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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 @ 2:35pm  
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Warmer 2.1°F than last hour.

79.8°F

Feels like:  82.8°F
---
High Today
79.8°F
2:34 PM 		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

Calm Wind:  ESE
0.0
Gusting to:
 0.0 mph
Current Rain Rain:
0.00 in
Chandler Burning Index: LOW Current CBI
Fire Danger:
3.5 of 100
This
Afternoon
This Afternoon: Slight Chance Drizzle
Slight Chance Drizzle
Tonight

Tonight: Mostly Cloudy then Patchy Fog
Mostly Cloudy then Patchy Fog
Sunday

Sunday: Patchy Fog then Partly Sunny
Patchy Fog then Partly Sunny
Hi 77 °F Lo 69 °F Hi 90 °F
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Increased 1°F since last hour. 70.4°F
Last Hour: Increased 1°F since last hour. 1°F
High 2:32 PM: 70.7°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: 73.5°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  0.0 mph
1Hr Average: Calm
Wind Run: 0.68 miles
Wind Gust
Current: 0.0 mph
Today: 5.2 mph 10:46 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, 9 hours, 55 minutes in cycle
87%
Illuminated
Humidity Barometer
Current: Decreased 3% since last hour. 73%
Last Hour: Decreased 3% since last hour. 3%
High 4:11 AM: 91%
Low 11:14 AM: 64%
Record High: 97%
May-24-2026
Record Low: 21%
Jun-2-2026
Current: Falling 0.013 inHg/hr 29.404 inHg
Last Hour: Steady
High 12:00 AM: 29.490
Low 2:28 PM: 29.401
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: 0.6
Jul: 261.1
2026 to Date: 492.3
Heating Degree Days
2026 to Date: 161.7
Current: 82.8°F
High 2:34pm: 79.8°F
Yesterday: 82.4°F
Record: 120.0°F
Jun-30-2026
Quality
Index6:
51

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: Afternoon
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 @ 2:35pm  
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 This Afternoon & Tonight
This
Afternoon
This Afternoon: Slight Chance Drizzle
Slight Chance Drizzle

Hi 77 °F 		NWS forecast: A slight chance of drizzle before 3pm. Cloudy, with a high near 77. South southwest wind 5 to 10 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 then Patchy Fog
Mostly Cloudy then Patchy Fog

Lo 69 °F 		NWS forecast: Patchy fog after 3am. Mostly cloudy, with a low around 69. South southwest wind 0 to 5 mph, with gusts as high as 10 mph.
 NWS Short Term Weather Forecast
Sunday

Sunday: Patchy Fog then Partly Sunny
Patchy Fog then 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 90 °F Lo 74 °F Hi 92 °F Lo 71 °F Hi 86 °F Lo 63 °F Hi 84 °F



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