Weather observations for the past three days for
Chicago, Chicago-O'Hare International Airport
Imperial (Metric)
Date Time (cst) 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.
01 20:51 S 13 G 21 10.00 Overcast BKN040 OVC060 23 12.9 65% 12 30.1 1020.6
01 19:51 S 16 10.00 Overcast FEW030 BKN055 OVC070 24.1 12.9 62% 12 30.11 1021.0
01 18:51 S 13 10.00 Overcast SCT033 BKN047 OVC090 24.1 12.9 62% 13 30.13 1021.6
01 17:51 S 10 10.00 Mostly Cloudy BKN038 BKN120 25 12.9 28 24.1 60% 16 30.13 1021.5
01 16:51 S 10 10.00 A Few Clouds FEW100 FEW250 27 12 53% 18 30.13 1021.4
01 15:51 S 12 G 20 10.00 A Few Clouds FEW130 FEW250 28 10.9 49% 19 30.13 1021.4
01 14:51 SW 9 G 20 10.00 Mostly Cloudy SCT130 BKN250 27 10.9 51% 19 30.15 1022.0
01 13:51 SW 13 10.00 Mostly Cloudy BKN250 27 9 46% 17 30.17 1022.9
01 12:51 SW 10 10.00 Mostly Cloudy BKN250 26.1 8.1 46% 17 30.21 1024.0
01 11:51 SW 12 10.00 Partly Cloudy SCT250 25 7 25 7 46% 15 30.24 1025.0
01 10:51 S 8 10.00 Partly Cloudy SCT250 23 8.1 53% 15 30.25 1025.5
01 09:51 S 6 10.00 A Few Clouds FEW250 19.9 8.1 60% 13 30.28 1026.5
01 08:51 SW 5 10.00 A Few Clouds FEW250 15.1 8.1 74% 9 30.29 1027.0
01 07:51 Calm 9.00 A Few Clouds FEW250 10 6.1 84% 30.29 1027.0
01 06:51 SE 3 10.00 A Few Clouds FEW025 8.1 3.9 83% 30.3 1027.5
01 05:51 SW 3 10.00 A Few Clouds FEW025 9 5 18 9 84% 30.31 1027.6
01 04:51 W 5 10.00 A Few Clouds FEW025 10 6.1 84% 3 30.32 1028.0
01 03:51 NW 3 10.00 A Few Clouds FEW025 12 7 80% 30.33 1028.2
01 02:51 NW 6 10.00 A Few Clouds FEW025 12.9 7 77% 5 30.34 1028.6
01 01:51 NW 6 10.00 A Few Clouds FEW025 14 8.1 77% 6 30.34 1028.7
01 00:51 NW 6 10.00 A Few Clouds FEW025 16 9 74% 8 30.35 1028.8
31 23:51 NW 7 10.00 Mostly Cloudy BKN025 18 10 21 18 71% 10 30.36 1029.2
31 22:51 NW 12 10.00 Mostly Cloudy BKN025 18 10 71% 6 30.38 1030.0
31 21:51 NW 10 10.00 Overcast OVC025 19 10 68% 8 30.39 1030.3
31 20:51 NW 13 10.00 Overcast OVC025 19 10 68% 7 30.39 1030.4
31 19:51 NW 9 10.00 Mostly Cloudy BKN027 19.9 12 71% 10 30.39 1030.2
31 18:51 N 9 10.00 A Few Clouds FEW030 19.9 10 65% 10 30.39 1030.3
31 17:51 N 10 10.00 A Few Clouds FEW030 21 10.9 25 21 65% 11 30.39 1030.3
31 16:51 N 14 10.00 Partly Cloudy SCT030 24.1 12.9 62% 13 30.39 1030.3
31 15:51 N 20 10.00 Mostly Cloudy BKN029 25 14 63% 12 30.39 1030.2
31 14:51 N 14 10.00 Mostly Cloudy BKN029 BKN034 25 14 63% 14 30.38 1030.1
31 13:51 N 14 10.00 Mostly Cloudy FEW021 BKN027 BKN038 25 15.1 66% 14 30.38 1030.0
31 12:51 NW 15 10.00 Light Snow BKN021 OVC034 23 14 68% 11 30.38 1030.2
31 11:51 N 16 10.00 Light Snow BKN021 OVC032 21.9 12.9 21.9 12.9 68% 9 30.39 1030.5
31 10:51 N 15 G 23 10.00 Mostly Cloudy SCT021 BKN028 BKN050 21 12 68% 8 30.39 1030.6
