Naperville, Illinois Weather
Day 50 of autumn. Read today’s microseason across nine climate regions →
Naperville weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 2:05 PM CST · Open-Meteo
- TodayNov 10Clear——63°39°—
- WednesdayNov 11Overcast45%—56°39°-7°
- ThursdayNov 12Overcast——44°34°-12°
- FridayNov 13Overcast——41°31°-3°
- SaturdayNov 14Clear——45°30°+4°
- SundayNov 15Partly Cloudy——47°34°+2°
- MondayNov 16Overcast——48°40°+1°
Air quality now AQI 35 · Good
AQI 35 (Good), driven by PM2.5. AQI projected to climb to 57 over the next 6 hours. PM2.5 at 7.9 µg/m³ (AQI 44) with a 0.96 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in stagnant air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM2.5 at 7.9 µg/m³ (AQI 44) with a 0.96 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in stagnant air, not road dust.
- PM2.5/PM10
- 0.96
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
When the wind is in the west, the weather is at its best.
- Moonrise
- 8:19 AM
- Moonset
- 5:11 PM
- In sign
- ♐︎ Sagittarius
Naperville at a glance
- Today vs. normal: Today averages 51°F (high 63°F, low 39°F), 9°F above the 42°F normal for Nov 10
- Last frost: April 28 (1991–2020 median, NOAA station 11 km away)
- Microseason: Nov 6–10
- Planting calendar: November — harvest fall brassicas, carrots
16-Day Forecast — Naperville
- Tue63°39°0%
- Wed56°39°45%
- Thu44°34°5%
- Fri41°31°0%
- Sat45°30°1%
- Sun47°34°3%
- Mon48°40°4%
- Tue48°37°2%
- Wed51°36°4%
- Thu49°41°12%
- Fri58°46°16%
- Sat59°49°42%
- Sun57°29°36%
- Mon31°24°25%
- Tue27°21°23%
- Wed37°26°13%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Naperville
Interactive wind and temperature map centered on Naperville — it loads in your browser. Open the full weather map.
Right now in the garden
Post-frost dormancy
As of November 10, the season's first frost (typically October 16) is due or past. Bring frost-tender plants indoors, mulch overwintering beds, and turn spent plantings under. This city's planting calendar for November: harvest fall brassicas and carrots.
SPC Convective Outlook
Storm Prediction Center — Naperville
SPC includes Naperville in the general thunderstorm area tomorrow — no severe risk, but storms are possible.
- TODAYNONENo severe risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook.
Sun & seasons in Naperville
Naperville sits in DuPage County, where the year’s longest day runs 15h 13m of daylight and its shortest just 9h 8m — a swing of +6h 4m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Chicago, the state’s largest city, lies about 25 miles to the ENE. The nearest town Naperville tracks is Aurora, roughly 6 miles to the W.
Air quality in Naperville
Air quality in Naperville’s county has held roughly steady since 2020; its cleanest year on record was 2025 (median AQI 42). See the full air-quality history for Naperville.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, spinach, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes |
| July | tomatoes, peppers, beans, squash, fall brassicas, carrots | lettuce, peas, spinach, beans, summer squash, garlic |
| August | beans, squash, fall brassicas, carrots | tomatoes, peppers, beans, summer squash, garlic |
| September | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash |
| October | — | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
| November | — | fall brassicas, carrots |
A year in weather
Naperville peaks at about 76°F in July and bottoms near 23°F in January; May brings the heaviest rain (4.3 inches) and January the least (1.7 inches).
| Month | Mean temp | Precip |
|---|---|---|
| January | 23° | 1.7″ |
| February | 26° | 1.9″ |
| March | 37° | 2.9″ |
| April | 50° | 3.8″ |
| May | 59° | 4.3″ |
| June | 70° | 4.0″ |
| July | 76° | 2.9″ |
| August | 75° | 3.1″ |
| September | 67° | 3.1″ |
| October | 55° | 2.9″ |
| November | 40° | 3.0″ |
| December | 27° | 2.2″ |
Regional context
Similar climates Lisle, IL, Warrenville, IL, Bolingbrook, IL
Per modelled 1991-2020 normals (EC_Earth3P_HR model via Open-Meteo), Naperville runs from a 23°F January mean to 76°F in July, a 53°F seasonal spread, with near 35.8 inches of precipitation.
Precipitation in Naperville runs summer-dominant: May averages 4.3 inches from warm-season storms, while January drops to 1.7 inches under drier cool air. That puts Naperville in a summer-convective cohort with places like Lisle, IL, Warrenville, IL and Bolingbrook, IL.
Around April 28, Naperville sheds its freezing nights — kale, peas, spinach, and parsnips go into Naperville's beds. Heat-demanding starts go out a fortnight on in Naperville, after the soil warms and cold snaps clear. The season ends by October 16 in Naperville, once hard frosts set back in. That date is a median: Naperville freezes sooner in half of years.
Similar climates: Lisle, IL, Warrenville, IL, Bolingbrook, IL, Woodridge, IL, Aurora, IL.
Frequently asked
- When does it freeze in Naperville?
- Naperville's last spring frost lands near April 28, and in Naperville the first fall frost follows around October 16.
- What is the rainy season in Naperville?
- Naperville sees its heaviest rain in May (around 4.3 inches), part of roughly 36 inches a year.
- What is the warmest month in Naperville?
- Naperville peaks in July, when the mean runs near 76°F.
- What is the coldest month in Naperville?
- January is Naperville's coldest month, averaging about 23°F.
- When can I start a vegetable garden in Naperville?
- Around April 28, start frost-hardy crops in Naperville; tomatoes and basil belong a fortnight later.
- What hardiness zone is Naperville?
- Since January in Naperville averages 23°F, Naperville's USDA zone follows that floor — confirm it by ZIP.
- What is the 10-day forecast for Naperville?
- Naperville's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Naperville?
- See this week's day-by-day rain chances for Naperville in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Naperville?
- Current conditions for Naperville and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Naperville forecast updated?
- The Naperville forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Naperville?
- Today's sunrise and sunset times for Naperville are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Naperville?
- The next few days in Naperville's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Naperville sits at 41.7°N; its climate zone is warm-summer humid continental (Köppen approximation).
ZIP codes in Naperville
- 60540
- 60563
- 60564
- 60565
- 60567