No Watches or Warnings for Rio
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Weather Conditions for Rio, Illinois : Knox County
Issued: 8:56 am CDT Sep 11, 2026 Latitude: 41.1092036 Longitude: -90.399851 View on Google Maps

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Today Tonight Saturday Sunday Monday Tuesday Wednesday Thursday
Mostly Sunny on Today Mostly Clear on Tonight Mostly Sunny on Saturday Mostly Sunny on Sunday 40% chance of rain on Monday 50% chance of  on Tuesday Rain on Wednesday 20% chance of  on Thursday
High: 81°F Low: 64°F High: 85°F High: 79°F High: 84°F High: 80°F High: 79°F High: 80°F
Low: 60°F Low: 60°F Low: 67°F Low: 60°F Low: 62°F  
Mostly Sunny Mostly Clear Mostly Sunny Mostly Sunny Rain Partly Sunny Rain Partly Sunny
Current Conditions at
GALESBURG - (KGBG)
73°
Mostly Cloudy
as of 10:55 AM CDST
Rel. Humidity: 83%
Dew Point: 68°F
Visibility: 10 Miles
Pressure: 30.03 in.
Flight Rule: MVFR
Wind Data
7 MPH
130° Southeast
Cloud Level(s): Broken at 1400ft, Broken at 2200ft
Current Conditions at
MOLINE - (KMLI)
75°
Mostly Cloudy
as of 10:52 AM CDST
Rel. Humidity: 69%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: MVFR
Wind Data
9 MPH
140° Southeast
Cloud Level(s): Broken at 1800ft
Current Conditions at
DAVENPORT - (KDVN)
75°
Mostly Cloudy
as of 10:52 AM CDST
Rel. Humidity: 69%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
10 MPH
130° Southeast
Cloud Level(s): Scattered at 1500ft, Scattered at 2200ft, Broken at 3100ft
Current Conditions at
MACOMB MUNICIPAL AIRPORT - (KMQB)
72°
Cloudy
as of 10:55 AM CDST
Rel. Humidity: 100%
Dew Point: 72°F
Visibility: 10 Miles
Pressure: 30.03 in.
Flight Rule: MVFR
Wind Data
7 MPH
130° Southeast
Cloud Level(s): Solid Overcast at 1000ft
Mostly Sunny on Today Today... Mostly sunny, with a high near 81. South wind around 8 mph.

Mostly Clear on Tonight Tonight... Mostly clear, with a low around 64. South southeast wind around 5 mph.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 85. South southwest wind 5 to 9 mph becoming west in the afternoon. Winds could gust as high as 15 mph.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 60. North wind around 6 mph.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 79. Northeast wind 6 to 8 mph.

30% chance of rain Sunday Night Sunday Night... A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 60. East northeast wind 8 to 13 mph, with gusts as high as 21 mph.

40% chance of rain Monday Monday... A 40 percent chance of showers before 1pm. Mostly sunny, with a high near 84. East southeast wind 15 to 18 mph, with gusts as high as 29 mph.

50% chance of rain Monday Night Monday Night... A 50 percent chance of showers after 1am. Partly cloudy, with a low around 67. Breezy.

50% chance of  Tuesday Tuesday... A 50 percent chance of showers. Partly sunny, with a high near 80.

70% chance of rain Tuesday Night Tuesday Night... Showers likely. Mostly cloudy, with a low around 60. Chance of precipitation is 70%.

Rain on Wednesday Wednesday... Showers likely. Mostly cloudy, with a high near 79.

Rain on Wednesday Night Wednesday Night... Showers likely. Mostly cloudy, with a low around 62.

20% chance of  Thursday Thursday... A chance of showers. Partly sunny, with a high near 80.

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

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Sun Almanac for Rio, Illinois
Astronomical Sunrise 05:04 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 05:38 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 40 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 7:18 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 7:46 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 8:18 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 8:52 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 35 Minutes
Nautical Rise to Set: 14 Hours 40 Minutes
Astro Rise to Set: 15 Hours 48 Minutes

Click for yearly Sun Almanac for Rio
Moon Almanac for Rio, Illinois
Moon Phase: New Moon
Moon Illumination: 0%
Moon Age: 0.57 Days
Moon is currently above the horizon
Distance from Moon to Earth: 237,343 miles
Upcoming Lunar Events for
Rio:
Next EventEvent TimeIllum

High Moon:01:23 pm Fri0.4%
Moonset:07:25 pm Fri0.8%
Moonrise:08:19 am Sat2.2%
High Moon:02:08 pm Sat3.1%
Moonset:07:47 pm Sat4.0%
New Moon: Wed Aug 12
First Quarter: Wed Aug 19
Full Moon: Fri Aug 28
Last Quarter: Fri Sep 4
New Moon: Thu Sep 10
Click for Monthly Moon Almanac