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. | ||||||||||||||||
| 21 | 04:51 | W 7 | 10.00 | Thunderstorm | FEW046CB SCT095 BKN150 BKN250 | 75 | 70 | 84% | 75 | 29.65 | 1003.6 | ||||||
| 21 | 03:51 | W 8 G 18 | 10.00 | Thunderstorm | SCT040CB BKN095 OVC150 | 75.9 | 70 | 82% | 77 | 29.66 | 1003.8 | ||||||
| 21 | 02:51 | W 9 G 18 | 10.00 | Overcast | SCT037 BKN047 OVC150 | 77 | 70 | 79% | 79 | 29.66 | 1003.9 | ||||||
| 21 | 01:51 | W 10 | 9.00 | Mostly Cloudy | BKN044 BKN250 | 75.9 | 71.1 | 85% | 76 | 29.66 | 1003.9 | ||||||
| 21 | 00:51 | W 8 | 7.00 | Mostly Cloudy | SCT050 BKN250 | 75.9 | 71.1 | 79 | 75.9 | 85% | 76 | 29.67 | 1004.1 | ||||
| 20 | 23:51 | W 12 G 22 | 6.00 | Mostly Cloudy with Haze | FEW050 BKN250 | 75.9 | 71.1 | 85% | 76 | 29.67 | 1004.2 | ||||||
| 20 | 22:51 | SW 14 G 21 | 6.00 | Mostly Cloudy with Haze | BKN250 | 75.9 | 70 | 82% | 77 | 29.69 | 1004.6 | ||||||
| 20 | 21:51 | SW 12 | 6.00 | Mostly Cloudy with Haze | BKN250 | 75.9 | 69.1 | 79% | 77 | 29.69 | 1005.0 | ||||||
| 20 | 20:51 | SW 12 G 24 | 5.00 | Partly Cloudy with Haze | SCT250 | 78.1 | 68 | 71% | 80 | 29.7 | 1005.4 | ||||||
| 20 | 19:51 | SW 16 G 25 | 5.00 | Overcast with Haze | FEW090 SCT150 OVC250 | 79 | 68 | 69% | 81 | 29.71 | 1005.7 | ||||||
| 20 | 18:51 | SW 15 G 24 | 5.00 | Overcast with Haze | SCT085 BKN150 OVC250 | 79 | 68 | 82 | 77 | 69% | 81 | 29.77 | 1007.7 | ||||
| 20 | 17:51 | SW 14 G 20 | 5.00 | Mostly Cloudy with Haze | SCT200 BKN300 | 81 | 66 | 61% | 83 | 29.79 | 1008.3 | ||||||
| 20 | 16:51 | S 15 G 23 | 5.00 | A Few Clouds with Haze | FEW035 FEW250 | 82 | 64.9 | 56% | 84 | 29.75 | 1006.9 | ||||||
| 20 | 15:51 | S 15 | 5.00 | Partly Cloudy with Haze | SCT250 | 81 | 64.9 | 58% | 83 | 29.79 | 1008.4 | ||||||
| 20 | 14:51 | S 13 G 24 | 5.00 | Mostly Cloudy with Haze | FEW030 FEW150 SCT220 BKN250 | 79 | 64.9 | 62% | 81 | 29.84 | 1009.9 | ||||||
| 20 | 13:51 | SW 14 G 22 | 7.00 | Overcast | FEW035 BKN110 BKN180 OVC250 | 77 | 64 | 64% | 79 | 29.86 | 1010.9 | ||||||
| 20 | 12:51 | SW 14 G 21 | 7.00 | Overcast | SCT150 BKN200 OVC250 | 78.1 | 64 | 79 | 66.9 | 62% | 80 | 29.9 | 1012.1 | ||||
| 20 | 11:51 | SW 9 | 7.00 | Overcast | BKN200 OVC250 | 78.1 | 63 | 60% | 80 | 29.9 | 1012.2 | ||||||
| 20 | 10:51 | S 9 | 6.00 | Overcast with Haze | OVC250 | 77 | 63 | 62% | 79 | 29.93 | 1013.0 | ||||||
| 20 | 09:51 | SW 6 | 6.00 | Overcast with Haze | OVC250 | 75.9 | 62.1 | 62% | 78 | 29.94 | 1013.5 | ||||||
| 20 | 08:51 | SW 9 | 6.00 | Mostly Cloudy with Haze | FEW140 BKN250 | 73.9 | 61 | 64% | 29.92 | 1012.6 | |||||||
| 20 | 07:51 | SW 6 | 6.00 | Mostly Cloudy with Haze | FEW200 BKN250 | 71.1 | 62.1 | 73% | 29.94 | 1013.6 | |||||||
| 20 | 06:51 | SW 3 | 5.00 | Smoke | BKN250 | 66.9 | 61 | 68 | 64.9 | 81% | 29.94 | 1013.6 | |||||
| 20 | 05:51 | Calm | 4.00 | Smoke | FEW200 | 64.9 | 60.1 | 84% | 29.94 | 1013.5 | |||||||
| 20 | 04:51 | Calm | 5.00 | Fair with Haze | CLR | 66 | 60.1 | 81% | 29.95 | 1013.6 | |||||||
| 20 | 03:51 | Calm | 5.00 | A Few Clouds with Haze | FEW200 | 64.9 | 59 | 81% | 29.95 | 1013.8 | |||||||
| 20 | 02:51 | Calm | 5.00 | A Few Clouds with Haze | FEW200 | 66 | 60.1 | 81% | 29.97 | 1014.3 | |||||||
| 20 | 01:51 | Calm | 5.00 | A Few Clouds with Haze | FEW200 | 66.9 | 60.1 | 79% | 29.97 | 1014.5 | |||||||
| 20 | 00:51 | Calm | 5.00 | Fair with Haze | CLR | 68 | 60.1 | 75.9 | 68 | 76% | 29.98 | 1014.8 | |||||
| 19 | 23:51 | SE 5 | 6.00 | Fair with Haze | CLR | 69.1 | 59 | 70% | 29.99 | 1015.3 | |||||||
| 19 | 22:51 | E 5 | 6.00 | Fair with Haze | CLR | 70 | 60.1 | 71% | 30 | 1015.5 | |||||||
| 19 | 21:51 | E 6 | 8.00 | Fair | CLR | 70 | 59 | 68% | 30.01 | 1015.6 | |||||||
| 19 | 20:51 | E 7 | 7.00 | A Few Clouds | FEW250 | 72 | 57.9 | 61% | 29.99 | 1015.2 | |||||||
| 19 | 19:51 | NE 7 | 8.00 | A Few Clouds | FEW250 | 73 | 55.9 | 55% | 29.99 | 1015.2 | |||||||
| 19 | 18:51 | N 10 | 8.00 | A Few Clouds | FEW250 | 75.9 | 55.9 | 80.1 | 75.9 | 50% | 78 | 29.99 | 1015.0 | ||||
| 19 | 17:51 | NE 9 | 8.00 | A Few Clouds | FEW035 FEW250 | 78.1 | 55 | 45% | 79 | 29.99 | 1015.1 | ||||||
| 19 | 15:51 | NE 9 | 8.00 | A Few Clouds | FEW035 | 79 | 57 | 47% | 80 | 30.01 | 1015.7 | ||||||
| 19 | 14:51 | NE 8 | 8.00 | A Few Clouds | FEW035 FEW250 | 79 | 57.9 | 49% | 80 | 30.03 | 1016.3 | ||||||
| 19 | 13:51 | NE 9 | 8.00 | A Few Clouds | FEW033 FEW250 | 78.1 | 59 | 52% | 79 | 30.04 | 1016.7 | ||||||
| 19 | 12:51 | NE 10 | 8.00 | Partly Cloudy | FEW033 SCT250 | 77 | 59 | 77 | 71.1 | 54% | 79 | 30.04 | 1016.7 | ||||
| 19 | 11:51 | NE 12 | 8.00 | Partly Cloudy | SCT032 SCT250 | 75 | 60.1 | 60% | 77 | 30.05 | 1017.1 | ||||||
| 19 | 10:51 | E 9 | 8.00 | Partly Cloudy | SCT031 SCT250 | 75.9 | 60.1 | 58% | 78 | 30.05 | 1017.2 | ||||||
| 19 | 09:51 | NE 10 | 7.00 | A Few Clouds | FEW024 FEW250 | 75 | 61 | 62% | 77 | 30.05 | 1017.2 | ||||||
| 19 | 08:51 | NE 14 | 7.00 | A Few Clouds | FEW024 FEW250 | 73 | 61 | 66% | 30.04 | 1016.8 | |||||||
| 19 | 07:51 | E 9 | 6.00 | Smoke | FEW024 BKN250 | 72 | 61 | 68% | 30.04 | 1016.8 | |||||||
| 19 | 06:51 | NE 10 | 5.00 | Smoke | FEW024 FEW160 BKN250 | 71.1 | 62.1 | 71.1 | 69.1 | 73% | 30.03 | 1016.4 | |||||
| 19 | 05:51 | N 9 | 6.00 | Smoke | SCT024 BKN150 | 69.1 | 62.1 | 78% | 30.03 | 1016.3 | |||||||
| 19 | 04:51 | NE 10 | 6.00 | Smoke | SCT020 BKN120 | 69.1 | 62.1 | 78% | 30.01 | 1015.6 | |||||||
