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Extreme Heat Warning EXTREME HEAT WARNING - 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-Jul-2026 @ 9:45pm  
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Colder 1.1°F than last hour.

84.9°F

Heat Index:  94.9°F
Feels like:  94.9°F
---
High Today
97.0°F
2:16 PM 		Low Today
79.4°F
5:41 AM
Yest High
96.3°F
3:01 PM 		Yest Low
78.0°F
5:17 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
Night time, Dry Night time, Dry

Calm Wind:  SE
0.0
Gusting to:
 0.0 mph
Current Rain Rain:
0.00 in
Chandler Burning Index: LOW Current CBI
Fire Danger:
2.8 of 100
Tonight

Tonight: Mostly Clear
Mostly Clear
Thursday

Thursday: Sunny
Sunny
Thursday
Night
Thursday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Lo 75 °F Hi 93 °F Lo 74 °F
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Increased 0.9°F since last hour. 76.5°F
Last Hour: Increased 0.9°F since last hour. 0.9°F
High 12:13 PM: 80.0°F
Low 6:18 PM: 73.7°F
Record High: 82.0°F on
Jun-30-2026
Record Low: 26.8°F on
May-7-2026
Wetbulb: 79.0°F
Rain Today
rain graph
Today: 0.00 in
Yesterday: 0.00 in
Last 7 Days: 0.92 in
Jul Rain: 0.00 in
Jul to Date
  Avg:10 		0.00 in
Jul to Date
  Diff from Avg:10 		No Change 0.00 in
Jul Avg: 0.00 in
Diff from Avg: No Change 0.00 in
Season:1 14.32 in
YTD
  Avg:11 		14.19 in
YTD
  Diff from Avg:11 		Over 0.13 in for the year 0.13 in
Last Rain
Time/Date: 		Jun-25-2026
at 6:26 AM
20 rain days in 2026
0 days in July
6 days since last rain
Current: SE  0.0 mph
1Hr Average: Calm
Wind Run: 5.30 miles
Wind Gust
Current: 0.0 mph
Today: 9.0 mph 1:36 PM
Month: 8.7 mph 1-Jul
Year: 19.1 mph 10-Jun
Record Gust: 19.1 mph
Jun-10-2026
Sunlight:
15 h 10 m 29 s
of Sunlight Yesterday
15 h 9 m 51 s
of Sunlight Today Which is 38 sec shorter than
yesterday
0 h 0 m 0 s
of Sunlight Tomorrow
 (Noon) graph (Midnight)
 Legend

Waning Gibbous
Waning Gibbous, 16 days, 23 hours, 54 minutes in cycle
96%
Illuminated
Humidity Barometer
Current: Increased 5% since last hour. 76%
Last Hour: Increased 5% since last hour. 5%
High 1:33 AM: 87%
Low 2:32 PM: 49%
Record High: 97%
May-24-2026
Record Low: 21%
Jun-2-2026
Current: Rising 0.017 inHg/hr 29.384 inHg
Last Hour: Rising slowly
High 8:43 AM: 29.420
Low 5:19 AM: 29.357
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: 16.9
Jul: 16.9
2026 to Date: 247.0
Heating Degree Days
2026 to Date: 161.4
Current: 94.9°F
High 12:13pm: 114.5°F
Yesterday: 120.0°F
Record: 120.0°F
Jun-30-2026
Quality
Index6:
64

Moderate
Density:
1.13 kg/m3
UV Summary/Forecast Solar Summary
Jul-01

10.4 		Jul-02

10.7 		Jul-03

9.6
Sunrise is at: 5:21 am
Solar Noon: 12:56
Sunset is at: 8:30 pm
Almanac   Station All Time Records Cloud Level
Currently: Evening
YTD Avg Temp: 66.8°F
Sunrise: 5:21 am
Sunset: 8:30 pm
Moonrise: 10:06 pm
Moonset: 7:39 am
Full Moon: Jun-29-2026
New Moon: 09:44 UTC
Jul-14-2026
HIGHS: LOWS:
97.0°F
Jul-1-2026 		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:1 | S3C2:0 | Ajax 3.xx
ISS:Ok | CON:4.7 | RCP:100%
METRIC | IMPERIAL
Updated: 01-Jul-2026 @ 9:45pm  
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 July for this station since 2012.   11 Historical average rain this season to day 1 of July for this station since 2012.
 NWS Weather Forecast   -   Outlook Tonight & Thursday
Tonight

Tonight: Mostly Clear
Mostly Clear

Lo 75 °F 		NWS forecast: Mostly clear, with a low around 75. Heat index values as high as 97. Southwest wind 5 to 10 mph, with gusts as high as 25 mph.
Local station forecast: Mostly cloudy and cooler, precipitation possible within 12 hours, possibly heavy at times, windy. 		Thursday

Thursday: Sunny
Sunny

Hi 93 °F 		NWS forecast: Sunny. High near 93, with temperatures falling to around 91 in the afternoon. Heat index values as high as 102. South southwest wind 5 to 15 mph.
 NWS Short Term Weather Forecast
Thursday
Night
Thursday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Friday

Friday: Showers And Thunderstorms Likely
Showers And T-Storms Likely
Friday
Night
Friday Night: Showers And Thunderstorms Likely
Showers And T-Storms Likely
Independence
Day
Independence Day: Showers And Thunderstorms Likely
Showers And T-Storms Likely
Saturday
Night
Saturday Night: Showers And Thunderstorms Likely
Showers And T-Storms Likely
Sunday

Sunday: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Sunday
Night
Sunday Night: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
Lo 74 °F Hi 90 °F Lo 72 °F Hi 87 °F Lo 69 °F Hi 86 °F Lo 67 °F



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Jetstream from WeatherUnderground.com
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Sea Surface Tempeatures from SSEC.wisc.edu
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