Weather observations for the past three days for
Chicago/Waukegan Regional Airport
Metric (Imperial)
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.
09 12:51 SW 31 G 44 16.09 Fair CLR 20 4.4 20 8.9 36% 75.41 1004.9
09 11:51 SW 30 G 43 16.09 Fair CLR 18.3 3.3 37% 75.41 1005.1
09 10:51 SW 31 G 44 16.09 Fair CLR 16.7 2.2 38% 75.44 1005.4
09 09:51 SW 30 16.09 Fair CLR 13.9 1.7 44% 75.44 1005.6
09 08:51 SW 30 G 46 16.09 Fair CLR 11.7 1.7 51% 75.41 1005.2
09 07:51 SW 28 16.09 Fair CLR 10 1.1 54% 7 75.41 1005.2
09 06:51 SW 24 16.09 Fair CLR 8.9 1.1 11.7 8.9 58% 6 75.41 1005.4
09 05:51 SW 26 16.09 Fair CLR 9.4 1.1 56% 6 75.41 1005.4
09 04:51 SW 20 16.09 Fair CLR 9.4 1.7 59% 7 75.41 1005.1
09 03:51 SW 26 G 41 16.09 Fair CLR 10.6 1.1 52% 75.41 1005.1
09 02:51 SW 26 16.09 Fair CLR 10.6 1.7 54% 75.46 1005.7
09 01:51 SW 28 G 39 16.09 Fair CLR 11.1 1.7 53% 75.49 1006.2
09 00:51 SW 31 G 44 16.09 Fair CLR 11.1 1.7 14.4 11.1 53% 75.51 1006.7
08 23:51 SW 28 G 44 16.09 Fair CLR 11.7 2.2 52% 75.51 1006.8
08 22:51 SW 20 G 39 16.09 Fair CLR 11.7 2.8 55% 75.54 1007.1
08 21:51 SW 28 G 43 16.09 Fair CLR 12.8 2.8 51% 75.51 1007.0
08 20:51 SW 30 G 43 16.09 Fair CLR 13.9 2.8 47% 75.49 1006.7
08 19:51 SW 22 16.09 Fair CLR 14.4 2.2 44% 75.49 1006.7
08 18:51 SW 20 16.09 Fair CLR 14.4 2.8 16.7 12.8 46% 75.46 1006.5
08 17:51 SW 33 G 52 16.09 Fair and Breezy CLR 15.6 3.3 44% 75.44 1006.2
08 16:51 SW 39 G 56 16.09 Fair and Breezy CLR 16.1 3.3 43% 75.46 1006.5
08 15:51 SW 33 G 57 16.09 Fair and Breezy CLR 16.1 2.8 41% 75.51 1007.0
08 14:51 SW 41 G 59 16.09 Fair and Breezy CLR 15.6 2.8 42% 75.51 1007.1
08 13:51 SW 39 G 52 16.09 Fair and Breezy CLR 14.4 2.2 44% 75.54 1007.6
08 12:51 SW 54 G 69 16.09 Fair and Windy CLR 12.8 1.1 12.8 1.1 45% 75.59 1008.2
08 11:51 SW 43 G 65 16.09 Fair and Windy CLR 11.1 0.6 49% 75.69 1009.5
08 10:51 SW 39 G 54 16.09 Fair and Breezy CLR 9.4 0.6 55% 6 75.77 1010.5
08 09:51 SW 33 G 48 16.09 Fair and Breezy CLR 6.1 0.6 68% 2 75.79 1011.2
08 08:51 SW 37 G 46 16.09 Fair and Breezy CLR 3.3 0.6 83% -2 75.82 1011.5
08 07:51 SW 22 16.09 Fair CLR 1.1 -0.6 89% -4 75.79 1011.5
08 06:51 SW 31 G 44 16.09 Partly Cloudy SCT010 1.1 -0.6 1.1 -0.6 89% -5 75.82 1011.7
08 05:51 SW 30 G 41 16.09 Overcast OVC009 1.1 -0.6 89% -5 75.9 1012.5
08 04:51 SW 20 16.09 Overcast OVC010 0 -1.7 88% -5 75.9 1012.5
08 03:51 SW 24 G 37 16.09 Mostly Cloudy BKN012 -0.6 -2.2 89% -6 75.9 1012.6
08 01:51 SW 26 16.09 Mostly Cloudy BKN012 0.6 -1.7 85% -5 75.9 1012.5
08 00:51 SW 20 16.09 Partly Cloudy SCT014 1.1 -1.1 85% -3 75.95 1013.2
07 23:51 SW 30 G 39 16.09 Overcast OVC018 2.2 -1.1 6.1 2.2 79% -3 76 1013.5
