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

69°F

21°C

Humidity 40%
Wind Speed SW 14 G 25 mph
Barometer 30.28 in
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 9 Apr 10:55 am CDT
Extended Forecast for

Fairfield IL

  • Today

    Today: Sunny, with a high near 77. South southwest wind 10 to 14 mph, with gusts as high as 25 mph.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 55. South wind 6 to 8 mph.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 75. South southwest wind 8 to 11 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 50%.

    High: 75 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 53. Northeast wind around 6 mph. Chance of precipitation is 40%.

    Low: 53 °F

    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers. Partly sunny, with a high near 76. East northeast wind around 6 mph becoming southeast in the afternoon.

    High: 76 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 58. East southeast wind 3 to 6 mph.

    Low: 58 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 81. South southwest wind 6 to 15 mph, with gusts as high as 25 mph.

    High: 81 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. South southwest wind 10 to 14 mph, with gusts as high as 24 mph.

    Low: 63 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 80. South southwest wind 14 to 17 mph, with gusts as high as 26 mph.

    High: 80 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 77. South southwest wind 10 to 14 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 55. South wind 6 to 8 mph.
Friday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 75. South southwest wind 8 to 11 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 53. Northeast wind around 6 mph. Chance of precipitation is 40%.
Saturday
A 20 percent chance of showers. Partly sunny, with a high near 76. East northeast wind around 6 mph becoming southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 58. East southeast wind 3 to 6 mph.
Sunday
Partly sunny, with a high near 81. South southwest wind 6 to 15 mph, with gusts as high as 25 mph.
Sunday Night
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. South southwest wind 10 to 14 mph, with gusts as high as 24 mph.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 80. South southwest wind 14 to 17 mph, with gusts as high as 26 mph.
Monday Night
A slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 68. South southwest wind 11 to 13 mph, with gusts as high as 22 mph.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 83. South southwest wind 11 to 16 mph, with gusts as high as 25 mph.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South southwest wind around 11 mph, with gusts as high as 21 mph.
Wednesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 76. Southwest wind 11 to 15 mph, with gusts as high as 23 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:
4:41 am CDT Apr 9, 2026
Forecast Valid:
11am CDT Apr 9, 2026-6pm CDT Apr 15, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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