What is today's weather forecast for South Beloit, IL?

Today's forecast for South Beloit shows a low of -2 degrees Fahrenheit. Mostly clear, with a low around -2.

What is the 7-day weather forecast for South Beloit, IL?

The 7-day forecast for South Beloit shows highs from 11 to 31 degrees and lows from -2 to 18 degrees Fahrenheit. Expect precipitation on 5 days with chances of 20% or higher.

Will it rain in South Beloit, IL this week?

Yes, rain is possible in South Beloit this week. Precipitation chances: Friday (30% chance), Saturday (40% chance), Monday (50% chance), Tuesday (50% chance), Wednesday (50% chance).

How accurate is the South Beloit weather forecast?

WeatherForYou provides highly accurate South Beloit forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

South Beloit, IL Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

Switch to Metric Units

6°F
Feels Like 6°F

Humidity 91% Dew Point 4°F Wind WNW 1 MPH Gusts 1 Barometer 30.05 in.

Report from a personal weather station 2.6 mi. SSW of central South Beloit
at 2:15 AM Thu, Dec 4, 2025

Point Forecast at a Glance

WedDec 3

-2

ThuDec 4

FriDec 5

SatDec 6

SunDec 7

-1

MonDec 8

TueDec 9

7-Day Temperature Trend

Week Ahead Summary

High temperatures climb from 11°F to a high of 31°F by week's end. Unsettled weather expected with snow likely on at least 4 days.

Climate Context

This week's forecast shows temperatures running 10°F below the historical average for December. Normal highs for this period are around 33°F with lows around 18°F.

This Date in Weather History

1982 - The temperature in New York City's Central Park reached 72 degrees to establish a record high for December. The month as a whole was also the warmest of record.

South Beloit, IL 7 Day Weather Forecast Details

Wednesday Dec 3

Night: Mostly clear, with a low around -2. Wind chill values as low as -11. Northwest wind around 5 mph, with gusts as high as 10 mph.

Thursday Dec 4

Day: Sunny, with a high near 11. Wind chill values as low as -12. North northwest wind around 5 mph becoming calm.

Night: Partly cloudy, with a temperature falling to near -3 by 8pm, then rising to around 6 during the remainder of the night. Wind chill values as low as -16. South wind 5 to 10 mph, with gusts as high as 15 mph.

Friday Dec 5

Day: Partly sunny, with a high near 27. Wind chill values as low as -5. South southwest wind around 10 mph, with gusts as high as 15 mph.

Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 18. South southwest wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 15 mph.

Saturday Dec 6

Day: Partly sunny, with a high near 26.

Night: A 40 percent chance of snow. Mostly cloudy, with a low around 8.

Sunday Dec 7

Day: Mostly sunny, with a high near 18.

Night: Mostly cloudy, with a low around -1.

Monday Dec 8

Day: Mostly cloudy, with a high near 20.

Night: Snow likely. Mostly cloudy, with a low around 12.

Tuesday Dec 9

Day: Mostly cloudy, with a high near 31.

Night: A chance of snow. Mostly cloudy, with a low around 17.

Wednesday Dec 10

Day: A chance of snow. Mostly cloudy, with a high near 31.

About South Beloit, IL

South Beloit is a city in Winnebago County, Illinois, United States. It is a suburban extension of Beloit, Wisconsin, located along the Illinois–Wisconsin border within the Rockford metropolitan area. The population was 7,989 at the 2020 census.

Content from Wikipedia, licensed under CC BY-SA 3.0.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.

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