Weather observations for the past three days for
Chicago, Chicago-O'Hare International Airport
| 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. | ||||||||||||||||
| 18 | 18:51 | NE 22 G 35 | 9.66 | Smoke | SCT060 | 26.1 | 18.9 | 32.8 | 26.1 | 65% | 27 | 75.95 | 1012.0 | ||||
| 18 | 17:51 | NE 22 | 12.87 | A Few Clouds | FEW060 FEW250 | 28.3 | 20.6 | 63% | 30 | 75.92 | 1011.6 | ||||||
| 18 | 16:51 | NE 26 | 16.09 | Partly Cloudy | FEW042 FEW060 SCT250 | 28.9 | 21.7 | 65% | 32 | 75.84 | 1010.6 | ||||||
| 18 | 15:51 | N 22 G 37 | 16.09 | Partly Cloudy | FEW042 SCT060 SCT250 | 32.8 | 17.2 | 39% | 33 | 75.79 | 1009.9 | ||||||
| 18 | 14:51 | N 20 G 26 | 16.09 | Mostly Cloudy | SCT042 BKN065 BKN080 BKN250 | 31.7 | 21.1 | 53% | 35 | 75.82 | 1010.1 | ||||||
| 18 | 13:51 | NW 20 G 35 | 16.09 | Mostly Cloudy | SCT041 BKN065 BKN080 BKN250 | 30.6 | 21.7 | 59% | 34 | 75.87 | 1010.7 | ||||||
| 18 | 12:51 | NW 20 | 16.09 | Mostly Cloudy | SCT036 SCT048 BKN080 BKN140 BKN250 | 29.4 | 22.8 | 31.1 | 26.1 | 68% | 33 | 75.87 | 1010.7 | ||||
| 18 | 11:51 | NW 19 | 16.09 | Light Rain | BKN034CB BKN045 OVC080 | 28.3 | 22.2 | 70% | 31 | 75.87 | 1011.0 | ||||||
| 18 | 10:51 | NW 17 | 16.09 | Mostly Cloudy | SCT036 BKN085 BKN140 BKN250 | 30 | 21.7 | 61% | 33 | 75.87 | 1010.9 | ||||||
| 18 | 09:51 | W 19 G 31 | 16.09 | Mostly Cloudy | FEW070 SCT100 BKN200 BKN250 | 30 | 22.2 | 63% | 33 | 75.87 | 1010.9 | ||||||
| 18 | 08:51 | W 20 G 31 | 16.09 | Mostly Cloudy | FEW080 SCT110 BKN200 BKN250 | 27.8 | 22.2 | 72% | 30 | 75.84 | 1010.4 | ||||||
| 18 | 07:51 | W 17 | 16.09 | Mostly Cloudy | FEW120 SCT200 BKN250 | 26.7 | 22.2 | 76% | 29 | 75.82 | 1010.1 | ||||||
| 18 | 06:51 | W 20 | 16.09 | Mostly Cloudy | FEW150 BKN250 BKN300 | 26.1 | 22.2 | 27.2 | 26.1 | 79% | 28 | 75.87 | 1010.7 | ||||
| 18 | 05:51 | W 19 G 31 | 16.09 | Mostly Cloudy | BKN250 BKN300 | 26.1 | 22.2 | 79% | 28 | 75.87 | 1010.7 | ||||||
| 18 | 04:51 | W 17 | 16.09 | Partly Cloudy | SCT250 | 26.7 | 22.2 | 76% | 29 | 75.87 | 1011.0 | ||||||
| 18 | 03:51 | W 17 | 16.09 | A Few Clouds | FEW250 | 26.1 | 22.2 | 79% | 28 | 75.9 | 1011.1 | ||||||
| 18 | 02:51 | SW 13 | 16.09 | A Few Clouds | FEW250 | 26.7 | 22.2 | 76% | 29 | 75.9 | 1011.0 | ||||||
| 18 | 01:51 | SW 15 | 16.09 | Fair | CLR | 27.2 | 22.2 | 74% | 30 | 75.92 | 1011.5 | ||||||
| 18 | 00:51 | SW 13 | 16.09 | A Few Clouds | FEW250 | 27.2 | 22.2 | 32.2 | 27.2 | 74% | 30 | 75.97 | 1012.1 | ||||
| 17 | 23:51 | SW 11 | 16.09 | A Few Clouds | FEW250 | 27.8 | 22.2 | 72% | 30 | 76 | 1012.4 | ||||||
| 17 | 22:51 | SW 11 | 16.09 | Partly Cloudy | FEW120 SCT250 | 28.3 | 22.2 | 70% | 31 | 76.02 | 1012.8 | ||||||
| 17 | 21:51 | W 13 | 16.09 | Mostly Cloudy | BKN250 | 28.9 | 21.7 | 65% | 32 | 76.05 | 1013.2 | ||||||
| 17 | 20:51 | W 13 | 16.09 | Mostly Cloudy | FEW045 BKN250 | 30 | 21.7 | 61% | 33 | 76.02 | 1012.7 | ||||||
| 17 | 19:51 | SW 17 | 16.09 | Partly Cloudy | FEW045 SCT250 | 31.1 | 22.2 | 59% | 35 | 76 | 1012.6 | ||||||
| 17 | 18:51 | W 19 | 16.09 | Partly Cloudy | FEW045 SCT150 SCT250 | 32.2 | 21.7 | 33.3 | 30 | 54% | 36 | 75.97 | 1012.2 | ||||
| 17 | 17:51 | W 20 | 16.09 | Mostly Cloudy | SCT045TCU SCT090 BKN250 | 32.8 | 22.2 | 54% | 37 | 76 | 1012.4 | ||||||
| 17 | 16:51 | NW 15 | 16.09 | Mostly Cloudy | SCT045 BKN250 | 33.3 | 21.7 | 51% | 37 | 76.05 | 1013.3 | ||||||
| 17 | 15:51 | W 11 | 16.09 | Mostly Cloudy | FEW050 FEW100 SCT180 BKN250 | 32.2 | 21.1 | 52% | 35 | 76.07 | 1013.7 | ||||||
| 17 | 14:51 | W 19 | 14.48 | Mostly Cloudy | FEW050 SCT100 BKN180 BKN250 | 30 | 22.2 | 63% | 33 | 76.15 | 1014.7 | ||||||
| 17 | 13:51 | W 17 | 12.87 | Mostly Cloudy | SCT045 SCT085 BKN110 | 32.2 | 21.1 | 52% | 35 | 76.17 | 1014.8 | ||||||
| 17 | 12:51 | SW 17 | 9.66 | Smoke | SCT045TCU BKN080 | 32.2 | 21.1 | 32.8 | 25.6 | 52% | 35 | 76.2 | 1015.3 | ||||
| 17 | 11:51 | SW 15 | 6.44 | Smoke | SCT045 SCT100 | 32.2 | 20.6 | 50% | 35 | 76.25 | 1015.9 | ||||||
| 17 | 10:51 | Vrbl 9 | 3.22 | Smoke | SCT100 | 30.6 | 22.2 | 61% | 34 | 76.28 | 1016.4 | ||||||
| 17 | 09:51 | SW 11 | 2.82 | Smoke | FEW012 BKN110 BKN250 | 28.9 | 22.2 | 67% | 32 | 76.3 | 1016.7 | ||||||
| 17 | 08:51 | S 6 | 2.41 | Smoke | FEW015 BKN120 | 27.8 | 21.7 | 69% | 30 | 76.33 | 1016.8 | ||||||
| 17 | 07:51 | S 7 | 2.01 | Smoke | SCT019 BKN120 | 26.7 | 21.7 | 74% | 29 | 76.33 | 1016.8 | ||||||
| 17 | 06:51 | Calm | 2.01 | Smoke | VV018 | 25.6 | 20 | 25.6 | 23.9 | 71% | 27 | 76.33 | 1016.8 | ||||
| 17 | 05:51 | Calm | 1.61 | Smoke | VV016 | 25 | 19.4 | 71% | 26 | 76.33 | 1017.1 | ||||||
| 17 | 04:51 | Calm | 2.41 | Smoke | VV020 | 23.9 | 19.4 | 76% | 24 | 76.33 | 1016.9 | ||||||
| 17 | 03:51 | Calm | 2.82 | Smoke | VV018 | 25 | 18.9 | 69% | 26 | 76.35 | 1017.3 | ||||||
| 17 | 02:51 | SE 6 | 2.82 | Smoke | VV020 | 24.4 | 18.9 | 72% | 25 | 76.35 | 1017.4 | ||||||
| 17 | 01:51 | E 9 | 2.82 | Smoke | VV020 | 25 | 19.4 | 71% | 26 | 76.35 | 1017.2 | ||||||
| 17 | 00:51 | NE 11 | 2.82 | Smoke | VV018 | 25 | 20 | 29.4 | 25 | 74% | 26 | 76.35 | 1017.1 | ||||
| 16 | 23:51 | E 11 | 2.41 | Smoke | VV018 | 25.6 | 18.9 | 67% | 27 | 76.33 | 1017.0 | ||||||
| 16 | 22:51 | E 13 | 1.61 | Smoke | VV017 | 25.6 | 18.9 | 67% | 27 | 76.35 | 1017.3 | ||||||
| 16 | 21:51 | Vrbl 9 | 1.21 | Smoke | VV015 | 26.7 | 16.7 | 54% | 27 | 76.35 | 1017.4 | ||||||
| 16 | 20:51 | E 11 | 0.80 | Smoke | VV015 | 27.2 | 13.9 | 44% | 27 | 76.33 | 1017.0 | ||||||
