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

38°F

3°C

Humidity 99%
Wind Speed S 5 mph
Barometer 30.18 in
Dewpoint 37°F (3°C)
Visibility 3.00 mi
Wind Chill34°F (1°C)
Last update 3 Mar 12:15 am CST
Extended Forecast for

Jacksonville IL

  • Overnight

    Overnight: Rain likely, mainly after 4am. Patchy fog after 2am. Otherwise, cloudy, with a low around 37. East southeast wind around 6 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 37 °F

    Rain Likely
    and Patchy
    Fog

  • Tuesday

    Tuesday: Rain and thunderstorms before 2pm, then rain and possibly a thunderstorm, mainly after 2pm. High near 50. East southeast wind around 5 mph becoming light and variable. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 50 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm, mainly before 4am, then a chance of rain and thunderstorms after 4am. Patchy fog. Low around 43. East northeast wind around 7 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 43 °F

    Rain and
    Patchy Fog

  • Wednesday

    Wednesday: Rain. Patchy fog before 7am. High near 58. East wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 58 °F

    Rain and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: Rain and possibly a thunderstorm. Low around 49. East wind around 6 mph becoming southwest after midnight. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 49 °F

    Rain

  • Thursday

    Thursday: Rain likely, mainly before noon. Cloudy, then gradually becoming mostly sunny, with a high near 63. Southwest wind 5 to 9 mph, with gusts as high as 16 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 63 °F

    Rain Likely
    then Chance
    Rain

  • Thursday Night

    Thursday Night: Rain likely after midnight. Mostly cloudy, with a low around 51. Light and variable wind becoming south southeast 5 to 10 mph in the evening. Winds could gust as high as 18 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 51 °F

    Partly Cloudy
    then Rain
    Likely

  • Friday

    Friday: Rain likely, mainly before noon. Mostly cloudy, with a high near 76. Chance of precipitation is 70%.

    High: 76 °F

    Rain Likely

  • Friday Night

    Friday Night: Rain likely, then rain and possibly a thunderstorm after midnight. Low around 54. Chance of precipitation is 90%.

    Low: 54 °F

    Rain Likely
    then Rain

Detailed Forecast

Overnight
Rain likely, mainly after 4am. Patchy fog after 2am. Otherwise, cloudy, with a low around 37. East southeast wind around 6 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Rain and thunderstorms before 2pm, then rain and possibly a thunderstorm, mainly after 2pm. High near 50. East southeast wind around 5 mph becoming light and variable. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Rain and possibly a thunderstorm, mainly before 4am, then a chance of rain and thunderstorms after 4am. Patchy fog. Low around 43. East northeast wind around 7 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
Rain. Patchy fog before 7am. High near 58. East wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain and possibly a thunderstorm. Low around 49. East wind around 6 mph becoming southwest after midnight. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Rain likely, mainly before noon. Cloudy, then gradually becoming mostly sunny, with a high near 63. Southwest wind 5 to 9 mph, with gusts as high as 16 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain likely after midnight. Mostly cloudy, with a low around 51. Light and variable wind becoming south southeast 5 to 10 mph in the evening. Winds could gust as high as 18 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain likely, mainly before noon. Mostly cloudy, with a high near 76. Chance of precipitation is 70%.
Friday Night
Rain likely, then rain and possibly a thunderstorm after midnight. Low around 54. Chance of precipitation is 90%.
Saturday
A 50 percent chance of rain before noon. Mostly cloudy, with a high near 66.
Saturday Night
Partly cloudy, with a low around 40.
Sunday
Sunny, with a high near 65.
Sunday Night
Mostly clear, with a low around 45.
Monday
Mostly sunny, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
Jacksonville IL
 39.73°N 90.24°W (Elev. 607 ft)
Last Update:
12:31 am CST Mar 3, 2026
Forecast Valid:
12am CST Mar 3, 2026-6pm CDT Mar 9, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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