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.

Overcast

69°F

21°C

Humidity 98%
Wind Speed Calm
Barometer 29.66 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 2 Aug 2:15 am CDT
Extended Forecast for

Fairfield IL

  • Overnight

    Overnight: A 50 percent chance of showers, mainly before 4am. Mostly cloudy, with a low around 65. North northwest wind 3 to 6 mph.

    Low: 65 °F

    Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly between 2pm and 4pm. Partly sunny, with a high near 79. North wind 10 to 14 mph, with gusts as high as 22 mph.

    High: 79 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 63. North wind 5 to 10 mph.

    Low: 63 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 83. North northeast wind 5 to 7 mph.

    High: 83 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 63. Light northeast wind.

    Low: 63 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 84. Calm wind.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64. Calm wind.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86. Calm wind.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

Detailed Forecast

Overnight
A 50 percent chance of showers, mainly before 4am. Mostly cloudy, with a low around 65. North northwest wind 3 to 6 mph.
Sunday
A 30 percent chance of showers and thunderstorms, mainly between 2pm and 4pm. Partly sunny, with a high near 79. North wind 10 to 14 mph, with gusts as high as 22 mph.
Sunday Night
Partly cloudy, with a low around 63. North wind 5 to 10 mph.
Monday
Partly sunny, then gradually becoming sunny, with a high near 83. North northeast wind 5 to 7 mph.
Monday Night
Clear, with a low around 63. Light northeast wind.
Tuesday
Sunny, with a high near 84. Calm wind.
Tuesday Night
Mostly clear, with a low around 64. Calm wind.
Wednesday
Sunny, with a high near 86. Calm wind.
Wednesday Night
A slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 67. Calm wind.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 86. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 69. Light south wind.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 69. Calm wind.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 89. Calm wind becoming southwest around 5 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fairfield IL
 38.38°N 88.34°W
Last Update:
1:50 am CDT Aug 2, 2026
Forecast Valid:
2am CDT Aug 2, 2026-6pm CDT Aug 8, 2026
 
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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