07 22:51 W 24 16.09 Overcast OVC019 3.3 -0.6 76% -1 75.97 1013.1
07 21:51 W 20 G 30 16.09 Overcast OVC022 4.4 0.6 77% 1 75.95 1012.8
07 20:51 W 17 16.09 Overcast OVC021 5 1.7 79% 2 75.95 1012.7
07 19:51 W 17 16.09 Overcast OVC020 5.6 2.2 79% 3 75.92 1012.2
07 18:51 W 17 16.09 Overcast OVC019 5.6 2.2 79% 3 75.87 1011.5
07 17:51 W 20 G 41 16.09 Overcast OVC018 6.1 2.8 12.2 6.1 80% 3 75.79 1010.6
07 16:51 W 22 G 37 16.09 Overcast OVC016 6.7 3.3 79% 3 75.72 1009.6
07 15:51 W 22 G 41 16.09 Overcast OVC017 7.2 3.9 80% 4 75.64 1008.5
07 14:51 W 26 G 44 16.09 Overcast OVC014 7.8 4.4 79% 4 75.57 1007.2
07 13:51 W 30 G 44 16.09 Overcast BKN015 OVC019 9.4 5.6 77% 6 75.49 1006.4
07 12:51 W 37 G 59 16.09 Overcast and Breezy BKN015 OVC019 10 6.7 80% 6 75.44 1005.7
07 11:51 W 28 G 43 16.09 Overcast OVC016 12.2 10 16.1 12.2 87% 75.41 1005.0
07 10:51 SW 35 G 56 16.09 Overcast and Breezy OVC015 15.6 13.3 86% 75.31 1003.5
07 09:51 SW 35 G 57 16.09 Overcast and Breezy OVC019 15.6 12.8 84% 75.23 1002.7
07 08:51 SW 35 G 50 16.09 Mostly Cloudy and Breezy BKN019 16.1 13.3 84% 75.29 1003.1
07 07:51 SW 31 G 56 16.09 Mostly Cloudy BKN017 15.6 13.9 90% 75.31 1003.5
07 06:51 SW 26 16.09 Fair CLR 15 13.9 93% 75.29 1003.2
07 05:51 W 22 G 39 16.09 Overcast SCT095 OVC120 15.6 13.9 17.2 15 90% 75.39 1004.7 0.03 0.3
07 04:51 SW 33 G 46 16.09 Light Rain and Breezy BKN090 OVC110 15 13.9 93% 75.34 1004.1
07 03:51 SW 26 12.87 Light Rain OVC085 15.6 14.4 93% 75.39 1004.6 0.28
07 02:51 SW 35 G 48 16.09 Light Rain and Breezy FEW022 BKN028 OVC100 17.2 15 87% 75.44 1005.1
07 01:51 SW 31 G 48 16.09 Mostly Cloudy BKN070 16.7 15 90% 75.59 1007.3
07 00:51 S 20 16.09 Mostly Cloudy SCT100 BKN110 15.6 14.4 93% 75.57 1007.1
06 23:51 S 20 16.09 Fair CLR 15.6 13.9 17.8 12.8 90% 75.57 1007.3
06 22:51 S 17 16.09 Fair CLR 15.6 13.9 90% 75.67 1008.6
06 21:51 SW 20 16.09 Mostly Cloudy BKN110 16.1 14.4 90% 75.74 1009.8
06 20:51 SW 17 16.09 Fair CLR 16.1 13.9 87% 75.79 1010.6
06 19:51 SW 22 16.09 Fair CLR 16.7 13.9 84% 75.74 1010.0
06 18:51 SW 26 16.09 A Few Clouds FEW110 17.2 14.4 84% 75.77 1010.2
06 17:51 S 7 12.87 Fair CLR 13.3 12.8 17.2 10 97% 75.72 1009.6 0.46
06 16:51 S 13 16.09 Fair CLR 16.1 15.6 97% 75.72 1009.7 0.03
06 15:51 SW 22 14.48 Light Rain FEW075 OVC100 16.1 15.6 97% 75.77 1010.5 0.33
06 14:51 SW 19 6.44 Rain Fog/Mist BKN036 BKN070 OVC100 15.6 15 96% 75.87 1011.6 0.05 0.1
06 13:51 SW 24 12.87 Light Rain FEW009 BKN043 OVC075 15 14.4 96% 75.79 1010.7
06 12:51 S 17 6.44 Light Rain Fog/Mist BKN002 OVC007 13.3 13.3 100% 75.84 1011.3 0.05
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)