National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Fairfield, Fairfield Municipal Airport (KFWC)

Lat: 38.38°NLon: 88.41°WElev: 436ft.

Fair

62°F

17°C

Humidity 51%
Wind Speed S 8 mph
Barometer 30.17 in
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 10 Apr 1:35 am CDT
Extended Forecast for

4 Miles S Johnsonville IL

  • Overnight

    Overnight: Partly cloudy, with a low around 55. South southwest wind around 9 mph, with gusts as high as 18 mph.

    Low: 55 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 75. South southwest wind 8 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%.

    High: 75 °F

    Mostly Sunny
    then Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers before 11pm, then a slight chance of showers after 4am. Mostly cloudy, with a low around 50. North northwest wind around 6 mph becoming northeast after midnight. Chance of precipitation is 30%.

    Low: 50 °F

    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers between 7am and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 73. East southeast wind around 6 mph. Chance of precipitation is 20%.

    High: 73 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 58. South wind 5 to 7 mph.

    Low: 58 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 81. South southwest wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph.

    High: 81 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Mostly cloudy, with a low around 64. South southwest wind around 13 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.

    Low: 64 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 81. South southwest wind 13 to 16 mph, with gusts as high as 24 mph.

    High: 81 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 67. South southwest wind around 11 mph, with gusts as high as 21 mph.

    Low: 67 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Partly cloudy, with a low around 55. South southwest wind around 9 mph, with gusts as high as 18 mph.
Friday
A chance of showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 75. South southwest wind 8 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%.
Friday Night
A chance of showers before 11pm, then a slight chance of showers after 4am. Mostly cloudy, with a low around 50. North northwest wind around 6 mph becoming northeast after midnight. Chance of precipitation is 30%.
Saturday
A slight chance of showers between 7am and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 73. East southeast wind around 6 mph. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 58. South wind 5 to 7 mph.
Sunday
Partly sunny, with a high near 81. South southwest wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph.
Sunday Night
A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Mostly cloudy, with a low around 64. South southwest wind around 13 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 81. South southwest wind 13 to 16 mph, with gusts as high as 24 mph.
Monday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 67. South southwest wind around 11 mph, with gusts as high as 21 mph.
Tuesday
A chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 85. South southwest wind 10 to 17 mph, with gusts as high as 25 mph.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. South southwest wind 11 to 13 mph, with gusts as high as 22 mph.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 84. Southwest wind 11 to 16 mph, with gusts as high as 23 mph.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 61. Southwest wind 6 to 9 mph.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 79. South wind 6 to 11 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:
1:26 am CDT Apr 10, 2026
Forecast Valid:
1am CDT Apr 10, 2026-6pm CDT Apr 16, 2026
 
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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