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

Hazardous Weather Conditions

Current conditions at

Fairfield, Fairfield Municipal Airport (KFWC)

Lat: 38.38°NLon: 88.41°WElev: 436ft.

Overcast

74°F

23°C

Humidity 42%
Wind Speed S 13 G 21 mph
Barometer 29.98 in
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 12 Apr 8:55 pm CDT
Extended Forecast for

Fairfield IL

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly before 4am, then a slight chance of thunderstorms after 5am. Mostly cloudy, with a low around 65. South southwest wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    T-storms

  • Monday

    Monday: A slight chance of showers between 7am and noon. Mostly sunny, with a high near 82. South southwest wind 13 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

    High: 82 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 67. South southwest wind 11 to 14 mph, with gusts as high as 23 mph.

    Low: 67 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. South southwest wind 10 to 16 mph, with gusts as high as 25 mph.

    High: 85 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 68. South southwest wind 10 to 14 mph, with gusts as high as 22 mph.

    Low: 68 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 83. South southwest wind 10 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.

    High: 83 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 65. South southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    Low: 65 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 81. South southwest wind around 10 mph, with gusts as high as 18 mph.

    High: 81 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61. South southwest wind 3 to 5 mph.

    Low: 61 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers and thunderstorms, mainly before 4am, then a slight chance of thunderstorms after 5am. Mostly cloudy, with a low around 65. South southwest wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Monday
A slight chance of showers between 7am and noon. Mostly sunny, with a high near 82. South southwest wind 13 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 67. South southwest wind 11 to 14 mph, with gusts as high as 23 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. South southwest wind 10 to 16 mph, with gusts as high as 25 mph.
Tuesday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 68. South southwest wind 10 to 14 mph, with gusts as high as 22 mph.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 83. South southwest wind 10 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 65. South southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Thursday
A chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 81. South southwest wind around 10 mph, with gusts as high as 18 mph.
Thursday Night
Mostly clear, with a low around 61. South southwest wind 3 to 5 mph.
Friday
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. South southwest wind 5 to 10 mph, with gusts as high as 18 mph.
Friday Night
A chance of showers. Mostly cloudy, with a low around 66. South wind 8 to 10 mph, with gusts as high as 20 mph.
Saturday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 80. South southwest wind 10 to 15 mph, with gusts as high as 22 mph.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 47. West wind around 10 mph, with gusts as high as 18 mph.
Sunday
A slight chance of showers. Mostly sunny, with a high near 61. Northwest wind 9 to 11 mph, with gusts as high as 18 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Fairfield IL
 38.38°N 88.37°W
Last Update:
8:02 pm CDT Apr 12, 2026
Forecast Valid:
9pm CDT Apr 12, 2026-6pm CDT Apr 19, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation