Aurora, Illinois Weather
Day 93 of summer. Read today’s microseason across nine climate regions →
Aurora weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 9:20 AM CDT · Open-Meteo
- TodaySep 21Overcast12%—62°59°—
- TuesdaySep 22Clear11%—60°53°-2°
- WednesdaySep 23Overcast——63°54°+3°
- ThursdaySep 24Overcast——70°56°+7°
- FridaySep 25Overcast——62°59°-8°
- SaturdaySep 26Drizzle—0.14″59°54°-3°
- SundaySep 27Overcast13%—73°55°+14°
Air quality now AQI 30 · Good
AQI 30 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 5.2 µg/m³, PM10 at 5.2 µg/m³ — typical background levels with no transport signature.
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 5.2 µg/m³, PM10 at 5.2 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 1.00
- Wind
- breezy
- Recent rain
- 0h in last 6h
- Pattern
- background
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).
September dries up ditches or breaks down bridges.
- Moonrise
- 4:31 PM
- Moonset
- 1:08 AM
- In sign
- ♑︎ Capricorn
Aurora at a glance
- Today vs. normal: Today averages 61°F (high 62°F, low 59°F), 4°F below the 65°F normal for Sep 21
- Last frost: April 19 (1991–2020 median, NOAA station 2 km away)
- Microseason: Sep 21–25
- Planting calendar: September — plant garlic (overwinter); harvest tomatoes, peppers, beans, summer squash, winter squash
16-Day Forecast — Aurora
- Mon62°59°12%
- Tue60°53°11%
- Wed63°54°2%
- Thu70°56°0%
- Fri62°59°0%
- Sat59°54°4%
- Sun73°55°13%
- Mon76°58°10%
- Tue70°60°24%
- Wed71°52°27%
- Thu65°53°11%
- Fri59°53°13%
- Sat77°57°23%
- Sun62°49°16%
- Mon54°41°16%
- Tue58°38°16%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Aurora
Interactive wind and temperature map centered on Aurora — it loads in your browser. Open the full weather map.
Right now in the garden
Fall planting + final harvests
As of September 21, the season's first frost (typically October 23) is approaching. Pick what frost-tender plants still carry before the next cold front. This city's planting calendar for September: plant garlic (overwinter); harvest tomatoes, peppers, beans, summer squash, and winter squash.
Sun & seasons in Aurora
Aurora sits in Kane County, where the year’s longest day runs 15h 13m of daylight and its shortest just 9h 8m — a swing of +6h 5m 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 32 miles to the E. The nearest town Aurora tracks is Naperville, roughly 6 miles to the E.
Air quality in Aurora
Air quality in Aurora’s county has held roughly steady since 2020; its cleanest year on record was 2020 (median AQI 42). See the full air-quality history for Aurora.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| March | lettuce, peas, spinach, radishes | — |
| April | lettuce, peas, spinach, radishes | radishes |
| May | tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes |
| July | tomatoes, peppers, beans, squash | lettuce, peas, beans, summer squash, garlic |
| August | beans, squash, fall brassicas, carrots | tomatoes, peppers, beans, summer squash |
| September | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash |
| October | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
| November | — | fall brassicas, carrots |
A year in weather
Aurora's warmest month is July (~76°F mean) and its coldest is January (~23°F). Rainfall peaks in May (4.3 inches) and bottoms out in January (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 North Aurora, IL, Boulder Hill, IL, Montgomery, IL
Per modelled 1991-2020 normals (EC_Earth3P_HR model via Open-Meteo), Aurora 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 Aurora runs summer-dominant: May averages 4.3 inches from warm-season storms, while January drops to 1.7 inches under drier cool air. Aurora shares that warm-season-wet pattern with places like North Aurora, IL, Boulder Hill, IL and Montgomery, IL.
Around April 19, Aurora sheds its freezing nights — kale, peas, spinach, and parsnips go into Aurora's beds. Heat-demanding starts go out a fortnight on in Aurora, after the soil warms and cold snaps clear. By October 23, frost is back in Aurora — protect or harvest anything tender. Open lawns in Aurora whiten first when frost returns.
Similar climates: North Aurora, IL, Boulder Hill, IL, Montgomery, IL, Batavia, IL, Oswego, IL.
Frequently asked
- When does it freeze in Aurora?
- Aurora's last spring frost lands near April 19, and in Aurora the first fall frost follows around October 23.
- What is the rainy season in Aurora?
- May is the wettest month in Aurora, about 4.3 inches on average; the year totals roughly 36 inches.
- What is the warmest month in Aurora?
- Aurora peaks in July, when the mean runs near 76°F.
- What is the coldest month in Aurora?
- January is Aurora's coldest month, averaging about 23°F.
- When can I start a vegetable garden in Aurora?
- Around April 19, start frost-hardy crops in Aurora; tomatoes and basil belong a fortnight later.
- What hardiness zone is Aurora?
- Since January in Aurora averages 23°F, Aurora's USDA zone follows that floor — confirm it by ZIP.
- What is the 10-day forecast for Aurora?
- Aurora'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 Aurora?
- See this week's day-by-day rain chances for Aurora in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Aurora?
- Current conditions for Aurora and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Aurora forecast updated?
- The Aurora forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Aurora?
- Today's sunrise and sunset times for Aurora 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 Aurora?
- The next few days in Aurora's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Aurora sits at 41.8°N; its climate zone is warm-summer humid continental (Köppen approximation).
ZIP codes in Aurora
- 60502
- 60503
- 60504
- 60505
- 60506
- 60507
- 60519
- 60568
- 60569
- 60572
- 60598
- 60599