31 09:51 NW 14 G 23 10.00 Light Snow BKN018 OVC034 19 10.9 71% 6 30.39 1030.5
31 08:51 NW 13 9.00 Light Snow OVC016 17.1 10 74% 5 30.39 1030.4
31 07:51 NW 14 9.00 Light Snow BKN014 OVC034 16 10 77% 3 30.38 1029.9
31 05:51 NW 16 G 22 10.00 Overcast BKN018 OVC070 12.9 6.1 12.9 10.9 74% -2 30.37 1029.7
31 04:51 NW 14 10.00 Overcast BKN020 BKN035 OVC075 12.9 6.1 74% -1 30.37 1029.8
31 03:51 NW 12 9.00 Overcast FEW024 BKN036 OVC080 12.9 6.1 74% 0 30.38 1030.0
31 02:51 NW 13 G 22 3.00 Light Snow BKN034 OVC080 12 5 73% -2 30.39 1030.3
31 01:51 NW 13 G 21 10.00 Mostly Cloudy FEW030 BKN080 BKN120 12 1.9 64% -2 30.4 1030.9
31 00:51 NW 13 10.00 Mostly Cloudy FEW030 BKN120 BKN180 10.9 1 64% -3 30.4 1031.0
30 23:51 NW 13 10.00 Mostly Cloudy FEW030 SCT080 BKN180 10.9 1.9 17.1 10.9 67% -3 30.42 1031.4
30 22:51 NW 14 G 25 10.00 Mostly Cloudy FEW060 SCT070 BKN100 12 3 67% -2 30.42 1031.6
30 21:51 N 13 G 23 10.00 Mostly Cloudy SCT075 BKN100 12.9 1 59% -1 30.43 1032.0
30 20:51 N 13 10.00 Mostly Cloudy SCT080 BKN110 12 -0 58% -2 30.44 1032.2
30 19:51 NW 14 G 23 10.00 Mostly Cloudy BKN120 12.9 1 59% -1 30.43 1031.9
30 17:51 N 16 1.50 Light Snow Fog/Mist SCT018 BKN027 OVC040 17.1 10.9 18 16 77% 3 30.41 1031.2 0.09
30 16:51 N 16 10.00 Mostly Cloudy FEW025 BKN033 BKN050 18 6.1 59% 4 30.39 1030.4
30 15:51 NE 16 3.00 Light Snow Fog/Mist OVC015 18 10.9 74% 4 30.37 1029.9 0.02
30 14:51 NE 7 0.25 Heavy Snow Freezing Fog VV010 18 15.1 88% 10 30.36 1029.5 0.03 0.07
30 13:51 N 8 0.25 Heavy Snow Freezing Fog VV009 17.1 14 88% 7 30.36 1029.3 0.03
30 12:51 N 13 0.75 Light Snow VV017 17.1 12 80% 5 30.35 1029.3 0.01
30 11:51 N 10 1.25 Light Snow OVC019 16 10 18 9 77% 5 30.36 1029.7 0.01
30 10:51 N 10 10.00 Mostly Cloudy BKN033 BKN046 15.1 7 70% 3 30.37 1029.8
30 09:51 NW 10 4.00 Light Snow OVC033 14 7 73% 2 30.36 1029.7
30 08:51 N 9 1.75 Light Snow OVC024 12 6.1 77% 1 30.35 1029.4 0.01 0.01
30 07:51 N 10 5.00 Light Snow BKN036 BKN044 OVC055 10.9 3 70% -2 30.35 1029.1
30 06:51 NW 8 10.00 Overcast FEW049 OVC065 10 -0.9 61% -1 30.33 1028.5
30 05:51 NW 6 10.00 Overcast SCT065 OVC100 9 -2 9 6.1 61% 0 30.32 1028.1
30 04:51 NW 6 10.00 Overcast OVC100 9 -2.9 58% 0 30.31 1028.0
30 03:51 NW 7 10.00 Overcast OVC100 8.1 -4 57% -2 30.31 1027.9
30 02:51 W 5 10.00 Mostly Cloudy BKN100 6.1 -4 63% -2 30.32 1028.0
30 01:51 NW 6 10.00 Partly Cloudy SCT095 6.1 -4 63% -3 30.32 1028.3
30 00:51 W 5 10.00 Partly Cloudy SCT095 7 -2.9 63% -1 30.32 1028.2
29 23:51 W 5 10.00 A Few Clouds FEW090 8.1 -4 12.9 6.1 57% 0 30.33 1028.7
29 22:51 NW 3 10.00 Partly Cloudy SCT095 8.1 -4 57% 30.34 1028.9
29 21:51 N 5 10.00 A Few Clouds FEW095 7 -5.1 57% -1 30.33 1028.7
Date Time (cst) 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)