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

Fairfield, Fairfield Municipal Airport (KFWC)

Lat: 38.38°NLon: 88.41°WElev: 436ft.

Overcast

39°F

4°C

Humidity 69%
Wind Speed N 13 G 18 mph
Barometer 30.12 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 28 Feb 11:35 pm CST
Extended Forecast for

4 Miles S Johnsonville IL

  • Tonight

    Tonight: Partly cloudy, with a low around 31. North wind 9 to 11 mph, with gusts as high as 20 mph.

    Low: 31 °F

    Partly Cloudy

  • Sunday

    Sunday: Increasing clouds, with a high near 46. North northeast wind 9 to 13 mph, with gusts as high as 20 mph.

    High: 46 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Rain and snow showers likely, mainly after midnight. Cloudy, with a low around 33. East northeast wind 7 to 9 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 33 °F

    Chance
    Rain/Snow
    then
    Rain/Snow
    Likely

  • Monday

    Monday: A 50 percent chance of showers, mainly before noon. Cloudy, with a high near 44. East wind 7 to 9 mph.

    High: 44 °F

    Chance
    Showers then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: Showers likely, mainly after midnight. Cloudy, with a low around 40. East wind 5 to 8 mph becoming south after midnight. Chance of precipitation is 60%.

    Low: 40 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely, with thunderstorms also possible after 3pm. Cloudy, with a high near 65. South southwest wind 8 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    High: 65 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely. Cloudy, with a low around 54. South wind around 7 mph. Chance of precipitation is 70%.

    Low: 54 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely, with thunderstorms also possible after noon. Cloudy, with a high near 67. South southwest wind 7 to 11 mph, with gusts as high as 18 mph.

    High: 67 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 55. South southwest wind around 8 mph.

    Low: 55 °F

    Showers
    Likely

Detailed Forecast

Tonight
Partly cloudy, with a low around 31. North wind 9 to 11 mph, with gusts as high as 20 mph.
Sunday
Increasing clouds, with a high near 46. North northeast wind 9 to 13 mph, with gusts as high as 20 mph.
Sunday Night
Rain and snow showers likely, mainly after midnight. Cloudy, with a low around 33. East northeast wind 7 to 9 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday
A 50 percent chance of showers, mainly before noon. Cloudy, with a high near 44. East wind 7 to 9 mph.
Monday Night
Showers likely, mainly after midnight. Cloudy, with a low around 40. East wind 5 to 8 mph becoming south after midnight. Chance of precipitation is 60%.
Tuesday
Showers likely, with thunderstorms also possible after 3pm. Cloudy, with a high near 65. South southwest wind 8 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Tuesday Night
Showers likely. Cloudy, with a low around 54. South wind around 7 mph. Chance of precipitation is 70%.
Wednesday
Showers likely, with thunderstorms also possible after noon. Cloudy, with a high near 67. South southwest wind 7 to 11 mph, with gusts as high as 18 mph.
Wednesday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 55. South southwest wind around 8 mph.
Thursday
Showers likely. Mostly cloudy, with a high near 68. South southwest wind 7 to 13 mph, with gusts as high as 20 mph.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. South southwest wind around 7 mph.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 72. South southwest wind 7 to 13 mph, with gusts as high as 20 mph.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 57. South southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Saturday
Showers likely. Cloudy, with a high near 66. Southwest wind 8 to 13 mph, with gusts as high as 21 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Johnsonville IL
 38.45°N 88.54°W
Last Update:
11:36 pm CST Feb 28, 2026
Forecast Valid:
11pm CST Feb 28, 2026-6pm CST Mar 7, 2026
 
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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