| 19 | 03:51 | NE 12 | 6.00 | Smoke | OVC019 | 70 | 62.1 | 76% | 30 | 1015.4 | |||||||
| 19 | 02:51 | NE 10 | 6.00 | Smoke | SCT019 | 69.1 | 62.1 | 78% | 30.01 | 1015.6 | |||||||
| 19 | 01:51 | NE 14 | 5.00 | Smoke | FEW040 FEW110 | 69.1 | 62.1 | 78% | 29.99 | 1015.1 | |||||||
| 19 | 00:51 | NE 15 | 4.00 | Smoke | SCT110 | 70 | 63 | 79 | 70 | 79% | 29.99 | 1014.8 | |||||
| 18 | 23:51 | N 15 | 4.00 | Smoke | FEW020 FEW120 | 71.1 | 61 | 71% | 29.99 | 1015.1 | |||||||
| 18 | 22:51 | NE 13 | 5.00 | Smoke | FEW030 | 72 | 62.1 | 71% | 29.98 | 1014.6 | |||||||
| 18 | 21:51 | NE 15 | 5.00 | Smoke | FEW024 FEW060 | 75 | 64.9 | 71% | 77 | 29.97 | 1014.2 | ||||||
| 18 | 20:51 | NE 15 | 5.00 | Smoke | FEW060 | 75.9 | 64 | 67% | 78 | 29.94 | 1013.1 | ||||||
| 18 | 19:51 | NE 13 | 6.00 | Smoke | FEW060 | 77 | 64 | 64% | 79 | 29.9 | 1012.1 | ||||||
| 18 | 18:51 | NE 14 G 22 | 6.00 | Smoke | SCT060 | 79 | 66 | 91 | 79 | 65% | 81 | 29.9 | 1012.0 | ||||
| 18 | 17:51 | NE 14 | 8.00 | A Few Clouds | FEW060 FEW250 | 82.9 | 69.1 | 63% | 87 | 29.89 | 1011.6 | ||||||
| 18 | 16:51 | NE 16 | 10.00 | Partly Cloudy | FEW042 FEW060 SCT250 | 84 | 71.1 | 65% | 89 | 29.86 | 1010.6 | ||||||
| 18 | 15:51 | N 14 G 23 | 10.00 | Partly Cloudy | FEW042 SCT060 SCT250 | 91 | 63 | 39% | 92 | 29.84 | 1009.9 | ||||||
| 18 | 14:51 | N 13 G 16 | 10.00 | Mostly Cloudy | SCT042 BKN065 BKN080 BKN250 | 89.1 | 70 | 53% | 94 | 29.85 | 1010.1 | ||||||
| 18 | 13:51 | NW 13 G 22 | 10.00 | Mostly Cloudy | SCT041 BKN065 BKN080 BKN250 | 87.1 | 71.1 | 59% | 93 | 29.87 | 1010.7 | ||||||
| 18 | 12:51 | NW 13 | 10.00 | Mostly Cloudy | SCT036 SCT048 BKN080 BKN140 BKN250 | 84.9 | 73 | 88 | 79 | 68% | 92 | 29.87 | 1010.7 | ||||
| 18 | 11:51 | NW 12 | 10.00 | Light Rain | BKN034CB BKN045 OVC080 | 82.9 | 72 | 70% | 88 | 29.87 | 1011.0 | ||||||
| 18 | 10:51 | NW 10 | 10.00 | Mostly Cloudy | SCT036 BKN085 BKN140 BKN250 | 86 | 71.1 | 61% | 92 | 29.87 | 1010.9 | ||||||
| 18 | 09:51 | W 12 G 20 | 10.00 | Mostly Cloudy | FEW070 SCT100 BKN200 BKN250 | 86 | 72 | 63% | 92 | 29.87 | 1010.9 | ||||||
| 18 | 08:51 | W 13 G 20 | 10.00 | Mostly Cloudy | FEW080 SCT110 BKN200 BKN250 | 82 | 72 | 72% | 87 | 29.86 | 1010.4 | ||||||
| 18 | 07:51 | W 10 | 10.00 | Mostly Cloudy | FEW120 SCT200 BKN250 | 80.1 | 72 | 76% | 84 | 29.85 | 1010.1 | ||||||
| 18 | 06:51 | W 13 | 10.00 | Mostly Cloudy | FEW150 BKN250 BKN300 | 79 | 72 | 81 | 79 | 79% | 82 | 29.87 | 1010.7 | ||||
| 18 | 05:51 | W 12 G 20 | 10.00 | Mostly Cloudy | BKN250 BKN300 | 79 | 72 | 79% | 82 | 29.87 | 1010.7 | ||||||
| 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) | |||||||||||||||