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 | 12:51 | W 8 | 10.00 | Mostly Cloudy | BKN250 | 69.1 | 45 | 69.1 | 51.1 | 42% | 29.76 | 1007.6 | |||||
| 20 | 11:51 | W 9 | 10.00 | Mostly Cloudy | FEW200 BKN250 | 64.9 | 44.1 | 47% | 29.77 | 1008.2 | |||||||
| 20 | 10:51 | W 10 | 10.00 | Mostly Cloudy | SCT200 BKN250 | 62.1 | 44.1 | 52% | 29.77 | 1008.3 | |||||||
| 20 | 09:51 | W 14 G 22 | 10.00 | Mostly Cloudy | BKN200 BKN250 | 59 | 43 | 56% | 29.76 | 1008.0 | |||||||
| 20 | 08:51 | SW 13 | 10.00 | Overcast | FEW160 OVC250 | 54 | 42.1 | 64% | 29.76 | 1008.0 | |||||||
| 20 | 07:51 | SW 12 G 21 | 10.00 | Overcast | SCT160 OVC250 | 52 | 41 | 66% | 29.77 | 1008.2 | |||||||
| 20 | 06:51 | SW 13 | 10.00 | Overcast | FEW140 BKN170 OVC250 | 52 | 41 | 52 | 39.9 | 66% | 29.78 | 1008.4 | |||||
| 20 | 04:51 | SW 10 | 10.00 | Overcast | OVC180 | 48.9 | 39.9 | 71% | 45 | 29.8 | 1009.4 | ||||||
| 20 | 03:51 | SW 8 | 10.00 | Partly Cloudy | FEW150 SCT250 | 45 | 37.9 | 77% | 41 | 29.83 | 1010.1 | ||||||
| 20 | 02:51 | SW 6 | 10.00 | A Few Clouds | FEW150 FEW250 | 45 | 36 | 71% | 42 | 29.86 | 1011.1 | ||||||
| 20 | 01:51 | SW 5 | 10.00 | Mostly Cloudy | FEW150 BKN250 | 39.9 | 33.1 | 77% | 37 | 29.89 | 1012.4 | ||||||
| 20 | 00:51 | Calm | 10.00 | NULL | NULL | 41 | 33.1 | 46.9 | 39.9 | 73% | 29.93 | 1013.5 | |||||
| 19 | 23:51 | Calm | 10.00 | Mostly Cloudy | BKN250 | 41 | 33.1 | 73% | 29.95 | 1014.3 | |||||||
| 19 | 22:51 | Calm | 10.00 | Mostly Cloudy | BKN250 | 41 | 32 | 70% | 29.97 | 1015.2 | |||||||
| 19 | 21:51 | E 5 | 10.00 | Partly Cloudy | SCT250 | 42.1 | 30.9 | 65% | 40 | 30 | 1016.3 | ||||||
| 19 | 20:51 | E 5 | 10.00 | A Few Clouds | FEW250 | 42.1 | 30.9 | 65% | 40 | 30.02 | 1017.0 | ||||||
| 19 | 19:51 | E 9 | 10.00 | A Few Clouds | FEW250 | 44.1 | 30.9 | 60% | 40 | 30.04 | 1017.5 | ||||||
| 19 | 18:51 | E 7 | 10.00 | A Few Clouds | FEW250 | 46.9 | 30 | 62.1 | 46.9 | 52% | 44 | 30.04 | 1017.5 | ||||
| 19 | 17:51 | E 8 | 10.00 | Mostly Cloudy | BKN250 | 50 | 30.9 | 48% | 47 | 30.06 | 1018.1 | ||||||
| 19 | 16:51 | E 9 | 10.00 | Mostly Cloudy | BKN250 | 53.1 | 33.1 | 47% | 30.06 | 1018.2 | |||||||
| 19 | 15:51 | E 10 | 10.00 | Mostly Cloudy | BKN250 | 55 | 34 | 45% | 30.05 | 1017.8 | |||||||
| 19 | 14:51 | NE 12 | 10.00 | Mostly Cloudy | BKN250 | 55.9 | 35.1 | 46% | 30.05 | 1018.1 | |||||||
| 19 | 13:51 | E 5 | 10.00 | A Few Clouds | FEW250 | 62.1 | 37 | 40% | 30.07 | 1018.3 | |||||||
| 19 | 12:51 | E 3 | 10.00 | A Few Clouds | FEW250 | 59 | 36 | 59 | 36 | 42% | 30.08 | 1018.8 | |||||
