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

80°F

27°C

Humidity 44%
Wind Speed SW 18 G 28 mph
Barometer 29.76 in
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 26 Mar 7:15 pm CDT
Extended Forecast for

4 Miles S Johnsonville IL

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Increasing clouds, with a low around 42. Breezy, with a south southwest wind 13 to 20 mph becoming north northeast after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 70%.

    Low: 42 °F

    Slight Chance
    T-storms and
    Breezy then
    Showers
    Likely

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms, mainly before 10am. Cloudy through mid morning, then gradual clearing, with a high near 51. North wind 15 to 18 mph, with gusts as high as 30 mph.

    High: 51 °F

    Chance
    T-storms then
    Partly Sunny

  • Friday Night

    Friday Night: Patchy frost after 5am. Otherwise, mostly clear, with a low around 30. North wind 6 to 11 mph, with gusts as high as 21 mph.

    Low: 30 °F

    Mostly Clear
    then Patchy
    Frost

  • Saturday

    Saturday: Patchy frost before 8am. Otherwise, sunny, with a high near 54. North northeast wind around 6 mph becoming southeast in the afternoon.

    High: 54 °F

    Patchy Frost
    then Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 39. South southeast wind 3 to 6 mph.

    Low: 39 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 65. South wind 6 to 11 mph, with gusts as high as 18 mph.

    High: 65 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 55. South wind 7 to 10 mph, with gusts as high as 18 mph.

    Low: 55 °F

    Mostly Cloudy

  • Monday

    Monday: A slight chance of showers before 1pm. Mostly sunny, with a high near 78. South southwest wind 10 to 15 mph, with gusts as high as 23 mph.

    High: 78 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers. Partly cloudy, with a low around 62. South wind 10 to 13 mph, with gusts as high as 23 mph.

    Low: 62 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Increasing clouds, with a low around 42. Breezy, with a south southwest wind 13 to 20 mph becoming north northeast after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 70%.
Friday
A 50 percent chance of showers and thunderstorms, mainly before 10am. Cloudy through mid morning, then gradual clearing, with a high near 51. North wind 15 to 18 mph, with gusts as high as 30 mph.
Friday Night
Patchy frost after 5am. Otherwise, mostly clear, with a low around 30. North wind 6 to 11 mph, with gusts as high as 21 mph.
Saturday
Patchy frost before 8am. Otherwise, sunny, with a high near 54. North northeast wind around 6 mph becoming southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 39. South southeast wind 3 to 6 mph.
Sunday
Partly sunny, with a high near 65. South wind 6 to 11 mph, with gusts as high as 18 mph.
Sunday Night
Mostly cloudy, with a low around 55. South wind 7 to 10 mph, with gusts as high as 18 mph.
Monday
A slight chance of showers before 1pm. Mostly sunny, with a high near 78. South southwest wind 10 to 15 mph, with gusts as high as 23 mph.
Monday Night
A slight chance of showers. Partly cloudy, with a low around 62. South wind 10 to 13 mph, with gusts as high as 23 mph.
Tuesday
A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 83. South southwest wind 11 to 17 mph, with gusts as high as 26 mph.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. South southwest wind 11 to 14 mph, with gusts as high as 25 mph.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 77. South southwest wind 14 to 17 mph, with gusts as high as 25 mph.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. South wind 11 to 13 mph, with gusts as high as 23 mph.
Thursday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 71. South wind around 15 mph, with gusts as high as 24 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Johnsonville IL
 38.45°N 88.54°W
Last Update:
7:12 pm CDT Mar 26, 2026
Forecast Valid:
7pm CDT Mar 26, 2026-6pm CDT Apr 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation