National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Jacksonville Municipal Airport (KIJX)

Lat: 39.77°NLon: 90.24°WElev: 614ft.

Overcast

39°F

4°C

Humidity 99%
Wind Speed Calm
Barometer 30.04 in
Dewpoint 39°F (4°C)
Visibility 7.00 mi
Last update 10 Jan 4:35 am CST
Extended Forecast for

Chapin IL

  • Overnight

    Overnight: Showers likely. Cloudy, with a low around 34. Northwest wind 5 to 8 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 34 °F

    Showers
    Likely

  • Saturday

    Saturday: Rain and snow showers likely before 9am, then a slight chance of snow showers after 5pm. Cloudy through mid morning, then gradual clearing, with a high near 42. West northwest wind 10 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 42 °F

    Rain/Snow
    Likely then
    Slight Chance
    Snow Showers

  • Saturday Night

    Saturday Night: A slight chance of snow showers before 9pm, then a chance of flurries between 9pm and 3am. Cloudy during the early evening, then gradual clearing, with a low around 25. Blustery, with a west northwest wind 13 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.

    Low: 25 °F

    Slight Chance
    Snow Showers
    then Chance
    Flurries and
    Blustery

  • Sunday

    Sunday: Sunny, with a high near 36. Northwest wind 7 to 16 mph, with gusts as high as 26 mph.

    High: 36 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 25. South southwest wind 6 to 10 mph, with gusts as high as 18 mph.

    Low: 25 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 48. West southwest wind 7 to 10 mph, with gusts as high as 18 mph.

    High: 48 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 35. Southwest wind 6 to 13 mph, with gusts as high as 23 mph.

    Low: 35 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 54.

    High: 54 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Showers likely. Cloudy, with a low around 34. Northwest wind 5 to 8 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain and snow showers likely before 9am, then a slight chance of snow showers after 5pm. Cloudy through mid morning, then gradual clearing, with a high near 42. West northwest wind 10 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Saturday Night
A slight chance of snow showers before 9pm, then a chance of flurries between 9pm and 3am. Cloudy during the early evening, then gradual clearing, with a low around 25. Blustery, with a west northwest wind 13 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.
Sunday
Sunny, with a high near 36. Northwest wind 7 to 16 mph, with gusts as high as 26 mph.
Sunday Night
Mostly clear, with a low around 25. South southwest wind 6 to 10 mph, with gusts as high as 18 mph.
Monday
Mostly sunny, with a high near 48. West southwest wind 7 to 10 mph, with gusts as high as 18 mph.
Monday Night
Partly cloudy, with a low around 35. Southwest wind 6 to 13 mph, with gusts as high as 23 mph.
Tuesday
Partly sunny, with a high near 54.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Mostly cloudy, with a high near 39.
Wednesday Night
Partly cloudy, with a low around 19.
Thursday
Mostly sunny, with a high near 35.
Thursday Night
Mostly cloudy, with a low around 27.
Friday
Mostly cloudy, with a high near 40.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chapin IL
 39.77°N 90.41°W (Elev. 627 ft)
Last Update:
4:26 am CST Jan 10, 2026
Forecast Valid:
4am CST Jan 10, 2026-6pm CST Jan 16, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database Weather Element Forecast

Chance of Precipitation