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.

Fair

34°F

1°C

Humidity 82%
Wind Speed Calm
Barometer 30.17 in
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 6 Feb 10:55 pm CST
Extended Forecast for

Fairfield IL

  • Tonight

    Tonight: Partly cloudy, with a low around 20. North wind 6 to 8 mph, with gusts as high as 18 mph.

    Low: 20 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 30. North northeast wind around 6 mph becoming calm in the afternoon.

    High: 30 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 22. Calm wind becoming south southeast around 6 mph after midnight.

    Low: 22 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 42. South southeast wind 3 to 7 mph.

    High: 42 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 27. Calm wind.

    Low: 27 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 53. Light and variable wind.

    High: 53 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 37. Calm wind becoming south around 5 mph after midnight.

    Low: 37 °F

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers after noon. Mostly cloudy, with a high near 61. South southwest wind 5 to 7 mph.

    High: 61 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers likely, mainly after midnight. Mostly cloudy, with a low around 41. South southwest wind 6 to 8 mph becoming northwest after midnight.

    Low: 41 °F

    Showers
    Likely

Detailed Forecast

Tonight
Partly cloudy, with a low around 20. North wind 6 to 8 mph, with gusts as high as 18 mph.
Saturday
Sunny, with a high near 30. North northeast wind around 6 mph becoming calm in the afternoon.
Saturday Night
Increasing clouds, with a low around 22. Calm wind becoming south southeast around 6 mph after midnight.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 42. South southeast wind 3 to 7 mph.
Sunday Night
Mostly clear, with a low around 27. Calm wind.
Monday
Sunny, with a high near 53. Light and variable wind.
Monday Night
Mostly clear, with a low around 37. Calm wind becoming south around 5 mph after midnight.
Tuesday
A slight chance of showers after noon. Mostly cloudy, with a high near 61. South southwest wind 5 to 7 mph.
Tuesday Night
Showers likely, mainly after midnight. Mostly cloudy, with a low around 41. South southwest wind 6 to 8 mph becoming northwest after midnight.
Wednesday
A chance of showers. Mostly cloudy, with a high near 50. North northwest wind 7 to 10 mph.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 31. North wind around 6 mph.
Thursday
A slight chance of showers. Mostly cloudy, with a high near 45. North wind around 6 mph.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 29. North northeast wind 3 to 5 mph.
Friday
A slight chance of showers. Partly sunny, with a high near 43. North northeast 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:
8:42 pm CST Feb 6, 2026
Forecast Valid:
11pm CST Feb 6, 2026-6pm CST Feb 13, 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