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Cold Weather Advisory COLD WEATHER ADVISORY - Cook County IL  - DuPage County IL  - Will County IL

NWS Southwest Regional Radar WU South West Satellite
Radar/Satellite images courtesy of NOAA/NWS and Weather Underground.
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Updated: @ 18-Jan-2026 7:10pm - next update at 7:15pm  
Summary / Temperature Wind Rain Outlook
Clear Clear
Currently: 63.0, Max: 72.8, Min: 40.8 63°F
Colder 3.3°F than last hour.

Comfortable

Feels like: 63°F

24-hr difference
0.4°FWarmer 0.4°F than yesterday at this time.
  Today Yesterday
High: 72.8°F
3:52pm 		71.6°F
4:04pm
Low: 40.8°F
8:16am 		39°F
8:07am
Calm -
0
Gust:
 0 mph
0 Bft - Calm
Today: 6 mph 12:20pm
Gust Month: 24 mph January 8
Rain Today: 0 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0 in
This Month: 0.15 in
Season Total: 0.15 in
10 days since last rain.
Tonight

Tonight: Mostly Clear
Mostly Clear

Lo 44 °F
Humidity & Barometer Almanac Moon
Humidity: 29 % Increased 6.0% since last hour.
Dew Point: 30.2°F Increased 0.7°F since last hour.
Barometer: 30 inHg  
Baro Trend: Steady
Sunrise: 7:31am
Sunset: 5:48pm
Moonrise: 7:43am
Moonset: 5:47pm
New Moon
New Moon, Moon at 0 days in cycle
0%
Illuminated
UV Index Forecast UV Index Forecast
18-Jan-2026
2.7     Low 
19-Jan-2026
2.8     Low 
 NWS Weather Forecast  - Outlook: M.L. King Jr. Day & Monday Night
M.L. King Jr.
Day
M.L. King Jr. Day: Sunny
Sunny

Hi 74 °F 		NWS forecast: Sunny, with a high near 74. South southeast wind around 0 mph.
 Monday
Night
Monday Night: Clear
Clear

Lo 45 °F 		NWS forecast: Clear. Low around 45, with temperatures rising to around 47 overnight. North wind 0 to 5 mph.
 NWS Short Term Weather Forecast
Tuesday

Tuesday: Sunny
Sunny
Tuesday
Night
Tuesday Night: Clear
Clear
Wednesday

Wednesday: Sunny
Sunny
Wednesday
Night
Wednesday Night: Partly Cloudy
Partly Cloudy
Thursday

Thursday: Mostly Sunny
Mostly Sunny
Thursday
Night
Thursday Night: Partly Cloudy
Partly Cloudy
Friday

Friday: Mostly Sunny
Mostly Sunny
Hi 75 °F Lo 42 °F Hi 74 °F Lo 45 °F Hi 73 °F Lo 48 °F Hi 72 °F
Arizona Weather Extremes for Saturday, January 17, 2026
High Temperature
78°F at Yuma Mcas, AZ
Low Temperature
13°F at Window Rock Airport, AZ
Max Rain
none
USA Weather Extremes for Saturday, January 17, 2026
High Temperature
89°F at Cyril E. King Airport, VI
Low Temperature
-14°F at International Falls Intl Ap, MN
Max Rain
0.52in at Concord Asos, NH
National and State Weather Extremes (Data courtsey of NWS-CPC)
Today in Weather History
January 18,
)

January 18,
)

[ More Weather History ]