| 16 | 19:51 | E 11 | 1.21 | Smoke | VV015 | 28.3 | 13.3 | 40% | 28 | 76.28 | 1016.5 | ||||||
| 16 | 18:51 | E 17 | 1.21 | Smoke | VV019 | 29.4 | 11.1 | 32.8 | 29.4 | 32% | 28 | 76.28 | 1016.3 | ||||
| 16 | 17:51 | E 13 | 1.21 | Smoke | VV019 | 29.4 | 13.9 | 39% | 29 | 76.28 | 1016.2 | ||||||
| 16 | 16:51 | NE 20 | 1.21 | Smoke | VV019 | 30.6 | 15.6 | 40% | 30 | 76.28 | 1016.3 | ||||||
| 16 | 15:51 | NE 19 | 1.61 | Smoke | VV020 | 31.7 | 18.3 | 45% | 33 | 76.28 | 1016.3 | ||||||
| 16 | 14:51 | NE 11 | 1.61 | Smoke | VV020 | 32.2 | 20.6 | 50% | 35 | 76.3 | 1016.5 | ||||||
| 16 | 13:51 | NE 15 | 1.61 | Smoke | BKN024 OVC028 | 31.7 | 20.6 | 52% | 34 | 76.33 | 1016.8 | ||||||
| 16 | 12:51 | Vrbl 6 | 2.82 | Smoke | OVC023 | 32.2 | 20.6 | 32.2 | 24.4 | 50% | 35 | 76.35 | 1017.2 | ||||
| 16 | 11:51 | Vrbl 6 | 2.82 | Smoke | BKN019 | 31.7 | 20 | 50% | 34 | 76.38 | 1017.6 | ||||||
| 16 | 10:51 | Vrbl 7 | 2.82 | Smoke | BKN019 BKN046 | 29.4 | 20.6 | 59% | 32 | 76.4 | 1017.9 | ||||||
| 16 | 09:51 | E 6 | 2.82 | Smoke | BKN019 BKN032 | 28.3 | 21.1 | 65% | 31 | 76.4 | 1018.0 | ||||||
| 16 | 08:51 | NE 9 | 2.82 | Smoke | SCT019 BKN047 BKN250 | 26.7 | 20.6 | 69% | 28 | 76.43 | 1018.2 | ||||||
| 16 | 07:51 | NE 9 | 3.22 | Smoke | BKN043 BKN250 | 26.1 | 20.6 | 72% | 28 | 76.4 | 1017.9 | ||||||
| 16 | 06:51 | NE 15 | 4.02 | Smoke | FEW045 BKN250 | 24.4 | 20.6 | 26.1 | 23.9 | 79% | 25 | 76.38 | 1017.7 | ||||
| 16 | 05:51 | NE 11 | 3.22 | Smoke | FEW045 BKN250 | 23.9 | 20 | 79% | 24 | 76.35 | 1017.4 | ||||||
| 16 | 04:51 | N 11 | 4.83 | Smoke | SCT045 BKN250 | 24.4 | 18.9 | 72% | 25 | 76.33 | 1016.9 | ||||||
| 16 | 03:51 | Calm | 6.44 | Smoke | FEW030 BKN250 | 25 | 20.6 | 77% | 26 | 76.3 | 1016.6 | ||||||
| 16 | 02:51 | N 6 | 6.44 | Smoke | FEW150 OVC250 | 25 | 20 | 74% | 26 | 76.3 | 1016.6 | ||||||
| 16 | 01:51 | NE 7 | 8.05 | Smoke | FEW150 BKN250 | 26.1 | 20 | 69% | 27 | 76.3 | 1016.6 | ||||||
| 16 | 00:51 | N 17 | 12.87 | Mostly Cloudy | BKN250 | 26.1 | 21.7 | 32.2 | 26.1 | 77% | 28 | 76.35 | 1017.2 | ||||
| 15 | 23:51 | NE 7 | 14.48 | Fair | CLR | 26.7 | 22.8 | 79% | 29 | 76.35 | 1017.2 | ||||||
| 15 | 22:51 | NE 13 | 16.09 | Partly Cloudy | SCT250 | 26.7 | 23.3 | 82% | 29 | 76.35 | 1017.2 | ||||||
| 15 | 21:51 | N 9 | 16.09 | Mostly Cloudy | FEW045 BKN250 | 30 | 22.8 | 65% | 34 | 76.3 | 1016.6 | ||||||
| 15 | 20:51 | W 9 | 16.09 | Mostly Cloudy | FEW047 BKN250 | 30.6 | 22.2 | 61% | 34 | 76.28 | 1016.1 | ||||||
| 15 | 19:51 | W 9 | 16.09 | Mostly Cloudy | FEW047 BKN300 | 31.7 | 21.7 | 55% | 35 | 76.25 | 1015.8 | ||||||
| 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) | |||||||||||||||