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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: 03-Sep-2026 @ 2:15pm  
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Warmer 4°F than last hour.

90.6°F

Heat Index:  101.7°F
Feels like:  101.7°F
---
High Today
93.3°F
10:39 AM 		Low Today
77.5°F
2:57 AM
Yest High
97.7°F
2:01 PM 		Yest Low
76.9°F
6:20 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

Calm Wind:  E
0.0
Gusting to:
 0.0 mph
Current Rain Rain:
0.00 in
Chandler Burning Index: LOW Current CBI
Fire Danger:
11.5 of 100
This
Afternoon
This Afternoon: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Tonight

Tonight: Slight Chance Showers And Thunderstorms then Mostly Clear
Slight Chance Showers And T-Storms then Mostly Clear
Friday

Friday: Slight Chance Showers And Thunderstorms then Mostly Sunny
Slight Chance Showers And T-Storms then Mostly Sunny
Hi 91 °F Lo 73 °F Hi 92 °F
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Increased 0.5°F since last hour. 74.8°F
Last Hour: Increased 0.5°F since last hour. 0.5°F
High 10:38 AM: 78.7°F
Low 6:42 AM: 73.1°F
Record High: 82.4°F on
Sep-1-2026
Record Low: 26.8°F on
May-7-2026
Wetbulb: 79.5°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
2 days since last rain
Current: E  0.0 mph
1Hr Average: 0.3 mph
Wind Run: 9.37 miles
Wind Gust
Current: 0.0 mph
Today: 10.0 mph 11:11 AM
Month: 9.6 mph 3-Sep
Year: 22.6 mph 3-Jul
Record Gust: 22.6 mph
Jul-3-2026
Sunlight:
13 h 4 m 55 s
of Sunlight Yesterday
13 h 2 m 13 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, 22 days, 1 hours, 40 minutes in cycle
56%
Illuminated
Humidity Barometer
Current: Decreased 7% since last hour. 60%
Last Hour: Decreased 7% since last hour. 7%
High 3:00 AM: 91%
Low 10:26 AM: 60%
Record High: 97%
May-24-2026
Record Low: 21%
Jun-2-2026
Current: Falling 0.023 inHg/hr 29.359 inHg
Last Hour: Falling slowly
High 12:29 PM: 29.399
Low 12:07 AM: 29.343
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: 8.8
Sep: 50.1
2026 to Date: 887.2
Heating Degree Days
2026 to Date: 161.4
Current: 101.7°F
High 10:38am: 110.2°F
Yesterday: 114.8°F
Record: 120.7°F
Sep-1-2026
Quality
Index6:
38

Good
Density:
1.12 kg/m3
UV Summary/Forecast Solar Summary
Sep-03

7.7 		Sep-04

7.1 		Sep-05

6.6
Sunrise is at: 6:19 am
Solar Noon: 12:51
Sunset is at: 7:23 pm
Almanac   Station All Time Records Cloud Level
Currently: Afternoon
YTD Avg Temp: 71.4°F
Sunrise: 6:19 am
Sunset: 7:23 pm
Moonrise: 9:59 pm
Moonset: 1:39 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: 03-Sep-2026 @ 2:15pm  
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 3 of just the month of September for this station since 2012.   11 Historical average rain this season to day 3 of September for this station since 2012.
  Weather Forecast   -   Outlook This Afternoon & Tonight
This
Afternoon
This Afternoon: Chance Showers And Thunderstorms
Chance Showers And T-Storms

Hi 91 °F 		NWS forecast: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Heat index values as high as 101. East wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Local station forecast: Mostly cloudy and cooler, precipitation possible within 12 hours, possibly heavy at times, windy. 		Tonight

Tonight: Slight Chance Showers And Thunderstorms then Mostly Clear
Slight Chance Showers And T-Storms then Mostly Clear

Lo 73 °F 		NWS forecast: A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 73. Heat index values as high as 98. South wind around 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
  Short Term Weather Forecast
Friday

Friday: Slight Chance Showers And Thunderstorms then Mostly Sunny
Slight Chance Showers And T-Storms then Mostly Sunny
Friday
Night
Friday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Saturday

Saturday: Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
Chance Showers And T-Storms then Slight Chance Showers And T-Storms
Saturday
Night
Saturday Night: Partly Cloudy
Partly Cloudy
Sunday

Sunday: Mostly Sunny
Mostly Sunny
Sunday
Night
Sunday Night: Partly Cloudy
Partly Cloudy
Labor
Day
Labor Day: Mostly Sunny
Mostly Sunny
Hi 92 °F Lo 71 °F Hi 87 °F Lo 66 °F Hi 83 °F Lo 64 °F Hi 83 °F



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