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

Today's forecast for Clayton shows a high of 46 degrees Fahrenheit. Mostly sunny, with a high near 46.

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

The 7-day forecast for Clayton shows highs from 35 to 49 degrees and lows from 18 to 32 degrees Fahrenheit. Expect precipitation on 2 days with chances of 20% or higher.

Will it rain in Clayton, IL this week?

Yes, rain is possible in Clayton this week. Precipitation chances: Wednesday (50% chance), Thursday (80% chance).

How accurate is the Clayton weather forecast?

WeatherForYou provides highly accurate Clayton 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.

Clayton, IL Weather Forecast and Current Conditions

Current Conditions From Nearby Station

Switch to Metric Units

38°F
Feels Like 33°F

Humidity 79% Dew Point 32°F Wind W 6 MPH Barometer 30 in.

Visibility 10 mi.

Report from a NOAA weather station 9.1 mi. ESE of central Clayton
at 5:35 AM Wed, Dec 17, 2025

Point Forecast at a Glance

WedDec 17

ThuDec 18

80%

FriDec 19

SatDec 20

SunDec 21

MonDec 22

TueDec 23

Jump to detailed forecast ↓

7-Day Temperature Trend

Week Ahead Summary

Variable high temperatures through the week, ranging from 35°F to 49°F. Some precipitation possible with wintry mix on at least one day.

Climate Context

This week's forecast shows temperatures running 3°F above the historical average for December. Normal highs for this period are around 40°F with lows around 24°F.

This Date in Weather History

1884 - A three week blockade of snow began at Portland, OR. A record December total of 34 inches was received.

Clayton, IL 7 Day Weather Forecast Details

Wednesday Dec 17

Day: Mostly sunny, with a high near 46. Light and variable wind becoming southeast 5 to 8 mph in the afternoon.

Night: A 50 percent chance of rain after 3am. Increasing clouds, with a temperature rising to around 48 by 4am. Southeast wind 10 to 18 mph becoming southwest after midnight. Winds could gust as high as 31 mph.

Thursday Dec 18

Day: Rain before 3pm, then a slight chance of rain and snow. Temperature falling to around 38 by 5pm. Breezy, with a southwest wind 18 to 22 mph becoming west in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Night: Partly cloudy, with a low around 18. Breezy, with a west wind 13 to 23 mph, with gusts as high as 36 mph.

Friday Dec 19

Day: Sunny, with a high near 35. Northwest wind 7 to 11 mph becoming south in the afternoon.

Night: Partly cloudy, with a low around 29.

Saturday Dec 20

Day: Partly sunny, with a high near 49.

Night: Partly cloudy, with a low around 24.

Sunday Dec 21

Day: Mostly sunny, with a high near 39.

Night: Mostly cloudy, with a low around 24.

Monday Dec 22

Day: Partly sunny, with a high near 40.

Night: Mostly cloudy, with a low around 32.

Tuesday Dec 23

Day: Partly sunny, with a high near 49.

About Clayton, IL

Clayton is a village in Adams County, Illinois, United States. As of the 2020 census, the total population was 639 people, down from 709 at the 2010 census. It is part of the Quincy, IL–MO Micropolitan Statistical Area.

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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