| 19 | 11:51 | SE 3 | 10.00 | A Few Clouds | FEW250 | 55.9 | 35.1 | 46% | 30.08 | 1018.8 | |||||||
| 19 | 10:51 | E 3 | 10.00 | A Few Clouds | FEW180 FEW250 | 51.1 | 33.1 | 50% | 30.09 | 1019.2 | |||||||
| 19 | 09:51 | S 5 | 10.00 | Partly Cloudy | FEW070 SCT180 SCT250 | 46.9 | 33.1 | 59% | 45 | 30.08 | 1019.1 | ||||||
| 19 | 08:51 | S 6 | 10.00 | Partly Cloudy | FEW060 FEW120 SCT250 | 42.1 | 32 | 68% | 39 | 30.07 | 1018.7 | ||||||
| 19 | 07:51 | S 3 | 9.00 | Partly Cloudy | FEW060 FEW110 SCT250 | 37 | 30 | 76% | 30.05 | 1018.3 | |||||||
| 19 | 05:51 | SW 7 | 9.00 | Partly Cloudy | FEW070 SCT120 | 37 | 30 | 76% | 32 | 30.03 | 1017.5 | ||||||
| 19 | 04:51 | SE 5 | 9.00 | Mostly Cloudy | BKN120 | 36 | 28.9 | 76% | 33 | 30.02 | 1017.1 | ||||||
| 19 | 03:51 | Calm | 10.00 | Overcast | SCT120 OVC250 | 34 | 28.9 | 82% | 30.04 | 1017.7 | |||||||
| 19 | 02:51 | Calm | 10.00 | Overcast | SCT110 OVC250 | 36 | 28.9 | 76% | 30.04 | 1017.7 | |||||||
| 19 | 01:51 | Calm | 10.00 | Overcast | SCT120 BKN180 OVC250 | 37 | 28.9 | 73% | 30.04 | 1017.8 | |||||||
| 19 | 00:51 | Calm | 10.00 | Overcast | FEW120 BKN180 OVC250 | 37 | 28.9 | 43 | 36 | 73% | 30.05 | 1018.0 | |||||
| 18 | 23:51 | Calm | 10.00 | Overcast | BKN180 OVC250 | 37 | 28.9 | 73% | 30.04 | 1017.9 | |||||||
| 18 | 22:51 | Calm | 10.00 | Overcast | BKN180 OVC250 | 37.9 | 28.9 | 70% | 30.04 | 1017.9 | |||||||
| 18 | 21:51 | NW 3 | 10.00 | Overcast | BKN180 OVC250 | 37.9 | 28 | 68% | 30.05 | 1018.1 | |||||||
| 18 | 20:51 | NW 6 | 10.00 | Overcast | BKN190 OVC250 | 39 | 28.9 | 67% | 35 | 30.04 | 1018.1 | ||||||
| 18 | 19:51 | W 6 | 10.00 | Overcast | OVC240 | 41 | 30 | 65% | 38 | 30.03 | 1017.5 | ||||||
| 18 | 18:51 | W 6 | 10.00 | Mostly Cloudy | BKN250 | 43 | 30 | 46 | 37 | 60% | 40 | 30.01 | 1016.8 | ||||
| 18 | 17:51 | W 7 | 10.00 | A Few Clouds | FEW250 | 46 | 30 | 54% | 43 | 29.97 | 1015.6 | ||||||
| 18 | 16:51 | SW 10 | 10.00 | Fair | CLR | 46 | 30 | 54% | 42 | 29.97 | 1015.4 | ||||||
| 18 | 15:51 | W 7 | 10.00 | Partly Cloudy | SCT039 | 44.1 | 28.9 | 55% | 41 | 29.97 | 1015.4 | ||||||
| 18 | 14:51 | SW 12 | 10.00 | Mostly Cloudy | BKN041 | 42.1 | 27 | 55% | 36 | 29.96 | 1015.2 | ||||||
| 18 | 13:51 | SW 13 | 10.00 | Overcast | FEW031 OVC043 | 39.9 | 26.1 | 58% | 33 | 29.98 | 1015.9 | ||||||
| 18 | 12:51 | SW 15 G 23 | 10.00 | A Few Clouds | FEW031 FEW055 | 37 | 24.1 | 37 | 24.1 | 59% | 29 | 29.99 | 1016.4 | ||||
| 18 | 11:51 | S 15 | 10.00 | Partly Cloudy | FEW025 SCT055 | 34 | 24.1 | 67% | 25 | 30 | 1016.7 | ||||||
