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

Today's forecast for Marion shows a low of 52 degrees Fahrenheit. Rain, mainly after 11pm.

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

The 7-day forecast for Marion shows highs from 42 to 64 degrees and lows from 21 to 52 degrees Fahrenheit. Expect precipitation on 6 days with chances of 20% or higher.

Will it rain in Marion, IL this week?

Yes, rain is possible in Marion this week. Precipitation chances: Monday (90% chance), Tuesday (20% chance), Friday (50% chance), Saturday (50% chance), Sunday (50% chance), Monday (50% chance).

How accurate is the Marion weather forecast?

WeatherForYou provides highly accurate Marion 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.

Marion, IL Weather Forecast and Current Conditions

Current Conditions From Nearby Station

Switch to Metric Units

52°F
Feels Like 52°F

Humidity 87% Dew Point 48°F Wind ESE 3 MPH Barometer 29.98 in.

Visibility 10 mi.

Report from a NOAA weather station 5.2 mi. WNW of central Marion
at 5:45 PM Mon, Nov 24, 2025

Point Forecast at a Glance

MonNov 24

90%

TueNov 25

20%

WedNov 26

ThuNov 27

FriNov 28

SatNov 29

50%

SunNov 30

50%

7-Day Temperature Trend

Week Ahead Summary

High temperatures drop from 64°F to a low of 42°F, then recover to 48°F by week's end. Unsettled weather expected with wintry mix likely on at least 5 days.

Climate Context

This week's forecast shows temperatures running 3°F below the historical average for November-December. Normal highs for this period are around 51°F with lows around 32°F.

This Date in Weather History

1950 - The temperature at Chicago, IL, dipped to 2 below zero to equal their record for the month established on the 29th in 1872. On the first of the month that year Chicago established a record high for November with a reading of 81 degrees.

Marion, IL 7 Day Weather Forecast Details

Monday Nov 24

Night: Rain, mainly after 11pm. Low around 52. Light southeast wind. Chance of precipitation is 90%.

Tuesday Nov 25

Day: A 20 percent chance of rain before 7am. Mostly cloudy, with a high near 64. Calm wind becoming west southwest 5 to 7 mph in the morning.

Night: A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 37. Light west wind becoming west northwest 8 to 13 mph in the evening. Winds could gust as high as 22 mph.

Wednesday Nov 26

Day: Mostly sunny, with a high near 47. West northwest wind 9 to 17 mph, with gusts as high as 25 mph.

Night: Partly cloudy, with a low around 29. West northwest wind 5 to 7 mph.

Thursday Nov 27

Day: Sunny, with a high near 43. West northwest wind 5 to 11 mph.

Night: Mostly clear, with a low around 21. Light northwest wind.

Friday Nov 28

Day: Mostly sunny, with a high near 42. Calm wind becoming northwest around 5 mph.

Night: A slight chance of snow showers before midnight, then a chance of rain and snow showers. Mostly cloudy, with a low around 32. Calm wind becoming southeast around 6 mph after midnight.

Saturday Nov 29

Day: Rain and snow showers likely, becoming all rain after noon. Cloudy, with a high near 43. South southeast wind 6 to 10 mph.

Night: Showers likely. Cloudy, with a low around 34. South southeast wind 5 to 7 mph.

Sunday Nov 30

Day: Showers likely. Cloudy, with a high near 48. East wind 7 to 9 mph becoming south southwest in the morning.

Night: Showers likely. Cloudy, with a low around 36. East wind 6 to 8 mph becoming south after midnight.

Monday Dec 1

Day: A chance of showers. Mostly cloudy, with a high near 47. South wind around 9 mph becoming northwest in the afternoon.

About Marion, IL

The city of Marion is the county seat of Williamson County, Illinois, United States. The population in Marion, IL was 16,855 according to the 2020 census. It is part of a dispersed urban area that developed out of early 20th-century coal fields. Marion serves as the largest retail trade center in Southern Illinois with its central location along Interstate 57 and Illinois Route 13. It was dubbed the "Hub of the Universe" by former mayor Robert L. Butler. Its motto under Mayor Mike Absher is the "Oasis of Opportunity". The city is part of the Marion-Herrin Micropolitan Area and is a part of the Carbondale-Marion-Herrin, Illinois Combined Statistical Area with 123,272 residents, the sixth most populous Combined statistical area in Illinois.

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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