Current Conditions

Naperville, Illinois

89°F32°C
Hot

Feels like96°F35°C

Wind

SW 7 mph11 km/h

Humidity

56%

Cloud Cover

34%

As of Wednesday, September 2, 2026 at 6:23 PM CDT

Today's Outlook

Night

Mostly clear, with a low around 82°F28°C. Breezy from the SW at 7 mph11 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
HotHigh 95°F35°CFeels 102°F39°CLow 82°F28°CFeels 87°F30°CPrecip 0.01 in0.3 mm9%Cloud 24%Wind SW 9 mph14 km/hWednesday: Partly cloudy and hot, with a high of 95°F35°C — feels like 102°F39°C. Breezy from the SW at 10 to 11 mph16 to 18 km/h. Heat risk in the afternoon. Wednesday Night: Mostly clear, with a low around 82°F28°C. Breezy from the SW at 7 mph11 km/h.
DrizzleHigh 91°F33°CFeels 97°F36°CLow 76°F24°CPrecip 0.02 in0.6 mm26%Cloud 40%Wind SSW 6 mph9 km/hThursday: Mostly cloudy and hot, with a high of 91°F33°C and morning low of 76°F24°C — feels like 97°F36°C. Light wind from the SW around 5 mph9 km/h. 26% chance of drizzle in the afternoon. Heat risk in the afternoon. Thursday Night: Mostly clear, with a low around 77°F25°C. Breezy from the S at 6 to 7 mph10 to 11 km/h.
DrizzleHigh 93°F34°CFeels 100°F38°CLow 74°F24°CPrecip 0.04 in0.9 mm17%Cloud 50%Wind S 6 mph9 km/hFriday: Mostly cloudy and hot, with a high of 93°F34°C and morning low of 74°F24°C — feels like 100°F38°C. Light wind from the SSW around 6 mph10 km/h. Heat risk in the afternoon. Friday Night: Partly cloudy, with a low around 75°F24°C. Light wind from the ESE around 5 mph8 km/h. 17% chance of drizzle in the evening.
ShowersHigh 85°F29°CFeels 91°F33°CLow 74°F23°CPrecip 0.14 in3.5 mm33%Cloud 55%Wind NE 6 mph9 km/hSaturday: Mostly cloudy and warm, with a high of 85°F29°C and morning low of 74°F23°C — feels like 91°F33°C. Breezy from the NE at 6 to 7 mph9 to 12 km/h. 32% chance of showers throughout the day. Heavy, humid air. Saturday Night: Mostly cloudy, with a low around 74°F23°C. Breezy from the NE at 6 to 7 mph10 to 12 km/h. 33% chance of showers overnight.
Partly CloudyHigh 81°F27°CLow 69°F21°CPrecip 0.02 in0.6 mm8%Cloud 64%Wind E 6 mph9 km/hSunday: Mostly cloudy and warm, with a high of 81°F27°C and morning low of 69°F21°C. Breezy from the E at 6 to 7 mph10 to 12 km/h. Humid. Sunday Night: Mostly cloudy, with a low around 70°F21°C. Light wind from the ENE around 6 mph9 km/h.
Partly CloudyHigh 83°F28°CLow 66°F19°CPrecip 0 in0.1 mm6%Cloud 54%Wind ESE 6 mph9 km/hMonday: Mostly cloudy and warm, with a high of 83°F28°C and morning low of 66°F19°C. Breezy from the ESE at 6 to 7 mph10 to 11 km/h. Monday Night: Mostly cloudy, with a low around 68°F20°C. Light wind from the ESE around 6 mph9 km/h.
Partly CloudyHigh 90°F32°CLow 67°F19°CPrecip 0.02 in0.4 mm4%Cloud 58%Wind SSE 8 mph13 km/hTuesday: Mostly cloudy and hot, with a high of 90°F32°C and morning low of 67°F19°C. Breezy from the S at 8 to 10 mph13 to 16 km/h. Tuesday Night: Mostly cloudy, with a low around 68°F20°C. Breezy from the SSE at 8 to 9 mph12 to 15 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 295°F35°C
Feels 102°F39°C
82°F28°C
Feels 87°F30°C
0.01 in0.3 mm· 9%24%HotSW 9 mph14 km/h
ThursdaySep 391°F33°C
Feels 97°F36°C
76°F24°C0.02 in0.6 mm· 26%40%DrizzleSSW 6 mph9 km/h
FridaySep 493°F34°C
Feels 100°F38°C
74°F24°C0.04 in0.9 mm· 17%50%DrizzleS 6 mph9 km/h
SaturdaySep 585°F29°C
Feels 91°F33°C
74°F23°C0.14 in3.5 mm· 33%55%ShowersNE 6 mph9 km/h
SundaySep 681°F27°C69°F21°C0.02 in0.6 mm· 8%64%Partly CloudyE 6 mph9 km/h
MondaySep 783°F28°C66°F19°C0 in0.1 mm· 6%54%Partly CloudyESE 6 mph9 km/h
TuesdaySep 890°F32°C67°F19°C0.02 in0.4 mm· 4%58%Partly CloudySSE 8 mph13 km/h
WednesdaySep 992°F33°C
Feels 97°F36°C
76°F25°C0.05 in1.2 mm· 14%42%DrizzleSW 9 mph15 km/h
ThursdaySep 1084°F29°C72°F22°C0.2 in5 mm· 24%52%ShowersWSW 8 mph13 km/h
FridaySep 1183°F28°C67°F20°C0.08 in2 mm· 14%43%DrizzleSW 8 mph12 km/h
SaturdaySep 1283°F28°C66°F19°C0.12 in3 mm· 19%49%ShowersSSW 8 mph13 km/h
SundaySep 1382°F28°C67°F19°C0.13 in3.2 mm· 25%53%ShowersSSW 9 mph14 km/h
MondaySep 1482°F28°C67°F20°C0.15 in3.7 mm· 23%54%ShowersSSW 8 mph13 km/h
TuesdaySep 1580°F26°C65°F18°C0.17 in4.4 mm· 19%51%ShowersSW 8 mph13 km/h
WednesdaySep 1679°F26°C62°F17°C0.11 in2.8 mm· 14%42%DrizzleSW 8 mph12 km/h

Nearby Cities

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

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Coordinates: 41.7859°N, 88.1473°W·Elevation: 216m·Timezone: America/Chicago·Population: 147,100