| D a t e | 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. | |||||||||||||||||
| 20 | 23:51 | S 6 | 9.00 | Overcast | FEW085 BKN110 OVC150 | 70 | 67 | 90% | NA | NA | 29.78 | 1007.9 | |||||
| 20 | 22:51 | Calm | 10.00 | Overcast | FEW085 OVC130 | 70 | 67 | 90% | NA | NA | 29.78 | 1007.9 | |||||
| 20 | 21:51 | E 7 | 10.00 | Overcast | FEW055 SCT085 OVC140 | 70 | 67 | 90% | NA | NA | 29.79 | 1008.3 | 0.04 | 0.59 | |||
| 20 | 20:51 | S 7 | 10.00 | Thunderstorm | SCT033CB SCT075 BKN085 | 70 | 65 | 84% | NA | NA | 29.79 | 1008.4 | 0.53 | ||||
| 20 | 19:51 | W 6 | 5.00 | Thunderstorm Light Rain Fog/Mist | BKN018 BKN047CB OVC110 | 71 | 67 | 87% | NA | NA | 29.78 | 1008.2 | 0.02 | ||||
| 20 | 18:51 | E 15 | 9.00 | Overcast | SCT038 BKN047 OVC140 | 77 | 70 | 79 | 73 | 79% | NA | 79 | 29.77 | 1007.7 | 0.07 | ||
| 20 | 17:51 | E 14 | 9.00 | Mostly Cloudy | BKN018 BKN026 BKN042 | 77 | 71 | 82% | NA | 79 | 29.77 | 1007.6 | |||||
| 20 | 16:51 | E 16 | 8.00 | Overcast | BKN016 BKN022 OVC034 | 76 | 71 | 85% | NA | 77 | 29.78 | 1008.0 | 0.03 | ||||
| 20 | 15:51 | E 16 | 10.00 | Overcast | SCT017 BKN022 OVC027 | 77 | 70 | 79% | NA | 79 | 29.80 | 1008.5 | 0.04 | ||||
| 20 | 14:51 | SE 14 G 23 | 10.00 | Mostly Cloudy | FEW018 BKN070 BKN110 | 76 | 69 | 79% | NA | 77 | 29.82 | 1009.2 | |||||
| 20 | 13:51 | E 14 | 8.00 | Overcast | SCT016 BKN070 OVC100 | 75 | 70 | 84% | NA | NA | 29.83 | 1009.8 | 0.04 | ||||
| 20 | 12:51 | E 12 | 4.00 | Rain Fog/Mist | SCT026 BKN055 OVC090 | 73 | 69 | 78 | 73 | 87% | NA | NA | 29.85 | 1010.3 | 0.16 | 0.16 | |
| 20 | 11:51 | E 15 | 10.00 | Light Rain | SCT070 BKN100 BKN180 OVC220 | 76 | 66 | 72% | NA | 78 | 29.86 | 1010.7 | |||||
| 20 | 10:51 | E 12 | 10.00 | Overcast | FEW070 BKN180 OVC220 | 77 | 65 | 66% | NA | 79 | 29.86 | 1010.6 | |||||
| 20 | 09:51 | E 13 | 10.00 | Overcast | FEW070 BKN220 OVC250 | 76 | 64 | 67% | NA | 78 | 29.88 | 1011.4 | |||||
| 20 | 08:51 | SE 13 | 10.00 | Overcast | FEW090 BKN200 OVC250 | 75 | 64 | 69% | NA | NA | 29.92 | 1012.6 | |||||
| 20 | 07:51 | SE 10 | 10.00 | Overcast | BKN200 OVC250 | 73 | 64 | 74% | NA | NA | 29.92 | 1012.9 | |||||
| 20 | 06:51 | E 10 | 10.00 | Mostly Cloudy | BKN200 BKN250 | 73 | 63 | 75 | 71 | 71% | NA | NA | 29.91 | 1012.4 | |||
| 20 | 05:51 | E 6 | 10.00 | Mostly Cloudy | BKN250 | 71 | 63 | 76% | NA | NA | 29.91 | 1012.5 | |||||
| 20 | 04:51 | E 7 | 10.00 | Overcast | FEW050 OVC250 | 72 | 63 | 73% | NA | NA | 29.92 | 1012.6 | |||||
| 20 | 03:51 | SE 8 | 10.00 | Overcast | OVC250 | 72 | 63 | 73% | NA | NA | 29.93 | 1013.0 | |||||
| 20 | 02:51 | SE 7 | 10.00 | Mostly Cloudy | FEW050 BKN250 | 73 | 64 | 74% | NA | NA | 29.94 | 1013.2 | |||||
| 20 | 01:51 | SE 8 | 10.00 | Mostly Cloudy | FEW065 BKN250 | 74 | 64 | 71% | NA | NA | 29.94 | 1013.3 | |||||
| 20 | 00:51 | SE 9 | 10.00 | Overcast | FEW050 OVC250 | 75 | 66 | 78 | 75 | 74% | NA | NA | 29.94 | 1013.4 |
Complete data after midnight (may be delayed 24-48 hours).
