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Special Weather Statement SPECIAL WEATHER STATEMENT - DuPage County

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METRIC | IMPERIAL
Updated: 20-Aug-2025 @ 2:30pm  
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Warmer 1.9°F than last hour.

77.2°F

---
High Today
77.3°F
2:29 PM 		Low Today
66.8°F
1:59 AM
Yest High
79.8°F
1:11 PM 		Yest Low
68.4°F
11:31 PM
Sta* High
95.1°F
2023 		Sta* Low
53.4°F
2024
* This Station's Records Since 12/2012
Overcast and gloomy, Dry Overcast and gloomy, Dry

Wind from W Wind:  W
0.7
Gusting to:
 0.0 mph
Current Rain Rain:
0.01 in
Chandler Burning Index: LOW Current CBI
Fire Danger:
5.5 of 100
This
Afternoon
This Afternoon: Mostly Sunny
Mostly Sunny
Tonight

Tonight: Mostly Clear then Patchy Fog
Mostly Clear then Patchy Fog
Thursday

Thursday: Patchy Fog then Sunny
Patchy Fog then Sunny
Hi 78 °F Lo 62 °F Hi 78 °F
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Decreased 0.9°F since last hour. 65.8°F
Last Hour: Decreased 0.9°F since last hour. 0.9°F
High 9:59 AM: 70.1°F
Low 2:25 PM: 65.0°F
Record High: 84.9°F on
Aug-27-2024
Record Low: -15.2°F on
Jan-21-2025
Wetbulb: 69.9°F
Today: 0.01 in
Yesterday: 0.14 in
Last 7 Days: 5.38 in
Aug Rain: 10.90 in
Aug to Date
  Avg:10 		0.00 in
Aug to Date
  Diff from Avg:10 		Over 10.9 in for the month 10.90 in
Aug Avg: 3.41 in
Diff from Avg: Over 7.49 in for the month 7.49 in
Season:1 26.830 in
YTD
  Avg:11 		18.33 in
YTD
  Diff from Avg:11 		Over 8.5 in for the year 8.50 in
Last Rain
Time/Date: 		Aug-20-2025
at 7:11 AM
55 rain days in 2025
9 days in August
0 days since last rain
Current: W  0.7 mph
1Hr Average: 0.3 mph
Wind Run: 0.82 miles
Wind Gust
Current: 0.0 mph
Today: 8.1 mph 10:47 AM
Month: 19.0 mph 17-Aug
Year: 29.0 mph 14-Mar
Record Gust: 29.0 mph
Mar-14-2025
Sunlight:
13 h 26 m 25 s
of Sunlight Yesterday
13 h 24 m 16 s
of Sunlight Today Which is
2 min 9 sec shorter than
yesterday
0 h 0 m 0 s
of Sunlight Tomorrow
 (Noon) graph (Midnight)
 Legend

Waning Crescent
Waning Crescent, 27 days, 0 hours, 24 minutes in cycle
7%
Illuminated
Humidity Barometer
Current: Decreased 7% since last hour. 68%
Last Hour: Decreased 7% since last hour. 7%
High 3:09 AM: 97%
Low 2:25 PM: 67%
Record High: 98%
Sep-25-2024
Record Low: 23%
May-9-2025
Current: Falling 0.006 inHg/hr 29.952 inHg
Last Hour: Steady
High 12:32 PM: 29.967
Low 3:18 AM: 29.897
Record High: 30.708 inHg
Dec-13-2024
Record Low: 28.963 inHg
Mar-5-2025
Cooling Degree Days Coming Soon Heat Index Air
Today: 2.1
Aug: 222.5
2025 to Date: 773.0
Heating Degree Days
2025 to Date: 3409.6
Current: 79.1°F
High 2:29pm: 77.3°F
Yesterday: 79.8°F
Record: 126.5°F
Aug-27-2024
Data Not
Available

Data Not Available
Density:
1.18 kg/m3
UV Summary/Forecast Solar Summary
Aug-20

8.8 		Aug-21

9.2 		Aug-22

9.6
Sunrise is at: 6:05 am
Solar Noon: 12:55
Sunset is at: 7:45 pm
Almanac   Station All Time Records Cloud Level
Currently: Afternoon
YTD Avg Temp: 50.1°F
Sunrise: 6:05 am
Sunset: 7:45 pm
Moonrise: 2:48 am
Moonset: 6:31 pm
Full Moon: Aug-09-2025
New Moon: 06:07 UTC
Aug-23-2025
HIGHS: LOWS:
101.7°F
Aug-27-2024 		-8.1°F
Jan-21-2025
Daytime Records
  91.6°F
Jun-17-2024 		  -1.8°F
Jan-21-2025
Nitetime Records
  84.2°F
Jun-18-2024 		  0.7°F
Jan-21-2025
ICN:19 | S3C2:0 | Ajax 3.xx
ISS:Ok | CON:4.4 | RCP:100%
1 Rain season: Jan 1st to Dec 31st.   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 20 of just the month of August for this station since 2012.   11 Historical average rain this season to day 20 of August for this station since 2012.
 NWS Weather Forecast   -   Outlook This Afternoon & Tonight
This
Afternoon
This Afternoon: Mostly Sunny
Mostly Sunny

Hi 78 °F 		NWS forecast: Mostly sunny. High near 78, with temperatures falling to around 75 in the afternoon. North northeast wind around 10 mph, with gusts as high as 20 mph.
Local station forecast: Increasing clouds with little temp change. 		Tonight

Tonight: Mostly Clear then Patchy Fog
Mostly Clear then Patchy Fog

Lo 62 °F 		NWS forecast: Patchy fog after midnight. Mostly clear, with a low around 62. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.
 NWS Short Term Weather Forecast
Thursday

Thursday: Patchy Fog then Sunny
Patchy Fog then Sunny
Thursday
Night
Thursday Night: Mostly Clear
Mostly Clear
Friday

Friday: Sunny
Sunny
Friday
Night
Friday Night: Partly Cloudy
Partly Cloudy
Saturday

Saturday: Chance Rain Showers then Slight Chance Showers And Thunderstorms
Chance Rain Showers then Slight Chance Showers And T-Storms
Saturday
Night
Saturday Night: Slight Chance Showers And Thunderstorms then Mostly Clear
Slight Chance Showers And T-Storms then Mostly Clear
Sunday

Sunday: Sunny
Sunny
Hi 78 °F Lo 62 °F Hi 83 °F Lo 64 °F Hi 81 °F Lo 56 °F Hi 72 °F
Current Conditions
US Fronts from NWS
Sky Cover from the NWS
Today's Sky Cover
Current Sat/Rad/Fronts from SSEC.edu
NWS Regional Radar Loop
Regional Radar
Weather Underground Regional Radar Loop
Regional Radar
NWS National Radar Loop
USA (CONUS) Radar
Weather Underground Current US Radar
Current Watches and Warnings
Regional Satellite
WU North Central Satellite
Radar/Satellite images courtesy of NOAA/NWS and Weather Underground.
Current US Satellite Provided courtesy of UW-Madison SSEC"
Current US Satellite Animation Provided courtesy of NOAA"
Jetstream from WeatherUnderground.com
Tropical Update
Sea Surface Tempeatures from SSEC.wisc.edu
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