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

24°F

-4°C

Humidity 65%
Wind Speed W 6 mph
Barometer 30.36 in
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill17°F (-8°C)
Last update 29 Dec 8:35 pm CST
Extended Forecast for

Fairfield IL

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 17. Northwest wind 6 to 13 mph, with gusts as high as 22 mph.

    Low: 17 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 32. West northwest wind 6 to 8 mph.

    High: 32 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a steady temperature around 28. Southwest wind around 6 mph.

    Low: 28 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 40. West northwest wind 6 to 9 mph.

    High: 40 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 24. West wind around 5 mph becoming calm in the evening.

    Low: 24 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 38. North wind around 5 mph becoming calm in the afternoon.

    High: 38 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 27. Calm wind.

    Low: 27 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 46. Light and variable wind.

    High: 46 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A slight chance of showers before midnight. Mostly cloudy, with a low around 29. Calm wind becoming north northeast around 5 mph after midnight.

    Low: 29 °F

    Slight Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 17. Northwest wind 6 to 13 mph, with gusts as high as 22 mph.
Tuesday
Mostly sunny, with a high near 32. West northwest wind 6 to 8 mph.
Tuesday Night
Mostly clear, with a steady temperature around 28. Southwest wind around 6 mph.
Wednesday
Partly sunny, with a high near 40. West northwest wind 6 to 9 mph.
Wednesday Night
Partly cloudy, with a low around 24. West wind around 5 mph becoming calm in the evening.
New Year's Day
Mostly sunny, with a high near 38. North wind around 5 mph becoming calm in the afternoon.
Thursday Night
Mostly cloudy, with a low around 27. Calm wind.
Friday
Mostly cloudy, with a high near 46. Light and variable wind.
Friday Night
A slight chance of showers before midnight. Mostly cloudy, with a low around 29. Calm wind becoming north northeast around 5 mph after midnight.
Saturday
Mostly sunny, with a high near 43. North wind 3 to 5 mph.
Saturday Night
Partly cloudy, with a low around 26. Calm wind.
Sunday
Mostly sunny, with a high near 45. Calm wind becoming south around 6 mph.
Sunday Night
Partly cloudy, with a low around 33. South southwest wind 3 to 5 mph.
Monday
Mostly sunny, with a high near 50. West wind 5 to 7 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fairfield IL
 38.38°N 88.37°W
Last Update:
7:11 pm CST Dec 29, 2025
Forecast Valid:
8pm CST Dec 29, 2025-6pm CST Jan 5, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation