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

Today's forecast for South Barrington shows a low of 21 degrees Fahrenheit. Mostly cloudy, with a low around 21.

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

The 7-day forecast for South Barrington shows highs from 8 to 41 degrees and lows from -5 to 32 degrees Fahrenheit. Expect precipitation on 4 days with chances of 20% or higher.

Will it rain in South Barrington, IL this week?

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

How accurate is the South Barrington weather forecast?

WeatherForYou provides highly accurate South Barrington 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 Barrington, IL Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

Switch to Metric Units

22°F
Feels Like 22°F

Humidity 82% Dew Point 17°F Wind Calm Barometer 30.06 in.

Report from a MADIS/MESONET weather station 0.3 mi. NNW of central South Barrington
at 1:15 AM Fri, Dec 12, 2025

Point Forecast at a Glance

ThuDec 11

FriDec 12

30%

SatDec 13

40%

-5

SunDec 14

-3

MonDec 15

TueDec 16

WedDec 17

Jump to detailed forecast ↓

7-Day Temperature Trend

Week Ahead Summary

High temperatures dip from 28°F to a low of 8°F mid-week, then warm to 41°F. Some precipitation possible, including both rain and snow.

Climate Context

This week's forecast shows temperatures running 10°F below the historical average for December. Normal highs for this period are around 36°F with lows around 21°F.

This Date in Weather History

1987 - Low pressure over southwestern Ontario, Canada, brought snow and gusty winds to the North Central U.S. Winds gusted to 62 mph at Riverton WY. Snow and high winds in eastern North Dakota reduced visibilities to less than one hundred feet at times. Warm weather prevailed across the Southern Plains Region. Half a dozen cities reported record high temperatures for the date, including Del Rio TX with a reading of 89 degrees. Laredo TX and Kingsville TX tied for honors as hot spot in the nation with afternoon highs of 92 degrees.

South Barrington, IL 7 Day Weather Forecast Details

Thursday Dec 11

Night: Mostly cloudy, with a low around 21. Calm wind becoming north northwest around 5 mph.

Friday Dec 12

Day: A 30 percent chance of snow, mainly between 9am and 3pm. Partly sunny, with a high near 28. North northwest wind 5 to 10 mph becoming west southwest in the morning. Winds could gust as high as 15 mph.

Night: A 20 percent chance of snow showers before midnight. Mostly cloudy, with a low around 4. Wind chill values as low as -12. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

Saturday Dec 13

Day: A 40 percent chance of snow. Mostly cloudy and cold, with a high near 10. Wind chill values as low as -13. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.

Night: Mostly clear, with a low around -5. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.

Sunday Dec 14

Day: Sunny and cold, with a high near 8.

Night: Partly cloudy, with a low around -3.

Monday Dec 15

Day: Partly sunny, with a high near 21.

Night: Mostly cloudy, with a low around 14.

Tuesday Dec 16

Day: Partly sunny, with a high near 35.

Night: Mostly cloudy, with a low around 29.

Wednesday Dec 17

Day: Mostly cloudy, with a high near 41.

Night: A chance of rain. Mostly cloudy, with a low around 32.

Thursday Dec 18

Day: A chance of rain. Partly sunny, with a high near 39.

About South Barrington, IL

South Barrington is a residential suburb in Cook County, Illinois, United States, south of Barrington. Per the 2020 census, the population was 5,077. It is the location of the famous megachurch Willow Creek Community Church, a lifestyle center (shopping center) named The Arboretum of South Barrington, and Goebbert’s Farm & Garden Center, a long-running family-owned agritourism site known for its annual fall pumpkin festival.

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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