Arlington Heights Weather Forecast: High 47, Temps Dropping After 3 PM Today; Snow Accumulating to 3.5 Inches by Christmas Eve, Wednesday 11 PM

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UPDATE: A nice channel of clear skies spans from northeast Wisconsin to northern Illinois to eastern Iowa, northwest Missouri, and eastern Kansas. Although the National Weather Service is forecasting Mostly Cloudy skies, the break has brought sunnier skies than initially forecast for Tuesday.

The radar is clear Tuesday afternoon. Chicagoland weather radar showed very light rain or drizzle moving north-northeast in Chicagoland with the most significant precipitation in western Lake County at 8:00 a.m.

Rain and drizzle was forecast to end by 9:00 a.m. and start up after midnight as rain or snow, which will continue on Wednesday. Snow accumulation is currently forecasted to be 3.5 inches in Arlington Heights by 11:00 p.m. Wednesday.

The significant snowfall is expected begin about 6:00 a.m. Wednesday, taper off about 5:30 p.m. and stop about midnight.

After a high of 47°F at 3:00 p.m., temperatures are expected to drop — reaching 34°F by midnight Tuesday/Wednesday. We experienced a temperature rise overnight Monday/Tuesday.

TODAY Sunrise: 7:17 AM Sunset: 4:24 PM

O’Hare Airport & Nearby Airport Weather Observations & Conditions • TUE DEC 23, 2014 11:51 PM CDT

Location Time
(cdt)
Sky/Weather Temp.
(ºF)
Dewpt.
(ºF)
Humidity
(%)
Wind
(mph)
Pressure
(in)
Chicago/O’Hare 12:51 Partly Cloudy 46 36 68 SW 18 G 26 29.68
Chicago Midway Airport 12:53 Partly Cloudy 50 39 66 SW 13 G 23 29.69
Chicago Executive Airport 12:52 Fair 47 36 66 SW 16 G 24 29.69
Chicago / West Chicago, Dupage Airport 12:52 Mostly Cloudy and Breezy 47 37 69 SW 21 G 26 29.68
Aurora Municipal Airport 12:52 Mostly Cloudy 47 37 69 S 15 29.70
Gary Chicago International 12:45 Partly Cloudy 52 34 50 SW 12 G 23 29.72
Kenosha Regional Airport 12:53 Mostly Cloudy 45 37 74 SW 14 G 22 29.65
Chicago / Waukegan, Waukegan Regional Airport 12:55 Mostly Cloudy and Breezy 46 36 68 SW 21 G 30 29.65
Lansing Municipal Airport 13:15 Fair 49 39 70 SW 16 29.71
Click on location name for the weather during the past two days at that site.

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O’Hare Airport and Nearby Airport Weather Observations & Conditions • TUE DEC 23, 2014 7:52 AM CDT

Location Time
(cdt)
Sky/Weather Temp.
(ºF)
Dewpt.
(ºF)
Humidity
(%)
Wind
(mph)
Pressure
(in)
Chicago/O’Hare 07:51 Overcast 47 44 90 S 13 29.59
Chicago Midway Airport 07:53 Overcast 49 45 86 S 13 29.61
Chicago Executive Airport 07:52 Overcast 47 44 90 S 9 29.60
Chicago / West Chicago, Dupage Airport 07:52 Light Rain 46 43 89 S 12 G 20 29.58
Aurora Municipal Airport 07:52 Light Rain 46 41 83 SW 13 G 23 29.60
Gary Chicago International 08:45 Mostly Cloudy 48 41 76 S 8 29.65
Kenosha Regional Airport 07:53 Fog/Mist 42 42 100 SE 6 29.57
Chicago / Waukegan, Waukegan Regional Airport 07:55 Fog/Mist 40 40 100 SE 5 29.58
Lansing Municipal Airport 08:35 Overcast 45 44 93 SW 10 29.65
Click on location name for the weather during the past two days at that site.

Detailed Forecast

  • TodayA 20 percent chance of rain or drizzle before 9am. Mostly cloudy, with a high near 48. South southwest wind 10 to 15 mph.
  • TonightA chance of rain and snow, mainly after 2am. Cloudy, with a low around 35. South southwest wind 5 to 10 mph becoming north after midnight. Chance of precipitation is 40%.
  • WednesdaySnow, possibly mixed with rain. The snow could be heavy at times. Temperature falling to around 33 by noon. North wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
  • Wednesday NightSnow before midnight. Low around 30. West wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
  • Christmas DayPartly sunny, with a high near 38. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
  • Thursday NightMostly cloudy, with a low around 32.
  • FridayPartly sunny, with a high near 43.
  • Friday NightA slight chance of rain and snow. Mostly cloudy, with a low around 32.
  • SaturdayPartly sunny, with a high near 33.
  • Saturday NightPartly cloudy, with a low around 22.
  • SundayMostly sunny, with a high near 30.
  • Sunday NightPartly cloudy, with a low around 24.
  • MondayPartly sunny, with a high near 33.

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