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Polar vortex to unleash 3 blasts of Arctic air into mid-December. See the forecast. Chevron right
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Westchester, IL

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Today WinterCast Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities
Thursday, December 4

Day

12/4
13°Hi
RealFeel® 12°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
RealFeel Shade™ 8°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
Bitterly cold with brilliant sunshine

Max UV Index2.0 (Low)

AccuLumen Brightness Index™9 (Very Bright)

WindWNW 7 mph

Wind Gusts14 mph

Probability of Precipitation0%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover9%

Morning

Afternoon

Night

12/4
5°Lo
RealFeel® -6°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
Mainly clear and bitterly cold

WindSSW 8 mph

Wind Gusts14 mph

Probability of Precipitation1%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover17%

Evening

Overnight

Sun & Moon

9 hrs 18 mins
Rise 7:03 AM
Set 4:21 PM
Full Moon
Rise 3:47 PM
Set 8:13 AM

Temperature History

12/4
High
Low
Forecast
13°
5°
Average
40°
27°
Last Year
39°
16°
Record
66°
1998
N/A

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  • Joliet, IL
  • Naperville, IL
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