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

78°F

26°C

Humidity 90%
Wind Speed Calm
Barometer 30.11 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 15 Aug 9:15 pm CDT
Extended Forecast for

Fairfield IL

  • Tonight

    Tonight: Clear, with a low around 73. Calm wind.

    Low: 73 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 95. Calm wind.

    High: 95 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 73. Calm wind.

    Low: 73 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 96. Calm wind.

    High: 96 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 74. Calm wind.

    Low: 74 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 97. Calm wind.

    High: 97 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 75. Calm wind.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 98. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 98 °F

    Hot

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 72. Light north northwest wind.

    Low: 72 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Clear, with a low around 73. Calm wind.
Saturday
Sunny, with a high near 95. Calm wind.
Saturday Night
Mostly clear, with a low around 73. Calm wind.
Sunday
Sunny, with a high near 96. Calm wind.
Sunday Night
Mostly clear, with a low around 74. Calm wind.
Monday
Sunny and hot, with a high near 97. Calm wind.
Monday Night
Mostly clear, with a low around 75. Calm wind.
Tuesday
Sunny and hot, with a high near 98. Calm wind becoming west northwest around 6 mph in the afternoon.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 72. Light north northwest wind.
Wednesday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 88. North wind 3 to 7 mph.
Wednesday Night
Partly cloudy, with a low around 67. North northeast wind 3 to 6 mph.
Thursday
Mostly sunny, with a high near 85. Northeast wind 5 to 8 mph.
Thursday Night
Mostly clear, with a low around 66. Northeast wind around 6 mph becoming calm in the evening.
Friday
Sunny, with a high near 87. Calm wind becoming north northeast around 5 mph in the afternoon.
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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:
8:45 pm CDT Aug 15, 2025
Forecast Valid:
9pm CDT Aug 15, 2025-6pm CDT Aug 22, 2025
 
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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