CHICAGO O'HARE CURRENT AND HISTORY (3-DAY) ... | NWS Chicago Office OBSERVED WEATHER REPORTS
FORECAST:
Chicago Weather Forecast
Chicago Weather Radar
| Twitter group from National Weather Service Chicago, Local Chicago Media, and The Weather Channel. |
Extremely dangerous & potentially life threatening Lake Michigan swim conditions today through Wednesday morning. pic.twitter.com/wANW0TBGhb— NWS Chicago (@NWSChicago) August 20, 2018
Unsettled weather thru Tuesday aftn, with a return of sunshine and dry weather for Wednesday and Thursday. Highs in the 70s thru the week. pic.twitter.com/fzQwAhJvxB— NWS Chicago (@NWSChicago) August 20, 2018
Scattered showers and t-storms will be possible through the remainder of the aftn. Stronger storms capable of gusty winds & downpours. pic.twitter.com/8mJReuY6eG— NWS Chicago (@NWSChicago) August 20, 2018
Showers and scattered t-storms continue to move across nrn IL and nw IN. More t-storms are expected this afternoon, some could be severe. pic.twitter.com/Mjr3vmPed7— NWS Chicago (@NWSChicago) August 20, 2018
Showers and thunderstorms will move into north central and northeast Illinois during the morning hours. pic.twitter.com/EsJNl9t76O— NWS Chicago (@NWSChicago) August 20, 2018
Following early day showers & T-storms, look for more isolated to scattered T-storm later this afternoon in an arc from NW IL into eastern IL. The potential exists for a couple of these storms to produce tornadoes late this afternoon until around sunset. Stay weather aware today! pic.twitter.com/GFfWFDROSP— NWS Chicago (@NWSChicago) August 20, 2018
A new jet stream pattern will begin to take shape this weekend and it will bring changes from coast-to-coast: https://t.co/5lxPHkgzde pic.twitter.com/yOfwSAm7xn— The Weather Channel (@weatherchannel) August 20, 2018
Scattered #severe t-storms and #flooding rainfall will spread from the Mississippi Valley to the East through Tuesday. https://t.co/iy8MB9XrA2 pic.twitter.com/lBFwak6Aoj— The Weather Channel (@weatherchannel) August 20, 2018
CLIMATE DATA FROM THE NATIONAL WEATHER SERVICE CHICAGO OFFICE ...
+ + + +
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
711 AM CDT TUE AUG 21 2018
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 20 2018...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2018
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 79 207 PM 98 1947 82 -3 90
MINIMUM 69 744 PM 47 1950 63 6 63
AVERAGE 74 72 2 77
PRECIPITATION (IN)
YESTERDAY 0.82 1.47 1951 0.16 0.66 T
MONTH TO DATE 4.57 3.30 1.27 2.02
SINCE JUN 1 13.34 10.45 2.89 13.14
SINCE JAN 1 32.19 23.53 8.66 31.25
SNOWFALL (IN)
YESTERDAY 0.0 0.0 MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE JUN 1 0.0 0.0 0.0 T
SINCE JUL 1 0.0 0.0 0.0 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 3
SINCE JUN 1 10 52 -42 6
SINCE JUL 1 0 4 -4 3
COOLING
YESTERDAY 9 7 2 12
MONTH TO DATE 257 166 91 158
SINCE JUN 1 829 614 215 694
SINCE JAN 1 978 668 310 727
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (110)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION SE (120)
AVERAGE WIND SPEED 10.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 900 PM
LOWEST 64 1000 AM
AVERAGE 77
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 99 1955
MINIMUM TEMPERATURE (F) 63 46 1950
SUNRISE AND SUNSET
AUGUST 21 2018........SUNRISE 606 AM CDT SUNSET 743 PM CDT
AUGUST 22 2018........SUNRISE 607 AM CDT SUNSET 741 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
+ + + +
HOMETOWN WEATHER: Arlington Heights Weather Forecast -- Arlingtoncardinal.com/weather
LIVE RADAR | STORM TRACKS | CLOUDS INFRARED SAT | CLOUDS VISIBLE SAT (during daylight)
WunderMap® US Temperature/Wind Data || WunderMap®: O'Hare Temps | NE Illinois Temps
Full Screen Motion Weather Radar (Wunderground.com) Midwest Cloud Cover and Arlington Heights Weather Forecast | SWPC Aurora Forecast
SUNLIGHT DATA FOR SECURITY, TRAFFIC SAFETY, AND SPORTS
SunCalc.net data with azimuth & trajectory, times for dawn, sunrise, solar noon, sunset, dusk ...
