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 Details for Naperville Flood Advisory  +1 additional alert

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Flood Advisory FLOOD ADVISORY - Naperville
Flood Watch FLOOD WATCH - Naperville

NWS Central Great Lakes Regional Radar WU North Central Satellite
Radar/Satellite images courtesy of NOAA/NWS and Weather Underground.
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Updated: @ 21-Jul-2026 3:42pm - next update at 3:45pm  
Summary / Temperature Wind Rain Outlook
Overcast Overcast
Currently: 82.6, Max: 83.6, Min: 69.6 82.6°F
Warmer 0.1°F than last hour.

Warm

Feels like: 79°F

24-hr difference
3.6°FWarmer 3.6°F than yesterday at this time.
  Today Yesterday
High: 83.6°F
3:23pm 		81.3°F
5:05pm
Low: 69.6°F
6:11am 		57.2°F
5:50am
Wind from NNW NNW
4
Gust:
 11 mph
1 Bft - Light air
Today: 16 mph 12:05pm
Gust Month: 28.0 mph July 3
Rain Today: 0 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0 in
This Month: 0.02 in
Season Total: 12.65 in
23 days since last rain.
Tonight

Tonight: Chance Showers And Thunderstorms then Mostly Cloudy
Chance Showers And T-Storms then Mostly Cloudy
Humidity & Barometer Almanac Moon
Humidity: 1 %  
Dew Point: -27.6°F  
Barometer: 29.776 inHg Rising 0.01 inHg/hr
Baro Trend: Steady
Sunrise: 5:46am
Sunset: 8:13pm
Moonset: 8:50am
Moonrise: 9:41pm
Waning Gibbous
Waning Gibbous, Moon at 17 days in cycle
90%
Illuminated
UV Index Solar Radiation
   1.9     Low 
High: 6.4 @ 12:45pm
204 W/m2
High: 984 @  1:24pm
 NWS Weather Forecast  - Outlook: This Afternoon & Tonight
This
Afternoon
This Afternoon: Chance Showers And Thunderstorms
Chance Showers And T-Storms

Hi 70 °F		 NWS forecast: A chance of rain showers before 4pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 70. Northeast wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
Davis VP+ forecast: Mostly cloudy and cooler. Precipitation possible within 12 hours, possibly heavy at times. Windy.
 
Tonight

Tonight: Chance Showers And Thunderstorms then Mostly Cloudy
Chance Showers And T-Storms then Mostly Cloudy

Lo 66 °F		 NWS forecast: A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 66. North northeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
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