Naperville, IL Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Naperville, IL in one place.
Mostly sunny, with a high near 80.
Local Weather Overview
This forecast page for Naperville, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Apr 20, 2026 5:35 AM CDT.
The active forecast window currently covers Apr 23 to Apr 26, 2026 for Naperville, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 23 to Apr 26, 2026
- Latest sync
- Apr 20, 2026 5:35 AM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Naperville
Thursday looks like the warmest upcoming period in Naperville at 80 degrees F.
Saturday Night is the coolest period ahead with temperatures near 45 degrees F.
The strongest winds are forecast for Thursday at about 10 to 20 mph S.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 20, 2026 5:35 AM CDT
- Coverage
- 4 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KLOT
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms likely after 7pm. Mostly cloudy, with a low around 61.
Showers and thunderstorms likely. Mostly cloudy, with a high near 73.
A chance of rain showers. Mostly cloudy, with a low around 48.
A slight chance of rain showers before 7am. Mostly sunny, with a high near 66.
A slight chance of rain showers after 7pm. Partly cloudy, with a low around 45.
A slight chance of rain showers before 7am. Mostly sunny, with a high near 65.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Apr 23
|
Mostly Sunny
|
80°F |
10 to 20 mph
S
|
|
Thursday Night
Apr 23
|
Showers And Thunderstorms Likely
|
61°F |
15 to 20 mph
S
|
|
Friday
Apr 24
|
Showers And Thunderstorms Likely
|
73°F |
10 to 15 mph
SW
|
|
Friday Night
Apr 24
|
Chance Rain Showers
|
48°F |
10 mph
NW
|
|
Saturday
Apr 25
|
Slight Chance Rain Showers then Mostly Sunny
|
66°F |
10 mph
N
|
|
Saturday Night
Apr 25
|
Slight Chance Rain Showers
|
45°F |
5 to 10 mph
NNE
|
|
Sunday
Apr 26
|
Slight Chance Rain Showers then Mostly Sunny
|
65°F |
5 to 10 mph
NNE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Naperville.
