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

76°F

24°C

Humidity 83%
Wind Speed SW 5 mph
Barometer 30.03 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 8 Aug 1:35 am CDT
Extended Forecast for

4 Miles S Fairfield IL

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 73. Light southwest wind.

    Low: 73 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 90. Light west wind.

    High: 90 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 4am. Otherwise, mostly clear, with a low around 69. Calm wind.

    Low: 69 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 8am. Otherwise, sunny, with a high near 91. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 91 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 72. South wind around 6 mph.

    Low: 72 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 93. South southwest wind 5 to 9 mph.

    High: 93 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 75. South southwest wind 7 to 9 mph.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 93. Southwest wind 7 to 9 mph.

    High: 93 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, mainly after 1am. Mostly clear, with a low around 74. South southwest wind 6 to 10 mph.

    Low: 74 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 73. Light southwest wind.
Saturday
Mostly sunny, with a high near 90. Light west wind.
Saturday Night
Patchy fog after 4am. Otherwise, mostly clear, with a low around 69. Calm wind.
Sunday
Patchy fog before 8am. Otherwise, sunny, with a high near 91. Calm wind becoming south 5 to 8 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 72. South wind around 6 mph.
Monday
Sunny, with a high near 93. South southwest wind 5 to 9 mph.
Monday Night
Mostly clear, with a low around 75. South southwest wind 7 to 9 mph.
Tuesday
Sunny, with a high near 93. Southwest wind 7 to 9 mph.
Tuesday Night
A chance of showers and thunderstorms, mainly after 1am. Mostly clear, with a low around 74. South southwest wind 6 to 10 mph.
Wednesday
A chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 90. West southwest wind 6 to 8 mph.
Wednesday Night
Showers and thunderstorms likely. Partly cloudy, with a low around 71. Southwest wind 3 to 6 mph.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 86. West southwest wind around 6 mph becoming northwest in the afternoon.
Thursday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 68. North northeast wind 3 to 5 mph.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 84. Light and variable wind becoming south around 6 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Fairfield IL
 38.34°N 88.35°W
Last Update:
1:46 am CDT Aug 8, 2026
Forecast Valid:
1am CDT Aug 8, 2026-6pm CDT Aug 14, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation