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

68°F

20°C

Humidity 86%
Wind Speed S 3 mph
Barometer 30.00 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 25 Jun 2:15 am CDT
Extended Forecast for

Fairfield IL

Flood Watch June 25, 04:00pm until June 27, 07:00am
Click here for hazard details and duration
Flood Watch

  • Overnight

    Overnight: A chance of showers and thunderstorms before 4am, then a slight chance of showers between 4am and 5am. Partly cloudy, with a steady temperature around 69. Calm wind. Chance of precipitation is 30%.

    Low: 69 °F

    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers, then showers and thunderstorms likely after 1pm. Mostly sunny, with a high near 86. Light and variable wind. Chance of precipitation is 60%.

    High: 86 °F

    Slight Chance
    Showers then
    T-storms
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 70%.

    Low: 68 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. High near 82. South wind 5 to 9 mph. Chance of precipitation is 80%.

    High: 82 °F

    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 69. South southwest wind 3 to 7 mph. Chance of precipitation is 80%.

    Low: 69 °F

    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 86. West southwest wind 3 to 6 mph. Chance of precipitation is 70%.

    High: 86 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. Light and variable wind.

    Low: 71 °F

    Chance
    T-storms

  • Sunday

    Sunday: Sunny, with a high near 93. South southwest wind 5 to 7 mph.

    High: 93 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 74. South wind 3 to 6 mph.

    Low: 74 °F

    Mostly Clear

Detailed Forecast

Overnight
A chance of showers and thunderstorms before 4am, then a slight chance of showers between 4am and 5am. Partly cloudy, with a steady temperature around 69. Calm wind. Chance of precipitation is 30%.
Thursday
A slight chance of showers, then showers and thunderstorms likely after 1pm. Mostly sunny, with a high near 86. Light and variable wind. Chance of precipitation is 60%.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 70%.
Friday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. High near 82. South wind 5 to 9 mph. Chance of precipitation is 80%.
Friday Night
Showers and possibly a thunderstorm. Low around 69. South southwest wind 3 to 7 mph. Chance of precipitation is 80%.
Saturday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 86. West southwest wind 3 to 6 mph. Chance of precipitation is 70%.
Saturday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. Light and variable wind.
Sunday
Sunny, with a high near 93. South southwest wind 5 to 7 mph.
Sunday Night
Mostly clear, with a low around 74. South wind 3 to 6 mph.
Monday
Sunny, with a high near 95. South southwest wind 3 to 7 mph.
Monday Night
Mostly clear, with a low around 75. South wind around 6 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 96. Calm wind becoming southwest around 5 mph.
Tuesday Night
Mostly clear, with a low around 75. Light south wind.
Wednesday
Sunny, with a high near 96. Light south southwest wind.
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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:
2:36 am CDT Jun 25, 2026
Forecast Valid:
2am CDT Jun 25, 2026-6pm CDT Jul 1, 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