No Watches or Warnings for Frontenac
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Weather Conditions for Frontenac, Illinois : DuPage County
Issued: 1:46 am CDT Sep 7, 2026 Latitude: 41.7447517 Longitude: -88.2328464 View on Google Maps

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Overnight Labor Day Tuesday Wednesday Thursday Friday Saturday Sunday
Cloudy on Overnight Mostly Sunny on Labor Day Partly Sunny on Tuesday 80% chance of thunderstorms on Wednesday Mostly Sunny on Thursday Sunny on Friday Mostly Sunny on Saturday 20% chance of rain on Sunday
Low: 63°F High: 81°F High: 86°F High: 83°F High: 79°F High: 81°F High: 85°F High: 81°F
Low: 62°F Low: 71°F Low: 61°F Low: 57°F Low: 63°F Low: 64°F  
Cloudy Mostly Sunny Partly Sunny Thunderstorms Mostly Sunny Sunny Mostly Sunny Rain
Current Conditions at
ROMEOVILLE WFO - (KLOT)
68°
Clear
as of 8:50 AM CDST
Rel. Humidity: 64%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 30.05 in.
Flight Rule: VFR
Wind Data
3 MPH
020° North
Cloud Level(s): Clear
Current Conditions at
WEST CHICAGO - (KDPA)
64°
Mostly Clear
as of 8:52 AM CDST
Rel. Humidity: 67%
Dew Point: 54°F
Visibility: 10 Miles
Pressure: 30.06 in.
Flight Rule: VFR
Wind Data
8 MPH
0° North
Cloud Level(s): Few at 15000ft
Current Conditions at
AURORA - (KARR)
63°
Clear
as of 8:52 AM CDST
Rel. Humidity: 77%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 30.06 in.
Flight Rule: VFR
Wind Data
8 MPH
350° North
Cloud Level(s): Clear
Cloudy on Overnight Overnight... Partly cloudy, with a steady temperature around 63. East wind around 5 mph.

Mostly Sunny on Labor Day Labor Day... Mostly sunny, with a high near 81. East southeast wind around 5 mph, with gusts as high as 10 mph.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 62. East southeast wind around 5 mph.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 86. South wind 5 to 10 mph, with gusts as high as 15 mph.

40% chance of thunderstorms Tuesday Night Tuesday Night... A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 71. South wind around 10 mph, with gusts as high as 15 mph.

80% chance of thunderstorms Wednesday Wednesday... Showers and possibly a thunderstorm before 1pm, then a slight chance of showers and thunderstorms after 1pm. High near 83. Chance of precipitation is 80%.

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 61.

Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 79.

Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 57.

Sunny on Friday Friday... Sunny, with a high near 81.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 63.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 85.

Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 64.

20% chance of rain Sunday Sunday... A chance of showers. Mostly sunny, with a high near 81.

Illinois' Warnings, Watches, and AdvisoriesIllinois' Watches, Warnings, and Advisories

Sun Almanac for Frontenac, Illinois
Astronomical Sunrise 04:56 AM?Astronomical sunrise occurs when the Sun is 18° below the horizon and the sky begins to brighten from a completly darkened state.
Nautical Sunrise 05:30 AM?Nautical sunrise (or nautical dawn) is the precise moment when the sun's center is 12° below the horizon in the morning. It marks the beginning of nautical twilight, allowing pilots/mariners to see the horizon.
Civil Sunrise 06:03 AM?Civil sunrise is the moment in the morning when the sun's center is 6° below the horizon. It marks the start of morning civil twilight, providing enough natural light for most, outdoor activities without artificial lighting. It typically occurs roughly 20-30 minutes before actual sunrise.
Sunrise 06:31 AM?Sunrise (or sunup) is the moment when the upper rim of the Sun appears on the horizon in the morning. It marks the end of the twilight phase, often accompanied by distinct atmospheric colors.

Daylight: 12 Hours 35 Minutes?Daylight hours are the period of time between local sunrise and sunset, representing the daily portion of sunlight. These hours change in length based on season, Earth's tilt, and latitude.

Sunset 7:06 PM?The sunset is defined in astronomy as the moment the upper limb of the Sun disappears below the horizon. It marks the end of daylight and is often accompanied by distinct atmospheric colors. It also signals the beginning of twilight.
Civil Sunset 7:34 PM?Civil sunset (or evening civil twilight) occurs when the center of the sun is 6° below the horizon, marking the end of the brightest twilight phase. It typically occurs roughly 20-30 minutes after sunset, providing enough light for most outdoor activities to continue without artificial light.
Nautical Sunset 8:07 PM?Nautical sunset occurs when the sun's center is 12° below the horizon, marking the end of nautical twilight. This phase, following civil twilight, allows the horizon to remain visible, enabling mariners to take accurate star sights for navigation. The sky is dark, but some ambient light remains
Astronomical Sunset 8:41 PM?Astronomical sunrise occurs when the Sun drops to 18° below the horizon. This causes the sky to enter a completly darkened state.

Civil Rise to Set: 13 Hours 31 Minutes
Nautical Rise to Set: 14 Hours 37 Minutes
Astro Rise to Set: 15 Hours 45 Minutes

Click for yearly Sun Almanac for Frontenac
Moon Almanac for Frontenac, Illinois
Moon Phase: Waxing Crescent
Moon Illumination: 7%
Moon Age: 2.52 Days
Moon is currently above the horizon
Distance from Moon to Earth: 243,093 miles
Upcoming Lunar Events for
Frontenac:
Next EventEvent TimeIllum

High Moon:02:45 pm Sun7.9%
Moonset:08:00 pm Sun9.1%
Moonrise:10:27 am Mon13.0%
High Moon:03:31 pm Mon14.5%
Moonset:08:26 pm Mon16.0%
New Moon: Thu Sep 10
First Quarter: Fri Sep 18
Full Moon: Sat Sep 26
Last Quarter: Sat Oct 3
New Moon: Sat Oct 10
Click for Monthly Moon Almanac