No Watches or Warnings for Niantic
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Weather Conditions for Niantic, Illinois : Macon County
Issued: 1:26 am CDT Sep 15, 2026 Latitude: 39.8539297 Longitude: -89.1661942 View on Google Maps

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Overnight Tuesday Wednesday Thursday Friday Saturday Sunday Monday
Mostly Clear on Overnight 50% chance of thunderstorms on Tuesday 40% chance of  on Wednesday Mostly Sunny on Thursday 30% chance of thunderstorms on Friday Mostly Sunny on Saturday 20% chance of  on Sunday Partly Sunny on Monday
Low: 67°F High: 94°F High: 91°F High: 93°F High: 90°F High: 91°F High: 81°F High: 76°F
Low: 69°F Low: 71°F Low: 68°F Low: 69°F Low: 67°F Low: 59°F  
Mostly Clear Thunderstorms Partly Sunny Mostly Sunny Thunderstorms Mostly Sunny Partly Sunny Partly Sunny
Current Conditions at
DECATUR - (KDEC)
68°
Clear
as of 12:54 AM CDST
Rel. Humidity: 64%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 30.06 in.
Flight Rule: VFR
Wind Data
8 MPH
160° South
Cloud Level(s): Clear
Current Conditions at
LOGAN COUNTY AIRPORT - (KAAA)
68°
Clear
as of 1:35 AM CDST
Rel. Humidity: 68%
Dew Point: 57°F
Visibility: 10 Miles
Pressure: 30.03 in.
Flight Rule: VFR
Wind Data
6 MPH
160° South
Cloud Level(s): Clear
Current Conditions at
BLOOMINGTON - (KBMI)
66°
Clear
as of 12:56 AM CDST
Rel. Humidity: 68%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 30.05 in.
Flight Rule: VFR
Wind Data
13 MPH
160° South
Cloud Level(s): Clear
Mostly Clear on Overnight Overnight... Mostly clear, with a low around 67. South southeast wind around 15 mph, with gusts as high as 21 mph.

50% chance of thunderstorms Tuesday Tuesday... A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 94. Heat index values as high as 102. South wind 9 to 14 mph becoming west in the afternoon. Winds could gust as high as 21 mph.

50% chance of thunderstorms Tuesday Night Tuesday Night... A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. South wind around 5 mph becoming light and variable.

40% chance of  Wednesday Wednesday... A 40 percent chance of showers before 10am. Partly sunny, with a high near 91. East northeast wind around 6 mph becoming south southwest in the afternoon.

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 71. Light and variable wind becoming south around 6 mph in the evening.

Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 93. South southwest wind around 7 mph becoming northwest in the afternoon.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 68. North wind around 6 mph becoming east northeast after midnight.

30% chance of thunderstorms Friday Friday... A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 69.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 91.

20% chance of rain Saturday Night Saturday Night... A chance of showers. Mostly cloudy, with a low around 67.

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

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 59.

Partly Sunny on Monday Monday... Partly sunny, with a high near 76.

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

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Sun Almanac for Niantic, Illinois
Astronomical Sunrise 05:06 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 05:39 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 06:11 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 06:38 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 28 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 7:33 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 8:05 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 8:37 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 22 Minutes
Nautical Rise to Set: 14 Hours 26 Minutes
Astro Rise to Set: 15 Hours 31 Minutes

Click for yearly Sun Almanac for Niantic
Moon Almanac for Niantic, Illinois
Moon Phase: Waxing Crescent
Moon Illumination: 18%
Moon Age: 4.15 Days
Moon is currently below the horizon
Distance from Moon to Earth: 247,410 miles
Upcoming Lunar Events for
Niantic:
Next EventEvent TimeIllum

Moonrise:11:32 am Tue20.9%
High Moon:04:22 pm Tue22.5%
Moonset:09:06 pm Tue24.2%
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