 | S 13 G 22 | 10.00 | Fair | CLR | 63 | 34 | 34% | 30.34 | 1027.7 | |||||||
| 18 | 14:51 | SW 16 G 23 | 10.00 | Fair | CLR | 62.1 | 35.1 | 37% | 30.36 | 1028.2 | |||||||
| 18 | 13:51 | S 14 G 21 | 10.00 | A Few Clouds | FEW025 | 61 | 34 | 36% | 30.38 | 1029.0 | |||||||
| 18 | 12:51 | SW 13 G 22 | 10.00 | Fair | CLR | 59 | 35.1 | 59 | 42.1 | 41% | 30.42 | 1030.2 | |||||
| 18 | 11:51 | SW 16 G 24 | 10.00 | Fair | CLR | 57 | 33.1 | 41% | 30.43 | 1030.7 | |||||||
| 18 | 10:51 | S 15 G 22 | 10.00 | Fair | CLR | 55.9 | 34 | 44% | 30.45 | 1031.2 | |||||||
| 18 | 09:51 | SW 10 G 21 | 10.00 | Fair | CLR | 52 | 33.1 | 49% | 30.45 | 1031.5 | |||||||
| 18 | 08:51 | S 12 G 18 | 10.00 | A Few Clouds | FEW250 | 48 | 30.9 | 52% | 44 | 30.45 | 1031.6 | ||||||
| 18 | 07:51 | S 8 | 10.00 | A Few Clouds | FEW250 | 43 | 32 | 65% | 39 | 30.45 | 1031.5 | ||||||
| 18 | 06:51 | S 6 | 10.00 | A Few Clouds | FEW250 | 43 | 33.1 | 45 | 43 | 68% | 40 | 30.45 | 1031.4 | ||||
| 18 | 05:51 | SW 9 | 10.00 | Fair | CLR | 44.1 | 34 | 68% | 40 | 30.44 | 1031.0 | ||||||
| 18 | 04:51 | SW 6 | 10.00 | Fair | CLR | 44.1 | 34 | 68% | 41 | 30.43 | 1030.6 | ||||||
| 18 | 03:51 | S 7 | 10.00 | Fair | CLR | 45 | 34 | 66% | 42 | 30.41 | 1030.1 | ||||||
| 18 | 02:51 | S 7 | 10.00 | Fair | CLR | 44.1 | 35.1 | 71% | 41 | 30.41 | 1030.1 | ||||||
| 18 | 01:51 | S 6 | 10.00 | Fair | CLR | 45 | 35.1 | 68% | 42 | 30.41 | 1030.1 | ||||||
| 18 | 00:51 | S 10 | 10.00 | Fair | CLR | 45 | 36 | 52 | 45 | 71% | 40 | 30.41 | 1030.1 | ||||
| 17 | 23:51 | S 10 | 10.00 | Fair | CLR | 45 | 36 | 71% | 40 | 30.42 | 1030.3 | ||||||
| Date | Time (cdt) | Wind (mph) | Vis. (mi.) | Weather | Sky Cond. | Air | Dwpt | Max. | Min. | Relative Humidity | Wind Chill (°F) | Heat Index (°F) | altimeter (in) | sea level (mb) | 1 hr | 3 hr | 6 hr |
| 6 hour | |||||||||||||||||
| Temperature (ºF) | Pressure | Precipitation (in) | |||||||||||||||