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

79°F

26°C

Humidity 77%
Wind Speed S 6 mph
Barometer 30.05 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 22 Jun 1:15 am CDT
Extended Forecast for

Fairfield IL

Heat Advisory June 22, 01:35am until June 24, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 22, 01:35am until June 24, 07:00pm

    NOW until 7:00pm Tue

    Heat Advisory

  • Overnight

    Low: 75 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 94. South southwest wind 6 to 9 mph.

    High: 94 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 76. South wind 3 to 6 mph.

    Low: 76 °F

    Clear

  • Monday

    Monday: A 20 percent chance of showers before 1pm. Sunny, with a high near 94. South southwest wind 3 to 6 mph.

    High: 94 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 75. South wind around 5 mph becoming calm in the evening.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 93. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 93 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 74. Light south southwest wind.

    Low: 74 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 93. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 93 °F

    Sunny

Detailed Forecast

Overnight
Clear, with a low around 75. South southwest wind around 6 mph.
Sunday
Sunny, with a high near 94. South southwest wind 6 to 9 mph.
Sunday Night
Clear, with a low around 76. South wind 3 to 6 mph.
Monday
A 20 percent chance of showers before 1pm. Sunny, with a high near 94. South southwest wind 3 to 6 mph.
Monday Night
Mostly clear, with a low around 75. South wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 93. Calm wind becoming south southwest around 6 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 74. Light south southwest wind.
Wednesday
Sunny, with a high near 93. Calm wind becoming southwest around 6 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 75. Light south southwest wind.
Thursday
A slight chance of showers and thunderstorms. Sunny, with a high near 93. Calm wind becoming southwest 5 to 7 mph in the morning.
Thursday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 75. South southwest wind 3 to 6 mph.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Southwest wind 3 to 7 mph.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 74. Southwest wind around 5 mph becoming calm in the evening.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Southwest wind 3 to 7 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:
10:46 pm CDT Jun 21, 2025
Forecast Valid:
1am CDT Jun 22, 2025-6pm CDT Jun 28, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation