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 Details for DuPage County Extreme Heat Warning  +1 additional alert
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Extreme Heat Warning EXTREME HEAT WARNING - DuPage County
Extreme Heat Watch EXTREME HEAT WATCH - DuPage 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: 25-Jul-2026 @ 10:45am  
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Warmer 0.2°F than last hour.

77.0°F

---
High Today
77.0°F
10:44 AM 		Low Today
60.3°F
3:56 AM
Yest High
82.2°F
1:24 PM 		Yest Low
59.9°F
5:59 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
0.6
Gusting to:
 1.7 mph
Current Rain Rain:
0.00 in
Chandler Burning Index: LOW Current CBI
Fire Danger:
5.5 of 100
Today

Today: Patchy Drizzle
Patchy Drizzle
Tonight

Tonight: Mostly Cloudy
Mostly Cloudy
Sunday

Sunday: Partly Sunny
Partly Sunny
Hi 78 °F Lo 70 °F Hi 89 °F
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Increased 0.5°F since last hour. 65.6°F
Last Hour: Increased 0.5°F since last hour. 0.5°F
High 9:03 AM: 66.5°F
Low 3:56 AM: 57.0°F
Record High: 82.2°F on
Jul-3-2026
Record Low: 26.8°F on
May-7-2026
Wetbulb: 69.7°F
Rain Today
rain graph
Today: 0.00 in
Yesterday: 0.00 in
Last 7 Days: 0.11 in
Jul Rain: 3.41 in
Jul to Date
  Avg:10 		0.00 in
Jul to Date
  Diff from Avg:10 		Over 3.41 in for the month 3.41 in
Jul Avg: 0.00 in
Diff from Avg: Over 3.41 in for the month 3.41 in
Season:1 17.73 in
YTD
  Avg:11 		14.19 in
YTD
  Diff from Avg:11 		Over 3.54 in for the year 3.54 in
Last Rain
Time/Date: 		Jul-21-2026
at 5:34 AM
25 rain days in 2026
5 days in July
3 days since last rain
Current: ESE  0.6 mph
1Hr Average: Calm
Wind Run: 0.06 miles
Wind Gust
Current: 1.7 mph
Today: 3.5 mph 8:07 AM
Month: 22.6 mph 3-Jul
Year: 22.6 mph 3-Jul
Record Gust: 22.6 mph
Jul-3-2026
Sunlight:
14 h 40 m 3 s
of Sunlight Yesterday
14 h 38 m 11 s
of Sunlight Today Which is
1 min 52 sec shorter than
yesterday
0 h 0 m 0 s
of Sunlight Tomorrow
 (Noon) graph (Midnight)
 Legend

Waxing Gibbous
Waxing Gibbous, 11 days, 6 hours, 4 minutes in cycle
86%
Illuminated
Humidity Barometer
Current: Increased 1% since last hour. 68%
Last Hour: Increased 1% since last hour. 1%
High 4:11 AM: 91%
Low 9:06 AM: 68%
Record High: 97%
May-24-2026
Record Low: 21%
Jun-2-2026
Current: Falling 0.017 inHg/hr 29.424 inHg
Last Hour: Falling slowly
High 12:00 AM: 29.490
Low 10:44 AM: 29.424
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: 0.1
Jul: 260.6
2026 to Date: 491.8
Heating Degree Days
2026 to Date: 161.7
Current: 78.6°F
High 10:44am: 77.0°F
Yesterday: 82.4°F
Record: 120.0°F
Jun-30-2026
Quality
Index6:
52

Moderate
Density:
1.15 kg/m3
UV Summary/Forecast Solar Summary
Jul-25

8.2 		Jul-26

9.0 		Jul-27

9.6
Sunrise is at: 5:39 am
Solar Noon: 12:58
Sunset is at: 8:18 pm
Almanac   Station All Time Records Cloud Level
Currently: Morning
YTD Avg Temp: 69.6°F
Sunrise: 5:39 am
Sunset: 8:18 pm
Moonrise: 6:01 pm
Moonset: 1:36 am
Full Moon: Jul-29-2026
New Moon: 17:37 UTC
Aug-12-2026
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: 25-Jul-2026 @ 10:45am  
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 25 of just the month of July for this station since 2012.   11 Historical average rain this season to day 25 of July for this station since 2012.
 NWS Weather Forecast   -   Outlook Today & Tonight
Today

Today: Patchy Drizzle
Patchy Drizzle

Hi 78 °F 		NWS forecast: Patchy drizzle between 9am and 2pm. Mostly cloudy, with a high near 78. South southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Local station forecast: Mostly cloudy and cooler, precipitation possible within 12 hours, possibly heavy at times, windy. 		Tonight

Tonight: Mostly Cloudy
Mostly Cloudy

Lo 70 °F 		NWS forecast: Mostly cloudy, with a low around 70. South southwest wind 5 to 10 mph.
 NWS Short Term Weather Forecast
Sunday

Sunday: Partly Sunny
Partly Sunny
Sunday
Night
Sunday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Monday

Monday: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Monday
Night
Monday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Tuesday

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

Wednesday: Sunny
Sunny
Hi 89 °F Lo 74 °F Hi 92 °F Lo 71 °F Hi 86 °F Lo 65 °F Hi 87 °F



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