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.

Fair

36°F

2°C

Humidity 68%
Wind Speed N 15 G 23 mph
Barometer 30.20 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 23 Mar 4:35 am CDT
Extended Forecast for

Fairfield IL

  • Today

    Today: Mostly sunny, with a high near 53. North northeast wind 11 to 15 mph, with gusts as high as 25 mph.

    High: 53 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 34. East northeast wind around 8 mph.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 59. East southeast wind 5 to 9 mph.

    High: 59 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 40. East southeast wind around 5 mph becoming calm in the evening.

    Low: 40 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 71. Calm wind becoming south southwest 5 to 9 mph in the morning.

    High: 71 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 57. South wind 6 to 10 mph, with gusts as high as 18 mph.

    Low: 57 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 84. South southwest wind 9 to 13 mph, with gusts as high as 22 mph.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 43. South southwest wind 11 to 15 mph becoming north after midnight. Winds could gust as high as 24 mph.

    Low: 43 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers, mainly before 1pm. Mostly cloudy, with a high near 52. North wind around 15 mph, with gusts as high as 24 mph.

    High: 52 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 53. North northeast wind 11 to 15 mph, with gusts as high as 25 mph.
Tonight
Mostly cloudy, with a low around 34. East northeast wind around 8 mph.
Tuesday
Partly sunny, with a high near 59. East southeast wind 5 to 9 mph.
Tuesday Night
Partly cloudy, with a low around 40. East southeast wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 71. Calm wind becoming south southwest 5 to 9 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 57. South wind 6 to 10 mph, with gusts as high as 18 mph.
Thursday
Sunny, with a high near 84. South southwest wind 9 to 13 mph, with gusts as high as 22 mph.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 43. South southwest wind 11 to 15 mph becoming north after midnight. Winds could gust as high as 24 mph.
Friday
A chance of showers, mainly before 1pm. Mostly cloudy, with a high near 52. North wind around 15 mph, with gusts as high as 24 mph.
Friday Night
Mostly clear, with a low around 31. North wind 6 to 10 mph, with gusts as high as 18 mph.
Saturday
Sunny, with a high near 55. North wind around 7 mph.
Saturday Night
Mostly clear, with a low around 35. Light and variable wind.
Sunday
Mostly sunny, with a high near 62. South wind 5 to 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fairfield IL
 38.38°N 88.37°W
Last Update:
4:31 am CDT Mar 23, 2026
Forecast Valid:
4am CDT Mar 23, 2026-6pm CDT Mar 29, 2026
 
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Additional Resources

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Chance of Precipitation