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

66°F

19°C

Humidity 67%
Wind Speed S 8 mph
Barometer 29.97 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 31 Mar 1:35 am CDT
Extended Forecast for

Fairfield IL

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 66. South southwest wind around 11 mph, with gusts as high as 24 mph.

    Low: 66 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82. Breezy, with a south southwest wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 82 °F

    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 63. South southwest wind 9 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    Low: 63 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: Showers likely before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then showers likely after 4pm. Mostly cloudy, with a high near 76. South southwest wind 7 to 10 mph. Chance of precipitation is 60%.

    High: 76 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 64. South southeast wind 7 to 11 mph, with gusts as high as 21 mph.

    Low: 64 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 80. Breezy, with a south wind 13 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 70%.

    High: 80 °F

    Breezy.
    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 62. South wind 10 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.

    Low: 62 °F

    Showers

  • Friday

    Friday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 78. South southwest wind 8 to 11 mph, with gusts as high as 20 mph.

    High: 78 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. South wind around 10 mph, with gusts as high as 21 mph.

    Low: 62 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 66. South southwest wind around 11 mph, with gusts as high as 24 mph.
Tuesday
Mostly sunny, with a high near 82. Breezy, with a south southwest wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 33 mph.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 63. South southwest wind 9 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Wednesday
Showers likely before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then showers likely after 4pm. Mostly cloudy, with a high near 76. South southwest wind 7 to 10 mph. Chance of precipitation is 60%.
Wednesday Night
A 30 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 64. South southeast wind 7 to 11 mph, with gusts as high as 21 mph.
Thursday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 80. Breezy, with a south wind 13 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 70%.
Thursday Night
Showers and possibly a thunderstorm. Low around 62. South wind 10 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Friday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 78. South southwest wind 8 to 11 mph, with gusts as high as 20 mph.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. South wind around 10 mph, with gusts as high as 21 mph.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 72. South wind 11 to 17 mph, with gusts as high as 25 mph.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 42. West northwest wind 11 to 13 mph, with gusts as high as 20 mph.
Sunday
A chance of showers. Partly sunny, with a high near 56. Northwest wind 11 to 14 mph, with gusts as high as 21 mph.
Sunday Night
Mostly clear, with a low around 35. North wind 6 to 9 mph.
Monday
Sunny, with a high near 59. North wind around 7 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fairfield IL
 38.38°N 88.37°W
Last Update:
1:26 am CDT Mar 31, 2026
Forecast Valid:
1am CDT Mar 31, 2026-6pm CDT Apr 6, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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