| 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. | |||||||||||||||||
| 30 | 23:51 | W 10 | 10.00 | Fair | CLR | -18 | -25 | -15 | -18 | 69% | -38 | NA | 30.35 | 1030.2 | |||
| 30 | 22:51 | W 9 | 10.00 | Fair | CLR | -18 | -25 | 69% | -37 | NA | 30.34 | 1030.0 | |||||
| 30 | 21:51 | W 8 | 10.00 | Fair | CLR | -17 | -24 | 69% | -35 | NA | 30.34 | 1030.0 | |||||
| 30 | 20:51 | W 15 G 23 | 10.00 | Fair | CLR | -16 | -24 | 66% | -40 | NA | 30.33 | 1029.8 | |||||
| 30 | 19:51 | W 10 | 10.00 | A Few Clouds | FEW030 | -16 | -23 | 70% | -36 | NA | 30.33 | 1029.5 | |||||
| 30 | 18:51 | W 13 G 22 | 10.00 | A Few Clouds | FEW030 | -15 | -23 | 66% | -37 | NA | 30.31 | 1029.0 | |||||
| 30 | 17:51 | W 10 G 21 | 10.00 | A Few Clouds | FEW030 | -15 | -23 | -14 | -18 | 66% | -35 | NA | 30.30 | 1028.5 | |||
| 30 | 16:51 | SW 10 G 23 | 10.00 | A Few Clouds | FEW030 | -15 | -23 | 66% | -35 | NA | 30.28 | 1027.9 | |||||
| 30 | 15:51 | W 16 G 24 | 10.00 | A Few Clouds | FEW030 | -14 | -23 | 63% | -38 | NA | 30.27 | 1027.5 | |||||
| 30 | 14:51 | W 18 G 28 | 10.00 | A Few Clouds | FEW030 | -15 | -23 | 66% | -41 | NA | 30.26 | 1027.2 | |||||
| 30 | 13:51 | SW 15 G 25 | 10.00 | A Few Clouds | FEW030 | -16 | -24 | 66% | -40 | NA | 30.25 | 1027.0 | |||||
| 30 | 12:51 | SW 20 G 28 | 10.00 | A Few Clouds | FEW030 | -17 | -25 | 66% | -44 | NA | 30.25 | 1026.9 | |||||
| 30 | 11:51 | W 17 G 26 | 10.00 | A Few Clouds | FEW030 | -18 | -27 | -18 | -23 | 62% | -44 | NA | 30.25 | 1026.8 | |||
| 30 | 10:51 | W 17 G 29 | 10.00 | Fair | CLR | -19 | -29 | 59% | -45 | NA | 30.25 | 1026.7 | |||||
| 30 | 09:51 | W 21 G 29 | 10.00 | A Few Clouds and Breezy | FEW030 | -21 | -30 | 62% | -50 | NA | 30.23 | 1025.9 | |||||
| 30 | 08:51 | W 17 G 29 | 10.00 | A Few Clouds | FEW030 FEW250 | -22 | -32 | 58% | -49 | NA | 30.21 | 1025.5 | |||||
| 30 | 07:51 | W 17 G 32 | 10.00 | A Few Clouds | FEW030 FEW250 | -23 | -32 | 61% | -50 | NA | 30.19 | 1024.7 | |||||
| 30 | 06:51 | W 20 G 30 | 10.00 | A Few Clouds | FEW030 FEW250 | -23 | -32 | 61% | -52 | NA | 30.16 | 1023.7 | |||||
| 30 | 05:51 | W 17 G 28 | 10.00 | A Few Clouds | FEW030 FEW250 | -22 | -31 | -10 | -22 | 62% | -49 | NA | 30.13 | 1022.6 | |||
| 30 | 04:51 | W 15 G 26 | 10.00 | Fair | CLR | -20 | -30 | 59% | -45 | NA | 30.10 | 1021.4 | |||||
| 30 | 03:51 | W 16 G 31 | 10.00 | Fair | CLR | -19 | -29 | 59% | -44 | NA | 30.07 | 1020.5 | |||||
| 30 | 02:51 | W 18 G 31 | 9.00 | A Few Clouds | FEW021 | -18 | -27 | 62% | -44 | NA | 30.05 | 1019.5 | |||||
| 30 | 01:51 | W 16 G 25 | 10.00 | A Few Clouds | FEW030 | -16 | -27 | 56% | -41 | NA | 30.02 | 1018.7 | |||||
| 30 | 00:51 | W 17 G 28 | 10.00 | Fair | CLR | -13 | -27 | 48% | -37 | NA | 30.01 | 1018.0 |
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. |
Here is a look at the lowest observed temp & wind chill values across the area from this morning. Temps fell into the -20s for much of the area &, when combined with winds of 10 to 20 mph, resulted in wind chills generally in the range of -45 to -55F. pic.twitter.com/QxQsHHXlS1
— NWS Chicago (@NWSChicago) January 30, 2019
Midnight temperatures & (wind chills):
— NWS Chicago (@NWSChicago) January 30, 2019
Rockford: -16° (-43°)
DeKalb: -13° (-42°)
Peru: -11° (-37°)
Chicago O'Hare: -10° (-35°)
Chicago Downtown: -7° (-31°)
Temperatures & wind chills will continue to head down, down, down.
For observations see: https://t.co/BgeKFerhhT
DAILY record lows for today, Jan. 30, have already been broken in the area with temperatures still falling! Those daily record lows were:
— NWS Chicago (@NWSChicago) January 30, 2019
Chicago: -15° (1966)
Rockford: -19° (1966)
Current 4 a.m. Temperatures:
Chicago: -19°
Rockford: -22°
Given it's -22° in Chicago early this a.m., we wondered how this cold stacked up with other North American cities. There are many cities in the heart of the continent today where it is necessary to dress as warm as possible if outside. Chicago is one of those! #ILwx pic.twitter.com/3kfs3LpfQ7
— NWS Chicago (@NWSChicago) January 30, 2019
The heart of the Arctic cold has arrived.
— NWS Chicago (@NWSChicago) January 30, 2019
The combined effects of the cold & winds are at their peak today with wind chills of -45° to -60° continuing. The afternoon highs today...yes the highs...will only be -11° to -17°. Please be smart & safe today. #ILwx #INwx pic.twitter.com/3WaRW6SyKR
It’s COLD, period.
— NWS Chicago (@NWSChicago) January 30, 2019
Temps are in the -20s area wide, and here are the wind chills which combine effects of cold & wind. These are extreme values for northern IL & northwest IN and will remain so today. Dress warm, limit exposure. #ILwx #INwx
List: https://t.co/u61rlmiMio pic.twitter.com/E73t0dKMsN
Yet another round of accumulating snow is on the way Thursday PM, with probable impacts to the Thursday evening commute. Leave yourself extra travel time. Be prepared to encounter snow covered roads & slowed, possibly hazardous travel. #ilwx #inwx pic.twitter.com/jDJRkBGo4u
— NWS Chicago (@NWSChicago) January 30, 2019
We have a -50° wind chill in the forecast area. Rockford has that with a -21° temperature and 20 mph wind gusting to 28 mph.
— NWS Chicago (@NWSChicago) January 30, 2019
That wind chill is about as low as it can get in our area, and it's still going to get lower through 9 a.m.
