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Extreme Heat Warning EXTREME HEAT WARNING - DuPage County
Heat Advisory HEAT ADVISORY - Will County

NWS Central Great Lakes Regional Radar WU North Central Satellite
Radar/Satellite images courtesy of NOAA/NWS and Weather Underground.
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METRIC | IMPERIAL
Updated: 04-Sep-2026 @ 2:50pm  
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Warmer 1.8°F than last hour.

93.3°F

Heat Index:  107.7°F
Feels like:  107.7°F
---
High Today
93.7°F
2:45 PM 		Low Today
76.0°F
7:15 AM
Yest High
95.0°F
5:55 PM 		Yest Low
77.5°F
2:57 AM
Sta* High
---°F
2026 		Sta* Low
---°F
2026
* This Station's Records Since 12/2012
Rec* High
32.0°F
0 		Rec* Low
32.0°F
0
* Records from Weather Underground
Day time Day time

Wind from SE Wind:  SE
0.7
Gusting to:
 0.9 mph
Current Rain Rain:
0.00 in
Chandler Burning Index: LOW Current CBI
Fire Danger:
12.6 of 100
This
Afternoon
This Afternoon: Sunny
Sunny
Tonight

Tonight: Partly Cloudy then Chance Showers And Thunderstorms
Partly Cloudy then Chance Showers And T-Storms
Saturday

Saturday: Patchy Fog then Sunny
Patchy Fog then Sunny
Hi 92 °F Lo 72 °F Hi 87 °F
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Increased 1.7°F since last hour. 76.8°F
Last Hour: Increased 1.7°F since last hour. 1.7°F
High 2:33 PM: 77.7°F
Low 6:54 AM: 71.9°F
Record High: 82.4°F on
Sep-1-2026
Record Low: 26.8°F on
May-7-2026
Wetbulb: 81.5°F
Rain Today
rain graph
Today: 0.00 in
Yesterday: 0.00 in
Last 7 Days: 0.50 in
Sep Rain: 0.00 in
Sep to Date
  Avg:10 		0.00 in
Sep to Date
  Diff from Avg:10 		No Change 0.00 in
Sep Avg: 0.00 in
Diff from Avg: No Change 0.00 in
Season:1 28.97 in
YTD
  Avg:11 		28.71 in
YTD
  Diff from Avg:11 		Over 0.26 in for the year 0.26 in
Last Rain
Time/Date: 		Aug-31-2026
at 5:38 PM
40 rain days in 2026
0 days in September
3 days since last rain
Current: SE  0.7 mph
1Hr Average: 1.8 mph
Wind Run: 17.36 miles
Wind Gust
Current: 0.9 mph
Today: 14.0 mph 12:13 PM
Month: 13.9 mph 4-Sep
Year: 22.6 mph 3-Jul
Record Gust: 22.6 mph
Jul-3-2026
Sunlight:
13 h 2 m 13 s
of Sunlight Yesterday
12 h 59 m 30 s
of Sunlight Today Which is
2 min 43 sec shorter than
yesterday
0 h 0 m 0 s
of Sunlight Tomorrow
 (Noon) graph (Midnight)
 Legend

Waning Crescent
Waning Crescent, 23 days, 2 hours, 13 minutes in cycle
44%
Illuminated
Humidity Barometer
Current: No Change 59%
Last Hour: No Change 0%
High 1:54 AM: 91%
Low 1:28 PM: 56%
Record High: 97%
May-24-2026
Record Low: 21%
Jun-2-2026
Current: Falling 0.027 inHg/hr 29.335 inHg
Last Hour: Falling slowly
High 11:36 AM: 29.441
Low 4:50 AM: 29.303
Record High: 29.787 inHg
Jun-3-2026
Record Low: 28.777 inHg
Jun-17-2026
Cooling Degree Days Coming Soon Heat Index Air
Today: 8.6
Sep: 69.8
2026 to Date: 907.0
Heating Degree Days
2026 to Date: 161.4
Current: 107.7°F
High 2:39pm: 109.0°F
Yesterday: 110.2°F
Record: 120.7°F
Sep-1-2026
Quality
Index6:
52

Moderate
Density:
1.11 kg/m3
UV Summary/Forecast Solar Summary
Sep-04

7.0 		Sep-05

7.0 		Sep-06

7.1
Sunrise is at: 6:20 am
Solar Noon: 12:50
Sunset is at: 7:21 pm
Almanac   Station All Time Records Cloud Level
Currently: Afternoon
YTD Avg Temp: 71.5°F
Sunrise: 6:20 am
Sunset: 7:21 pm
Moonrise: 10:43 pm
Moonset: 2:49 pm
Full Moon: Aug-28-2026
New Moon: 03:28 UTC
Sep-11-2026
HIGHS: LOWS:
98.8°F
Jul-14-2026 		29.3°F
May-7-2026
Daytime Records
  91.2°F
Jul-01-2026 		  54.0°F
May-06-2026
Nitetime Records
  84.2°F
Jul-01-2026 		  39.6°F
May-07-2026
ICN:5 | S3C2:0 | Ajax 3.xx
ISS:Ok | CON:4.7 | RCP:100%
METRIC | IMPERIAL
Updated: 04-Sep-2026 @ 2:50pm  
1 Rain season: Jan 1st to Dec 31st.   2 Snow season July 1st to June 30th.   3 Snow manually measured usually around 7AM and 7PM.   6 Air Quality Index is provided by Minnesota Polution Control Agency and is updated hourly between the hours of 6AM and Midnight.   10 Historical average only to day 4 of just the month of September for this station since 2012.   11 Historical average rain this season to day 4 of September for this station since 2012.
  Weather Forecast   -   Outlook This Afternoon & Tonight
This
Afternoon
This Afternoon: Sunny
Sunny

Hi 92 °F 		NWS forecast: Sunny, with a high near 92. Heat index values as high as 104. South southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Local station forecast: Increasing clouds and cooler, precipitation possible within 6 hrs, windy with possible wind shift to the w, nw, or n. 		Tonight

Tonight: Partly Cloudy then Chance Showers And Thunderstorms
Partly Cloudy then Chance Showers And T-Storms

Lo 72 °F 		NWS forecast: A chance of showers and thunderstorms between midnight and 4am, then patchy fog and a slight chance of showers and thunderstorms. Partly cloudy. Low around 72, with temperatures rising to around 74 overnight. Heat index values as high as 99. West southwest wind 0 to 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
  Short Term Weather Forecast
Saturday

Saturday: Patchy Fog then Sunny
Patchy Fog then Sunny
Saturday
Night
Saturday Night: Mostly Clear
Mostly Clear
Sunday

Sunday: Sunny
Sunny
Sunday
Night
Sunday Night: Mostly Clear
Mostly Clear
Labor
Day
Labor Day: Sunny
Sunny
Monday
Night
Monday Night: Partly Cloudy
Partly Cloudy
Tuesday

Tuesday: Mostly Sunny
Mostly Sunny
Hi 87 °F Lo 66 °F Hi 82 °F Lo 62 °F Hi 82 °F Lo 63 °F Hi 88 °F



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