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

48°F

9°C

Humidity 68%
Wind Speed Calm
Barometer 30.03 in
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 16 Feb 11:15 pm CST
Extended Forecast for

Fairfield IL

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 40. Calm wind becoming south around 6 mph after midnight.

    Low: 40 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 61. South wind 6 to 14 mph, with gusts as high as 26 mph.

    High: 61 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 55. South wind 14 to 18 mph, with gusts as high as 31 mph.

    Low: 55 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 71. West southwest wind 7 to 17 mph, with gusts as high as 30 mph.

    High: 71 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after midnight. Partly cloudy, with a low around 51. South wind around 6 mph.

    Low: 51 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 70. South wind 6 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    High: 70 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 40. West wind around 11 mph, with gusts as high as 22 mph.

    Low: 40 °F

    Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 52. West wind 6 to 14 mph, with gusts as high as 23 mph.

    High: 52 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 33. Northwest wind around 5 mph.

    Low: 33 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 40. Calm wind becoming south around 6 mph after midnight.
Tuesday
Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 61. South wind 6 to 14 mph, with gusts as high as 26 mph.
Tuesday Night
Mostly cloudy, with a low around 55. South wind 14 to 18 mph, with gusts as high as 31 mph.
Wednesday
Mostly sunny, with a high near 71. West southwest wind 7 to 17 mph, with gusts as high as 30 mph.
Wednesday Night
A 20 percent chance of showers after midnight. Partly cloudy, with a low around 51. South wind around 6 mph.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 70. South wind 6 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Thursday Night
A 40 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 40. West wind around 11 mph, with gusts as high as 22 mph.
Friday
Mostly sunny, with a high near 52. West wind 6 to 14 mph, with gusts as high as 23 mph.
Friday Night
Partly cloudy, with a low around 33. Northwest wind around 5 mph.
Saturday
Mostly sunny, with a high near 48. North wind 5 to 7 mph.
Saturday Night
A chance of showers. Partly cloudy, with a low around 29. North wind around 6 mph.
Sunday
Mostly sunny, with a high near 41. Northwest wind 6 to 10 mph.
Sunday Night
Partly cloudy, with a low around 22. North northwest wind around 6 mph.
Monday
Mostly sunny, with a high near 40. North northwest wind around 6 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Fairfield IL
 38.38°N 88.37°W
Last Update:
10:47 pm CST Feb 16, 2026
Forecast Valid:
11pm CST Feb 16, 2026-6pm CST Feb 23, 2026
 
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Additional Resources

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Chance of Precipitation