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Heat Advisory HEAT ADVISORY - DuPage County  - 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: 01-Sep-2026 @ 11:10am  
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Warmer 3.4°F than last hour.

91.7°F

Heat Index:  109.6°F
Feels like:  109.6°F
---
High Today
91.7°F
11:08 AM 		Low Today
75.7°F
6:25 AM
Yest High
93.9°F
2:19 PM 		Yest Low
71.4°F
9:11 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 ESE Wind:  ESE
0.8
Gusting to:
 0.9 mph
Current Rain Rain:
0.00 in
Chandler Burning Index: LOW Current CBI
Fire Danger:
7.0 of 100
Today

Today: Mostly Sunny
Mostly Sunny
Tonight

Tonight: Mostly Clear
Mostly Clear
Wednesday

Wednesday: Sunny
Sunny
Hi 92 °F Lo 73 °F Hi 92 °F
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Increased 1.2°F since last hour. 79.2°F
Last Hour: Increased 1.2°F since last hour. 1.2°F
High 11:07 AM: 80.0°F
Low 5:45 AM: 72.7°F
Record High: 82.2°F on
Jul-3-2026
Record Low: 26.8°F on
May-7-2026
Wetbulb: 82.6°F
Rain Today
rain graph
Today: 0.00 in
Yesterday: 0.22 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
0 days since last rain
Current: ESE  0.8 mph
1Hr Average: 0.1 mph
Wind Run: 0.25 miles
Wind Gust
Current: 0.9 mph
Today: 4.3 mph 10:48 AM
Month: 4.3 mph 1-Sep
Year: 22.6 mph 3-Jul
Record Gust: 22.6 mph
Jul-3-2026
Sunlight:
13 h 10 m 19 s
of Sunlight Yesterday
13 h 7 m 37 s
of Sunlight Today Which is
2 min 42 sec shorter than
yesterday
0 h 0 m 0 s
of Sunlight Tomorrow
 (Noon) graph (Midnight)
 Legend

Waning Gibbous
Waning Gibbous, 19 days, 22 hours, 35 minutes in cycle
78%
Illuminated
Humidity Barometer
Current: Decreased 5% since last hour. 67%
Last Hour: Decreased 5% since last hour. 5%
High 5:48 AM: 91%
Low 11:09 AM: 67%
Record High: 97%
May-24-2026
Record Low: 21%
Jun-2-2026
Current: No Change 29.394 inHg
Last Hour: Steady
High 7:47 AM: 29.409
Low 1:16 AM: 29.344
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: 6.2
Sep: 6.2
2026 to Date: 843.2
Heating Degree Days
2026 to Date: 161.4
Current: 109.6°F
High 11:07am: 110.1°F
Yesterday: 106.8°F
Record: 120.0°F
Jun-30-2026
Quality
Index6:
38

Good
Density:
1.12 kg/m3
UV Summary/Forecast Solar Summary
Sep-01

7.6 		Sep-02

7.3 		Sep-03

7.3
Sunrise is at: 6:17 am
Solar Noon: 12:51
Sunset is at: 7:26 pm
Almanac   Station All Time Records Cloud Level
Currently: Morning
YTD Avg Temp: 71.1°F
Sunrise: 6:17 am
Sunset: 7:26 pm
Moonrise: 8:55 pm
Moonset: 11:12 am
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: 01-Sep-2026 @ 11:10am  
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 1 of just the month of September for this station since 2012.   11 Historical average rain this season to day 1 of September for this station since 2012.
  Weather Forecast   -   Outlook Today & Tonight
Today

Today: Mostly Sunny
Mostly Sunny

Hi 92 °F 		NWS forecast: Mostly sunny, with a high near 92. Heat index values as high as 104. Southwest wind 5 to 10 mph.
Local station forecast: Mostly cloudy and cooler, precipitation possible within 12 hours, possibly heavy at times, windy. 		Tonight

Tonight: Mostly Clear
Mostly Clear

Lo 73 °F 		NWS forecast: Mostly clear, with a low around 73. Heat index values as high as 100. Southwest wind around 5 mph, with gusts as high as 15 mph.
  Short Term Weather Forecast
Wednesday

Wednesday: Sunny
Sunny
Wednesday
Night
Wednesday Night: Mostly Clear
Mostly Clear
Thursday

Thursday: Scattered Showers And Thunderstorms
Scattered Showers And T-Storms
Thursday
Night
Thursday Night: Scattered Showers And Thunderstorms then Mostly Clear
Scattered Showers And T-Storms then Mostly Clear
Friday

Friday: Scattered Showers And Thunderstorms
Scattered Showers And T-Storms
Friday
Night
Friday Night: Partly Cloudy then Chance Showers And Thunderstorms
Partly Cloudy then Chance Showers And T-Storms
Saturday

Saturday: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Hi 92 °F Lo 74 °F Hi 89 °F Lo 75 °F Hi 88 °F Lo 72 °F Hi 88 °F



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