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

Hazardous Weather Conditions

Current conditions at

Jacksonville Municipal Airport (KIJX)

Lat: 39.77°NLon: 90.24°WElev: 614ft.

Fair

57°F

14°C

Humidity 61%
Wind Speed S 15 G 20 mph
Barometer 29.52 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 15 Mar 5:15 am CDT
Extended Forecast for

Chapin IL

Wind Advisory March 15, 10:00am until March 16, 07:00am
Click here for hazard details and duration
Wind Advisory

  • Today

    Today: Rain and thunderstorms likely, then rain and possibly a thunderstorm after 4pm. High near 65. Breezy, with a south wind 20 to 28 mph, with gusts as high as 43 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 65 °F

    Breezy.
    Chance
    T-storms then
    Rain

  • Tonight

    Tonight: Rain likely before 9pm, then a chance of rain and snow between 9pm and 10pm, then snow likely after 10pm. Patchy blowing snow after 10pm. Cloudy, with a low around 18. Wind chill values between 5 and 15. Windy, with a west northwest wind 26 to 31 mph, with gusts as high as 47 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    Low: 18 °F

    Rain/Snow
    Likely and
    Patchy
    Blowing Snow

  • Monday

    Monday: A 30 percent chance of snow before 1pm. Patchy blowing snow. Mostly cloudy, with a high near 25. Wind chill values between -2 and 8. Windy, with a west northwest wind 24 to 31 mph, with gusts as high as 45 mph.

    High: 25 °F

    Chance Snow
    and Patchy
    Blowing Snow

  • Monday Night

    Monday Night: Partly cloudy, with a low around 9. Wind chill values between -5 and 5. Blustery, with a northwest wind 11 to 20 mph, with gusts as high as 29 mph.

    Low: 9 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 33. Northwest wind 6 to 9 mph becoming south southwest in the afternoon. Winds could gust as high as 16 mph.

    High: 33 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 27. South wind 7 to 15 mph, with gusts as high as 26 mph.

    Low: 27 °F

    Chance Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 58. South wind 10 to 14 mph becoming west in the afternoon. Winds could gust as high as 23 mph.

    High: 58 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

Detailed Forecast

Today
Rain and thunderstorms likely, then rain and possibly a thunderstorm after 4pm. High near 65. Breezy, with a south wind 20 to 28 mph, with gusts as high as 43 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Rain likely before 9pm, then a chance of rain and snow between 9pm and 10pm, then snow likely after 10pm. Patchy blowing snow after 10pm. Cloudy, with a low around 18. Wind chill values between 5 and 15. Windy, with a west northwest wind 26 to 31 mph, with gusts as high as 47 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Monday
A 30 percent chance of snow before 1pm. Patchy blowing snow. Mostly cloudy, with a high near 25. Wind chill values between -2 and 8. Windy, with a west northwest wind 24 to 31 mph, with gusts as high as 45 mph.
Monday Night
Partly cloudy, with a low around 9. Wind chill values between -5 and 5. Blustery, with a northwest wind 11 to 20 mph, with gusts as high as 29 mph.
Tuesday
Mostly sunny, with a high near 33. Northwest wind 6 to 9 mph becoming south southwest in the afternoon. Winds could gust as high as 16 mph.
Tuesday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 27. South wind 7 to 15 mph, with gusts as high as 26 mph.
Wednesday
Mostly sunny, with a high near 58. South wind 10 to 14 mph becoming west in the afternoon. Winds could gust as high as 23 mph.
Wednesday Night
Partly cloudy, with a low around 38.
Thursday
Mostly sunny, with a high near 67.
Thursday Night
Partly cloudy, with a low around 42.
Friday
Mostly sunny, with a high near 73.
Friday Night
Mostly cloudy, with a low around 45.
Saturday
Partly sunny, with a high near 64.
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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:
4:36 am CDT Mar 15, 2026
Forecast Valid:
5am CDT Mar 15, 2026-6pm CDT Mar 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation