Arlington Heights Weather Forecast: High Only 18 Today, Wind Chill High 9; Snow Starts About 3 Am Sunday

Chicagoland weather radar is all clear at about 9:24 a.m. Saturday. Snow is forecast to start after 3:00 a.m. Sunday and continue through about 5:00 a.m. Monday. The heaviest snowfall rate is expected between 6:00 p.m. and 11:00 p.m. Sunday. Snow accumulation is expected to be about 1.5 inches with the heaver snowfall lightening by about 11:00 p.m. Sunday night. Some freezing rain is possible

Satellite images show clear skies over northern and central Illinois, southern Wisconsin, and eastern Iowa. Clear skies are forecast all daylight hours Saturday with clouds increasing at about 9:00 p.m. and snow starting at about 3:00 a.m. If cloud cover comes earlier, lows won't be as low as forecast.

Today's high is expected to only hit 18 degrees at about 2:00 p.m. to 3:00 p.m. The overnight low Friday/Saturday was 7 degrees, which coincided with the wind chill low of -7 degrees at 6:52 a.m.

The Saturday/Sunday low is expected to be 11 degrees from 7:00 p.m. to midnight. Temperatures will hold at about 12 degrees from midnight until about 5:00 a.m. Sunday's high is expected to be 27 degrees at about 9:00 p.m. -- otherwise holding around 25-26 degrees during the day Sunday with snow.

The average high for December 7 is 38 degrees and the average low for December 7 is 12 degrees. Next we brace for another cold blast that will last from Monday night until Thursday morning with lows of 7-10 degrees.

TODAY Sunrise: 7:07 AM Sunset: 4:20 PM
Today Sunny, with a high near 18. Wind chill values as low as -2. West northwest wind 5 to 10 mph.

A 30 percent chance of snow showers after 3am. Increasing clouds, with a low around 10. Northwest wind around 5 mph becoming northeast after midnight.

Snow likely, mainly after 3pm. Cloudy, with a high near 27. Northeast wind 5 to 15 mph becoming east southeast in the afternoon. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Sunday Night
Snow before midnight, then a slight chance of snow and freezing drizzle. Low around 21. Southeast wind 10 to 15 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. Little or no ice accumulation expected. New snow accumulation of around an inch possible.

Mostly cloudy, with a high near 21. West wind around 15 mph, with gusts as high as 25 mph.

Monday Night
Partly cloudy, with a low around 10.

Mostly sunny, with a high near 23. Breezy.

Tuesday Night
Partly cloudy, with a low around 10.

Mostly sunny, with a high near 16.

Wednesday Night
Partly cloudy, with a low around 7.

Mostly sunny, with a high near 25.

Thursday Night
Mostly cloudy, with a low around 17.

Partly sunny, with a high near 33.

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