Be safe and be smart if venturing out! #ILwx
While not as extreme as this morning, dangerous cold continues this afternoon with wind chill values of about 30 to 50 below zero. There may be some patchy blowing/drifting snow in open/rural areas. #ilwx #inwx pic.twitter.com/vhZhhAjf5C
— NWS Chicago (@NWSChicago) January 30, 2019
Last day of the bitter cold, Thurs, will likely start with some all-time record cold. Early AM lows will be in -20s to -30s across the area. Isol'd readings of around -40° psbl west of Fox Valley. Lighter winds but still dangerous cold to be in if not dressed for it. #ilwx #inwx pic.twitter.com/KaQvtk8rRj
— NWS Chicago (@NWSChicago) January 30, 2019
1-minute video brief on the cold. Bottom safety line is to limit time and exposure outside, and if you are outdoors dress warmly. #ILwx #INwx https://t.co/0Pq2b87TRE pic.twitter.com/TIHdlwekv4
— NWS Chicago (@NWSChicago) January 30, 2019
The last day of this bitter cold, Thursday, will start with impressive cold. Lows early Thu morning will be in the -20s to -30s across the area. Winds will gradually be easing, so wind chills will not be as low as this morning, however still to dangerous levels. #ILwx #INwx pic.twitter.com/91NPAxEpyf
— NWS Chicago (@NWSChicago) January 30, 2019
Gusty west winds are not only adding to the extreme cold but resulting in blowing and drifting snow. Allow extra travel time this a.m. especially if going through open areas. Also of course, bundle up in layers! #ILwx #INwx pic.twitter.com/XzqfwG72EC
— NWS Chicago (@NWSChicago) January 30, 2019
It's the coldest morning in #Chicago in 34 years, when their all-time record low was set. They'll make a run at that all-time record Thursday AM. https://t.co/n3PhNOEAeI pic.twitter.com/MC2jcUUwNd
— The Weather Channel (@weatherchannel) January 30, 2019
Here's a look at Thursday morning's forecast low temperatures, but it will feel 10 to 20 degrees colder than this when factoring in the wind chill. More on this #PolarVortex triggered arctic outbreak: https://t.co/n3PhNOEAeI pic.twitter.com/tWVM3Qwpzp
— The Weather Channel (@weatherchannel) January 30, 2019
A new storm system will arrive in California this weekend with heavy rain and mountain snow. It may also bring wintry weather to parts of the upper Midwest early next week: https://t.co/PbTWsI5LK7 pic.twitter.com/SEsKrmASwH
— The Weather Channel (@weatherchannel) January 30, 2019
The Midwest temperature changes from now into this weekend are no match for these seven major temperature swings in history: https://t.co/BHXclpLOR5 pic.twitter.com/q9lTXPJpNa
— The Weather Channel (@weatherchannel) January 30, 2019
#Chicago is having its snowiest stretch of days in 40 years: https://t.co/cRDvMbzcIG pic.twitter.com/MQWV9MztMU
— The Weather Channel (@weatherchannel) January 30, 2019
How long will the extreme cold last in the Midwest and Northeast? https://t.co/oga1JhDBVy pic.twitter.com/Cj0k4kc8ur
— The Weather Channel (@weatherchannel) January 30, 2019
CLIMATE DATA FROM THE NATIONAL WEATHER SERVICE CHICAGO OFFICE ...
+ + + +
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
127 AM CST THU JAN 31 2019
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR JANUARY 30 2019...
CORRECTION TO YEAR OF PREVIOUS RECORD MINIMUM
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2019
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM -10 1207 AM 55 1988 32 -42 31
MINIMUM -23R 841 AM -15 1966 17 -40 15
1951
AVERAGE -16 24 -40 23
PRECIPITATION (IN)
YESTERDAY T 0.97 1939 0.05 -0.05 0.00
MONTH TO DATE 1.91 1.68 0.23 1.54
SINCE DEC 1 5.23 3.93 1.30 2.13
SINCE JAN 1 1.91 1.68 0.23 1.54
SNOWFALL (IN)
YESTERDAY T 14.9 1939 0.4 -0.4 0.0
MONTH TO DATE 17.4 10.4 7.0 4.6
SINCE DEC 1 18.8 18.6 0.2 9.9
SINCE JUL 1 31.5 20.0 11.5 10.0
SNOW DEPTH 8
DEGREE DAYS
HEATING
YESTERDAY 81 41 40 42
MONTH TO DATE 1283 1238 45 1217
SINCE DEC 1 2264 2393 -129 2382
SINCE JUL 1 3627 3649 -22 3425
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 0 0 0 0
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 15.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT SNOW
RELATIVE HUMIDITY (PERCENT)
HIGHEST 70 1100 PM
LOWEST 55 200 AM
AVERAGE 63
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 32 65 1989
MINIMUM TEMPERATURE (F) 17 -12 1985
1899
SUNRISE AND SUNSET
JANUARY 31 2019.......SUNRISE 706 AM CST SUNSET 505 PM CST
FEBRUARY 1 2019......SUNRISE 705 AM CST SUNSET 506 PM CST
- 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 ...
