Naperville, IL Weather Forecast
Right now it is 66°F and light rain in Naperville (as of Tue, 11:20 AM CST). Today: high near 70°F. Tomorrow: rain likely, high near 63°F. Official NWS forecast and alerts, refreshed every 30 minutes.
Current conditions
Measured at Chicago / West Chicago, Dupage Airport (11 mi from the city center).
Weather tomorrow in Naperville
Rain Likely
65% chance of rain/snow63°FRain likely before 5pm. Mostly cloudy. High near 63, with temperatures falling to around 58 in the afternoon. South southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
Mostly Cloudy 14% chance of rain/snow48°FMostly cloudy, with a low around 48. Southwest wind around 15 mph, with gusts as high as 25 mph.
Weather alerts
No active National Weather Service watches, warnings or advisories for Naperville right now.
7-day forecast
Cloudy then Slight Chance Showers And Thunderstorms 87% chance of rain/snow70°F / 59°FA slight chance of showers and thunderstorms between noon and 1pm, then a chance of showers and thunderstorms. Cloudy. High near 70, with temperatures falling to around 68 in the afternoon. South wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible. Tonight: Rain and a slight chance of thunderstorms. Mostly cloudy. Low around 59, with temperatures rising to around 61 overnight. South southeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
Rain Likely 65% chance of rain/snow63°F / 48°FRain likely before 5pm. Mostly cloudy. High near 63, with temperatures falling to around 58 in the afternoon. South southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible. Wednesday Night: Mostly cloudy, with a low around 48. Southwest wind around 15 mph, with gusts as high as 25 mph.
Chance Rain 36% chance of rain/snow57°F / 44°FA chance of rain. Mostly cloudy, with a high near 57. West southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. Thursday Night: A chance of rain. Cloudy, with a low around 44. Chance of precipitation is 40%.
Chance Rain 25% chance of rain/snow53°F / 37°FA chance of rain. Mostly cloudy, with a high near 53. Friday Night: Partly cloudy, with a low around 37.
Mostly Sunny52°F / 36°FMostly sunny, with a high near 52. Saturday Night: Partly cloudy, with a low around 36.
Mostly Sunny56°F / 37°FMostly sunny, with a high near 56. Sunday Night: Mostly clear, with a low around 37.
Sunny60°F / 41°FSunny, with a high near 60. Monday Night: Partly cloudy, with a low around 41.
Forecast issued by NWS forecast office LOT · updated Nov 3, 10:31 AM CST. Daytime highs and overnight lows are on the right.
Hourly forecast, radar & more on weather.gov
Nearby cities
Naperville population: 153,114 (U.S. Census Bureau, July 1, 2025 estimate). More Illinois cities · All US cities
Source: National Weather Service / NOAA (public domain), fetched live. Tachlis is not affiliated with the NWS.
Questions & answers
What is the weather tomorrow in Naperville?
Wednesday, November 4: Rain Likely, high near 63°F; night: mostly cloudy, low around 48°F.
Where does the Naperville forecast come from?
From the National Weather Service forecast office LOT, which writes the official forecast for Naperville's 2.5 km grid square. Current conditions come from the nearest NWS/FAA weather station.
How often is the Naperville weather updated?
This page fetches fresh data from the National Weather Service at most every 30 minutes, and checks for new watches and warnings every 5 minutes.
What time zone are the times shown in?
Local time for Naperville (America/Chicago).
Why can the current temperature differ from the forecast?
The current reading is a real measurement at a weather station, often at an airport, while the forecast describes the whole grid square around the city. Temperatures can differ by a few degrees across a city.