Naperville, Illinois weather

United States · America/Chicago · 41.75, -88.15

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Naperville, Illinois hourly forecast

Every hour our forecast source publishes for Naperville, Illinois — 48 hours ahead, free, with no account and no subscription. Temperature, feels like, rain chance and amount, wind and gusts, humidity, cloud cover.

Today at a glance

Warmest hour: 3 PM at 55°F
Coolest hour: 11 PM at 46°F
Strongest wind: 4 PM near 17 mph
No hour on this day has a rain chance above 50%.

Source updated: 8:12:30 PM · WeatherSignal checked: 8:12:30 PM

Source: Open-Meteo (national weather-service models)

Hour by hour

All times shown in America/Chicago. Pick a day to see its hours.

Hourly weather forecast for Naperville, Illinois
Time	Condition	Temp	Feels	Precip %	Amount	Wind	Humidity	Cloud
3 PM	Mainly clear	55°	51°	0%	0.00″	16 mph NNW	63%	33%
4 PM	Partly cloudy	55°	50°	0%	0.00″	17 mph N	62%	41%
5 PM	Mainly clear	54°	49°	0%	0.00″	16 mph N	60%	21%
6 PM	Mainly clear	52°	47°	0%	0.00″	14 mph N	62%	19%
7 PM	Clear sky	50°	45°	0%	0.00″	13 mph N	63%	9%
8 PM	Clear sky	49°	44°	0%	0.00″	13 mph N	63%	2%
9 PM	Clear sky	48°	42°	0%	0.00″	14 mph N	63%	3%
10 PM	Clear sky	47°	41°	0%	0.00″	12 mph N	65%	2%
11 PM	Clear sky	46°	40°	0%	0.00″	12 mph NNW	66%	1%

What this forecast is built from

Source: MET Norway Locationforecast (backup source)
How far it goes: 48 hours (2.0 days), one value per 60 minutes
The primary forecast source was unavailable, so this location is running on the backup source, which publishes a shorter hourly horizon.
Columns are hidden when the source does not publish that measurement for this location, rather than showing an invented number.

Hourly timing is the least certain part of any forecast, and days six through eight are far less certain than tomorrow. Rain can arrive earlier or later than the hour shown. Official warnings always take precedence.

Planning your week in Naperville, Illinois

The warmest afternoon ahead is Thursday, reaching about 67°F.
The coldest night ahead dips to about 37°F.
This is a dry stretch — most days show rain chances under 20%, good for outdoor plans.
The breeziest day looks like today, with sustained wind near 17 mph.

Common questions about Naperville, Illinois weather

How accurate is the Naperville, Illinois forecast?: The next 48 hours are usually reliable on temperature and sky cover, with timing that can shift by an hour or two. Days three and four are dependable for the overall pattern. Beyond that, treat the numbers as a planning direction rather than a promise — we label confidence on every day so you can judge for yourself.
When will it rain in Naperville, Illinois?: No day in the current outlook has a rain chance above 40%, so conditions look favorable for outdoor plans across the week.
Where does this forecast come from?: Forecast values come from national weather model data, and official warnings come from the National Weather Service. We show the source and the last-updated time on every page, and we never invent a number the source did not publish — missing measurements are hidden, not guessed.
How often is this page updated?: The forecast refreshes whenever the source model publishes new data, typically several times a day. The freshness note near the top of the page shows exactly when the numbers you are looking at were issued.

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