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

67°F

19°C

Humidity 45%
Wind Speed SW 5 mph
Barometer 30.10 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 10 Nov 11:35 am CST
Extended Forecast for

Fairfield IL

  • Today

    Today: Sunny, with a high near 71. West wind around 6 mph becoming calm in the afternoon.

    High: 71 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 43. Calm wind.

    Low: 43 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: A slight chance of showers and thunderstorms between 2pm and 3pm. Partly sunny, then gradually becoming sunny, with a high near 70. Light and variable wind becoming west 9 to 14 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    High: 70 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42. Northwest wind around 11 mph, with gusts as high as 21 mph.

    Low: 42 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 51. Northwest wind 11 to 16 mph, with gusts as high as 22 mph.

    High: 51 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 30. North northwest wind 6 to 11 mph, with gusts as high as 18 mph.

    Low: 30 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 46. North northwest wind 6 to 13 mph, with gusts as high as 18 mph.

    High: 46 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 26. Light northwest wind.

    Low: 26 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 49. Calm wind.

    High: 49 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 71. West wind around 6 mph becoming calm in the afternoon.
Tonight
Mostly clear, with a low around 43. Calm wind.
Veterans Day
A slight chance of showers and thunderstorms between 2pm and 3pm. Partly sunny, then gradually becoming sunny, with a high near 70. Light and variable wind becoming west 9 to 14 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 42. Northwest wind around 11 mph, with gusts as high as 21 mph.
Thursday
Mostly sunny, with a high near 51. Northwest wind 11 to 16 mph, with gusts as high as 22 mph.
Thursday Night
Partly cloudy, with a low around 30. North northwest wind 6 to 11 mph, with gusts as high as 18 mph.
Friday
Sunny, with a high near 46. North northwest wind 6 to 13 mph, with gusts as high as 18 mph.
Friday Night
Mostly clear, with a low around 26. Light northwest wind.
Saturday
Sunny, with a high near 49. Calm wind.
Saturday Night
Mostly clear, with a low around 28. Calm wind.
Sunday
Mostly sunny, with a high near 52. Light and variable wind.
Sunday Night
Partly cloudy, with a low around 33. Calm wind.
Monday
Mostly sunny, with a high near 55. Calm wind becoming east southeast around 5 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

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

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Link to Local Radar Data Link to Satellite Data

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