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

Today's forecast for Chapin shows a high of 32 degrees and a low of 12 degrees Fahrenheit. Mostly cloudy, with a high near 32.

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

The 7-day forecast for Chapin shows highs from 4 to 50 degrees and lows from -8 to 37 degrees Fahrenheit. Expect precipitation on 3 days with chances of 20% or higher.

Will it rain in Chapin, IL this week?

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

How accurate is the Chapin weather forecast?

WeatherForYou provides highly accurate Chapin 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.

Chapin, IL Weather Forecast and Current Conditions

Current Conditions From Nearby Station

Switch to Metric Units

27°F
Feels Like 19°F

Humidity 92% Dew Point 25°F Wind ENE 8 MPH Barometer 30.07 in.

Visibility 7 mi.

Report from a NOAA weather station 5.2 mi. SW of central Chapin
at 6:54 AM Fri, Dec 12, 2025

Point Forecast at a Glance

FriDec 12

SatDec 13

100%

-7

SunDec 14

-8

MonDec 15

TueDec 16

WedDec 17

ThuDec 18

50%

Jump to detailed forecast ↓

7-Day Temperature Trend

Week Ahead Summary

High temperatures dip from 32°F to a low of 4°F mid-week, then warm to 50°F. Some precipitation possible, including both rain and snow.

Climate Context

This week's forecast shows temperatures running 9°F below the historical average for December. Normal highs for this period are around 39°F with lows around 24°F.

This Date in Weather History

1882 - Portland, OR, was drenched with 7.66 inches of rain, a record 24 hour total for that location.

Chapin, IL 7 Day Weather Forecast Details

Friday Dec 12

Day: Mostly cloudy, with a high near 32. East northeast wind 6 to 8 mph becoming west northwest in the afternoon.

Night: Cloudy, with a low around 12. Wind chill values between 4 and 9. West northwest wind 9 to 11 mph, with gusts as high as 18 mph.

Saturday Dec 13

Day: Snow. High near 20. Wind chill values between -2 and 6. North northwest wind around 11 mph, with gusts as high as 16 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

Night: Mostly cloudy, then gradually becoming mostly clear, with a low around -7. Wind chill values between -16 and -26. Northwest wind 11 to 14 mph, with gusts as high as 18 mph.

Sunday Dec 14

Day: Sunny and cold, with a high near 4. Northwest wind 7 to 14 mph, with gusts as high as 18 mph.

Night: Mostly clear, with a low around -8. Light and variable wind becoming south 5 to 9 mph after midnight.

Monday Dec 15

Day: Sunny, with a high near 24. South wind 11 to 14 mph, with gusts as high as 21 mph.

Night: Partly cloudy, with a low around 17.

Tuesday Dec 16

Day: Mostly sunny, with a high near 36.

Night: Mostly cloudy, with a low around 30.

Wednesday Dec 17

Day: Partly sunny, with a high near 47.

Night: A chance of rain. Mostly cloudy, with a low around 37.

Thursday Dec 18

Day: A chance of rain. Partly sunny, with a high near 50.

About Chapin, IL

Chapin is a village in Morgan County, Illinois, United States. The population was 475 at the 2020 census. It is part of the Jacksonville 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.

Your favorites: