What is today's weather forecast for Sycamore, IL?

Today's forecast for Sycamore shows a high of 46 degrees and a low of 42 degrees Fahrenheit. Patchy drizzle and fog before 10am, then a chance of drizzle after 3pm.

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

The 7-day forecast for Sycamore shows highs from 42 to 56 degrees and lows from 29 to 42 degrees Fahrenheit. Expect precipitation on 2 days with chances of 20% or higher.

Will it rain in Sycamore, IL this week?

Yes, rain is possible in Sycamore this week. Precipitation chances: Monday (50% chance), Tuesday (50% chance).

How accurate is the Sycamore weather forecast?

WeatherForYou provides highly accurate Sycamore 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.

Sycamore, IL Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

Switch to Metric Units

42°F
Feels Like 41°F

Humidity 100% Dew Point 42°F Wind SSE 3 MPH Gusts 7 Barometer 30.09 in.764.3 mm

Solar Rad 11 w/m²

Report from a MADIS/MESONET weather station 0.7 miles S of central Sycamore
at 8:25 AM Thu, Nov 20, 2025

Point Forecast at a Glance

ThuNov 20

FriNov 21

SatNov 22

SunNov 23

MonNov 24

TueNov 25

50%

WedNov 26

7-Day Temperature Trend

Week Ahead Summary

Variable high temperatures through the week, ranging from 42°F to 56°F. Some rain possible with at least 3 days showing precipitation chances of 20% or higher.

Climate Context

This week's forecast shows temperatures running 3°F above the historical average for November. Normal highs for this period are around 47°F with lows around 30°F.

This Date in Weather History

1914 - The high temperature of 28 degrees at Atlanta, GA, was their earliest daily high below the freezing mark.

Sycamore, IL 7 Day Weather Forecast Details

Thursday Nov 20

Day: Patchy drizzle and fog before 10am, then a chance of drizzle after 3pm. Cloudy, with a high near 46. South southwest wind 5 to 10 mph.

Night: A chance of drizzle before 9pm. Cloudy, with a low around 42. South southwest wind around 5 mph becoming calm.

Friday Nov 21

Day: Mostly cloudy, with a high near 51. North wind around 5 mph, with gusts as high as 10 mph.

Night: Cloudy, then gradually becoming partly cloudy, with a low around 29. North northeast wind around 5 mph.

Saturday Nov 22

Day: Mostly sunny, with a high near 50. North northeast wind around 5 mph becoming south southwest in the afternoon. Winds could gust as high as 10 mph.

Night: Mostly clear, with a low around 36.

Sunday Nov 23

Day: Sunny, with a high near 56.

Night: Partly cloudy, with a low around 34.

Monday Nov 24

Day: Partly sunny, with a high near 53.

Night: A chance of rain. Mostly cloudy, with a low around 41.

Tuesday Nov 25

Day: A chance of rain. Mostly cloudy, with a high near 52.

Night: Mostly cloudy, with a low around 33.

Wednesday Nov 26

Day: Partly sunny, with a high near 42.

About Sycamore, IL

Sycamore is a city in DeKalb County, Illinois, United States. It has a commercial district based and centered on Illinois Route 64. The population was 18,577 at the 2020 census, up from 17,419 at the 2010 census. Sycamore is the county seat of DeKalb County and was named after the sycamore tree.

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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