Current Conditions

Naperville, Illinois

78°F25°C
Partly Cloudy

Wind

SSE 3 mph4 km/h

Humidity

37%

Cloud Cover

80%

As of Thursday, July 23, 2026 at 3:39 PM CDT

Today's Outlook

Day

Mostly cloudy and warm, with a high of 78°F25°C. Light wind from the SSE around 2 mph4 km/h. Dry air.

Night

Overcast, with a low around 67°F19°C. Light wind from the SE around 4 mph6 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
ThursdayJul 23Partly CloudyHigh 78°F25°CLow 67°F19°CPrecip 0 in0 mmCloud 79%Wind SE 3 mph5 km/hThursday: Mostly cloudy and warm, with a high of 78°F25°C. Light wind from the SSE around 2 mph4 km/h. Dry air. Thursday Night: Overcast, with a low around 67°F19°C. Light wind from the SE around 4 mph6 km/h.
FridayJul 24Partly CloudyHigh 80°F27°CLow 61°F16°CPrecip 0 in0 mmCloud 61%Wind S 4 mph7 km/hFriday: Mostly cloudy and warm, with a high of 80°F27°C and morning low of 63°F17°C. Light wind from the S around 4 mph7 km/h. Friday Night: Mostly cloudy, with a low around 61°F16°C. Light wind from the S around 5 mph7 km/h.
SaturdayJul 25Partly CloudyHigh 82°F28°CFeels 85°F29°CLow 63°F17°CPrecip 0 in0 mmCloud 47%Wind SW 6 mph10 km/hSaturday: Mostly cloudy and warm, with a high of 82°F28°C and morning low of 65°F19°C. Breezy from the SW at 7 to 9 mph12 to 14 km/h. Saturday Night: Partly cloudy, with a low around 63°F17°C. Breezy from the SW at 5 to 7 mph9 to 11 km/h.
SundayJul 26DrizzleHigh 91°F33°CFeels 98°F37°CLow 72°F22°CPrecip 0.04 in1 mm11%Cloud 64%Wind SW 6 mph9 km/hSunday: Mostly cloudy and hot, with a high of 91°F33°C and morning low of 73°F23°C — feels like 99°F37°C. Breezy from the SW at 6 to 8 mph10 to 13 km/h. Heat risk in the afternoon. Sunday Night: Mostly cloudy, with a low around 72°F22°C. Light wind from the SW around 6 mph9 km/h. 11% chance of drizzle in the evening.
MondayJul 27ShowersHigh 91°F33°CFeels 100°F38°CLow 75°F24°CPrecip 0.31 in7.8 mm41%Cloud 52%Wind SW 8 mph12 km/hMonday: Mostly cloudy and hot, with a high of 91°F33°C and morning low of 75°F24°C — feels like 100°F38°C. Breezy from the SW at 8 to 10 mph13 to 16 km/h. 41% chance of showers throughout the day. Heat risk in the afternoon. Monday Night: Partly cloudy, with a low around 76°F24°C. Breezy from the SW at 7 to 8 mph11 to 12 km/h. 23% chance of showers throughout the night.
TuesdayJul 28ShowersHigh 85°F29°CLow 71°F22°CPrecip 0.07 in1.7 mm18%Cloud 33%Wind N 8 mph13 km/hTuesday: Partly cloudy and warm, with a high of 85°F29°C and morning low of 75°F24°C. Breezy from the N at 9 mph14 km/h. 10% chance of drizzle around midday. Humid. Tuesday Night: Mostly clear, with a low around 71°F22°C. Breezy from the N at 7 to 8 mph12 to 12 km/h. 18% chance of showers throughout the night.
WednesdayJul 29ClearHigh 84°F29°CLow 66°F19°CPrecip 0.02 in0.4 mm6%Cloud 18%Wind NNE 6 mph10 km/hWednesday: Mostly clear and warm, with a high of 84°F29°C and morning low of 67°F19°C. Light wind from the NNE around 6 mph10 km/h. Wednesday Night: Mostly clear, with a low around 66°F19°C. Light wind from the NE around 6 mph9 km/h.

15-Day Forecast

Day High (°F) Low (°F) Precip (mm) Cloud Cover (%) Condition Wind (mph)

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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PatternExampleDescription
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/weather/{country}//weather/germany/Country index — all cities by region

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