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South Beloit, Illinois Weather Forecast
South Beloit, Illinois Weather
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Weather Forecast for South Beloit, Illinois : Winnebago County
Issued: 5:11 am CST Nov 5, 2025 Latitude: 42.4930708 Longitude: -89.0367764 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Thursday Friday Saturday Sunday Monday Veterans Day
Clearing on Today Mostly Clear on Tonight Increasing Clouds on Thursday 20% chance of rain on Friday 50% chance of rain on Saturday Mostly Sunny on Sunday Sunny on Monday Partly Sunny on Veterans Day
High: 57°F Low: 29°F High: 55°F High: 61°F High: 46°F High: 35°F High: 36°F High: 42°F
Low: 45°F Low: 32°F Low: 26°F Low: 19°F Low: 19°F  
Clearing Mostly Clear Increasing Clouds Rain Rain Mostly Sunny Sunny Partly Sunny
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Current Conditions at
JANESVILLE - (KJVL)
46°
Clear
as of 4:55 AM CST
Rel. Humidity: 87%
Dew Point: 43°F
Visibility: 10 Miles
Pressure: 29.80 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
ROCKFORD - (KRFD)
50°
Mostly Cloudy
as of 4:54 AM CST
Rel. Humidity: 81%
Dew Point: 45°F
Visibility: 10 Miles
Pressure: 29.84 in.
Flight Rule: VFR
Wind Data
5 MPH
220° Southwest
Cloud Level(s): Broken at 25000ft
Current Conditions at
MONROE - (KEFT)
46°
Feels like 41°F
Clear
as of 4:55 AM CST
Rel. Humidity: 93%
Dew Point: 45°F
Visibility: 10 Miles
Pressure: 29.81 in.
Flight Rule: VFR
Wind Data
12 MPH
250° West
Cloud Level(s): Clear
Clearing on Today Today... Mostly cloudy through mid morning, then gradual clearing, with a high near 57. Breezy, with a west wind 5 to 10 mph becoming northwest 15 to 20 mph in the morning. Winds could gust as high as 35 mph.

Mostly Clear on Tonight Tonight... Mostly clear, with a low around 29. West northwest wind 5 to 10 mph becoming light and variable after midnight.

Increasing Clouds on Thursday Thursday... Increasing clouds, with a high near 55. Light south wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 20 mph.

70% chance of rain Thursday Night Thursday Night... Showers likely, mainly after midnight. Cloudy, with a low around 45. South southeast wind 10 to 15 mph becoming southwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 70%.

20% chance of rain Friday Friday... A 20 percent chance of showers before noon. Mostly sunny, with a high near 61. West wind 10 to 15 mph, with gusts as high as 25 mph.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 32.

50% chance of rain Saturday Saturday... A 50 percent chance of rain after noon. Partly sunny, with a high near 46.

70% chance of rain & snow Saturday Night Saturday Night... Rain likely, possibly mixed with snow, mainly before midnight. Mostly cloudy, with a low around 26.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 35.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 19.

Sunny on Monday Monday... Sunny, with a high near 36.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 19.

Partly Sunny on Veterans Day Veterans Day... Partly sunny, with a high near 42.

Sun Almanac for South Beloit, Illinois
Sunrise: 06:35 AM
Sunset: 4:44 PM
Civil Sunrise:06:06 AM
Civil Sunset: 5:14 PM
Nautical Sunrise: 05:32 AM
Nautical Sunset: 5:47 PM
Astro Sunrise: 05:00 AM
Astro Sunset: 6:20 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.