| 18 | 10:51 | S 14 G 24 | 10.00 | Overcast | FEW032 OVC060 | 30 | 21 | 69% | 20 | 30.02 | 1017.3 | ||||||
| 18 | 09:51 | S 12 G 22 | 10.00 | Overcast | BKN033 OVC060 | 27 | 19.9 | 75% | 17 | 30.02 | 1017.4 | ||||||
| 18 | 08:51 | S 15 G 23 | 4.00 | Light Snow | BKN043 OVC055 | 26.1 | 19 | 75% | 15 | 30.02 | 1017.6 | ||||||
| 18 | 07:51 | S 16 G 22 | 10.00 | Light Snow | FEW015 BKN041 OVC060 | 25 | 19 | 78% | 13 | 30.02 | 1017.6 | ||||||
| 18 | 06:51 | S 13 G 26 | 10.00 | Overcast | OVC014 | 24.1 | 19 | 24.1 | 23 | 81% | 13 | 30.02 | 1017.6 | 0.01 | |||
| 18 | 05:51 | S 10 | 7.00 | Light Snow | BKN015 OVC039 | 24.1 | 19 | 81% | 15 | 30.03 | 1017.9 | ||||||
| 18 | 04:51 | S 14 G 21 | 7.00 | Light Snow | BKN015 BKN033 OVC042 | 24.1 | 19 | 81% | 13 | 30.04 | 1018.2 | ||||||
| 18 | 03:51 | S 12 | 4.00 | Light Snow Fog/Mist | FEW015 BKN037 OVC060 | 23 | 19 | 85% | 13 | 30.06 | 1018.7 | 0.01 | |||||
| 18 | 02:51 | S 9 | 6.00 | Light Snow Fog/Mist | SCT013 BKN049 OVC070 | 23 | 19 | 85% | 14 | 30.08 | 1019.6 | 0.01 | |||||
| 18 | 01:51 | S 6 | 2.00 | Light Snow Fog/Mist | FEW016 OVC028 | 23 | 19 | 85% | 17 | 30.11 | 1020.4 | ||||||
| 18 | 00:51 | S 10 | 3.00 | Light Snow | OVC030 | 23 | 17.1 | 24.1 | 21.9 | 78% | 13 | 30.13 | 1021.1 | ||||
| 17 | 23:51 | S 8 | 10.00 | Overcast | BKN060 OVC075 | 24.1 | 12 | 60% | 16 | 30.14 | 1021.7 | ||||||
| 17 | 22:51 | S 10 | 10.00 | Overcast | BKN070 OVC160 | 23 | 10 | 57% | 13 | 30.16 | 1022.4 | ||||||
| 17 | 21:51 | S 6 | 10.00 | Overcast | OVC095 | 23 | 9 | 55% | 17 | 30.16 | 1022.4 | ||||||
| 17 | 20:51 | SW 7 | 10.00 | Overcast | SCT095 BKN130 BKN200 OVC250 | 21.9 | 7 | 52% | 14 | 30.16 | 1022.4 | ||||||
| 17 | 19:51 | SW 12 | 10.00 | Overcast | BKN110 OVC250 | 21.9 | 6.1 | 50% | 11 | 30.17 | 1022.9 | ||||||
| 17 | 18:51 | SW 10 | 10.00 | Overcast | BKN120 OVC250 | 21.9 | 3.9 | 24.1 | 21 | 46% | 12 | 30.17 | 1022.8 | ||||
| 17 | 17:51 | S 10 | 10.00 | Overcast | OVC250 | 21.9 | 3.9 | 46% | 12 | 30.17 | 1022.8 | ||||||
| 17 | 16:51 | SW 6 G 17 | 10.00 | Overcast | OVC250 | 21.9 | 3 | 44% | 15 | 30.15 | 1022.1 | ||||||
| 17 | 15:51 | SW 9 | 10.00 | Overcast | OVC250 | 21.9 | -0 | 38% | 13 | 30.16 | 1022.4 | ||||||
| 17 | 14:51 | W 14 G 22 | 10.00 | Mostly Cloudy | FEW040 BKN250 | 21.9 | -0 | 38% | 10 | 30.18 | 1023.0 | ||||||
| 17 | 13:51 | W 12 | 10.00 | Mostly Cloudy | FEW050 BKN250 | 21.9 | 1 | 40% | 11 | 30.18 | 1023.2 | ||||||
| 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) | |||||||||||||||