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 70%
Wind Speed S 13 mph
Barometer 29.67 in
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 17 Jun 9:35 am CDT
Extended Forecast for

Fairfield IL

Wind Advisory June 17, 01:00pm until June 17, 08:00pm
Click here for hazard details and duration
Wind Advisory

  • Today

    Today: Mostly sunny, with a high near 88. Breezy, with a south southwest wind 9 to 14 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 40 mph.

    High: 88 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 2am. Some of the storms could produce heavy rainfall. Low around 70. Breezy, with a west southwest wind 18 to 23 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 38 mph. Chance of precipitation is 90%.

    Low: 70 °F

    Heavy Rain
    and Breezy

  • Thursday

    Thursday: Mostly sunny, with a high near 83. West wind 6 to 8 mph.

    High: 83 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 61. Northwest wind around 6 mph becoming calm in the evening.

    Low: 61 °F

    Mostly Cloudy

  • Juneteenth

    Juneteenth: Sunny, with a high near 82. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 82 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 62. Light and variable wind.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 86. Calm wind becoming south around 5 mph in the afternoon.

    High: 86 °F

    Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66. Light south southeast wind.

    Low: 66 °F

    Mostly Clear
    then Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 85. Southwest wind 6 to 15 mph, with gusts as high as 23 mph.

    High: 85 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Today
Mostly sunny, with a high near 88. Breezy, with a south southwest wind 9 to 14 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 40 mph.
Tonight
Showers and thunderstorms, mainly before 2am. Some of the storms could produce heavy rainfall. Low around 70. Breezy, with a west southwest wind 18 to 23 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 38 mph. Chance of precipitation is 90%.
Thursday
Mostly sunny, with a high near 83. West wind 6 to 8 mph.
Thursday Night
Mostly cloudy, with a low around 61. Northwest wind around 6 mph becoming calm in the evening.
Juneteenth
Sunny, with a high near 82. Calm wind becoming northwest around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 62. Light and variable wind.
Saturday
Sunny, with a high near 86. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66. Light south southeast wind.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 85. Southwest wind 6 to 15 mph, with gusts as high as 23 mph.
Sunday Night
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 68. West wind 13 to 15 mph, with gusts as high as 20 mph.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 82. West northwest wind 11 to 13 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Monday Night
A slight chance of showers. Partly cloudy, with a low around 63. North wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 82. Northeast wind around 6 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:
9:06 am CDT Jun 17, 2026
Forecast Valid:
9am CDT Jun 17, 2026-6pm CDT Jun 23, 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