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

Today's forecast for Rio shows a high of 28 degrees and a low of 6 degrees Fahrenheit. Cloudy, with a high near 28.

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

The 7-day forecast for Rio shows highs from 5 to 45 degrees and lows from -8 to 33 degrees Fahrenheit. Expect precipitation on 2 days with chances of 20% or higher.

Will it rain in Rio, IL this week?

Yes, rain is possible in Rio this week. Precipitation chances: Saturday (100% chance), Wednesday (50% chance).

How accurate is the Rio weather forecast?

WeatherForYou provides highly accurate Rio 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.

Rio, IL Weather Forecast and Current Conditions

Current Conditions From Nearby Station

Switch to Metric Units

22°F
Feels Like 22°F

Humidity 95% Dew Point 21°F Wind Calm Barometer 29.3 in.

Solar Rad 10 w/m²

Report from a personal weather station 5.8 mi. NNE of central Rio
at 7:47 AM Fri, Dec 12, 2025

Point Forecast at a Glance

FriDec 12

SatDec 13

100%

-8

SunDec 14

-7

MonDec 15

TueDec 16

WedDec 17

ThuDec 18

Jump to detailed forecast ↓

7-Day Temperature Trend

Week Ahead Summary

High temperatures dip from 28°F to a low of 5°F mid-week, then warm to 45°F. Some precipitation possible, including both rain and snow.

Climate Context

This week's forecast shows temperatures running 8°F below the historical average for December. Normal highs for this period are around 36°F with lows around 20°F.

This Date in Weather History

1967 - From December 12th through the 20th a series of snowstorms buries Flagstaff, AZ with nearly 85 inches of snow.

Rio, IL 7 Day Weather Forecast Details

Friday Dec 12

Day: Cloudy, with a high near 28. Light and variable wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 18 mph.

Night: Cloudy, with a low around 6. Wind chill values between -6 and 4. West northwest wind 10 to 14 mph, with gusts as high as 23 mph.

Saturday Dec 13

Day: Snow. High near 11. Wind chill values between -3 and -9. North northwest wind 8 to 10 mph, with gusts as high as 17 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

Night: Mostly clear, with a low around -8. Wind chill values between -16 and -26. Northwest wind around 10 mph, with gusts as high as 21 mph.

Sunday Dec 14

Day: Sunny and cold, with a high near 5. Northwest wind 5 to 10 mph becoming light and variable in the afternoon. Winds could gust as high as 20 mph.

Night: Mostly clear, with a low around -7. Light west southwest wind becoming south 8 to 13 mph after midnight. Winds could gust as high as 23 mph.

Monday Dec 15

Day: Mostly sunny, with a high near 28. Southwest wind 7 to 14 mph, with gusts as high as 24 mph.

Night: Partly cloudy, with a low around 16.

Tuesday Dec 16

Day: Mostly sunny, with a high near 38.

Night: Mostly cloudy, with a low around 30.

Wednesday Dec 17

Day: Mostly cloudy, with a high near 45.

Night: A chance of rain. Mostly cloudy, with a low around 33.

Thursday Dec 18

Day: Partly sunny, with a high near 43.

About Rio, IL

Rio is a village in Knox County, Illinois, United States. It had a population of 209 at the 2020 census and is part of the Galesburg Micropolitan Statistical Area. Rio is pronounced "Rye-Oh".

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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