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

85°F

29°C

Humidity 42%
Wind Speed Calm
Barometer 30.05 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 25 Aug 3:15 pm CDT
Extended Forecast for

4 Miles WSW Barnhill IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 86. Calm wind.

    High: 86 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 90. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 90 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 3am. Mostly cloudy, then gradually becoming mostly clear, with a low around 67. Calm wind. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 87. Calm wind becoming north northwest 5 to 7 mph in the afternoon.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 64. Light north wind.

    Low: 64 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 87. Calm wind becoming north northeast 5 to 7 mph in the afternoon.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 60. Light northeast wind.

    Low: 60 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 88. Calm wind.

    High: 88 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 86. Calm wind.
Tonight
Partly cloudy, with a low around 64. Calm wind.
Wednesday
Mostly sunny, with a high near 90. Calm wind becoming southwest around 5 mph in the afternoon.
Wednesday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 3am. Mostly cloudy, then gradually becoming mostly clear, with a low around 67. Calm wind. Chance of precipitation is 30%.
Thursday
Sunny, with a high near 87. Calm wind becoming north northwest 5 to 7 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 64. Light north wind.
Friday
Sunny, with a high near 87. Calm wind becoming north northeast 5 to 7 mph in the afternoon.
Friday Night
Clear, with a low around 60. Light northeast wind.
Saturday
Sunny, with a high near 88. Calm wind.
Saturday Night
Mostly clear, with a low around 64. Calm wind.
Sunday
Sunny, with a high near 93. Calm wind becoming south southwest around 6 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 70. Light south wind.
Monday
Mostly sunny, with a high near 95. Calm wind becoming southwest 5 to 9 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Barnhill IL
 38.25°N 88.47°W
Last Update:
1:26 pm CDT Aug 25, 2026
Forecast Valid:
3pm CDT Aug 25, 2026-6pm CDT Aug 31, 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