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

65°F

18°C

Humidity 32%
Wind Speed S 8 mph
Barometer 30.08 in
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 25 Mar 11:55 am CDT
Extended Forecast for

4 Miles S Johnsonville IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 73. South southwest wind 9 to 11 mph, with gusts as high as 18 mph.

    High: 73 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of showers before 1am, then a slight chance of showers and thunderstorms between 1am and 3am. Partly cloudy, with a low around 61. South wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    Low: 61 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday

    Thursday: Sunny, with a high near 85. South southwest wind 11 to 18 mph, with gusts as high as 28 mph.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers before 10pm, then a slight chance of showers and thunderstorms between 10pm and 1am, then showers and possibly a thunderstorm after 1am. Low around 45. South southwest wind 13 to 15 mph becoming north after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 80%.

    Low: 45 °F

    Slight Chance
    T-storms then
    Showers

  • Friday

    Friday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm. Mostly cloudy, with a high near 52. North wind around 16 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

    High: 52 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 31. North wind 6 to 10 mph, with gusts as high as 20 mph.

    Low: 31 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 54. Light and variable wind becoming northeast around 6 mph in the morning.

    High: 54 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 38. East southeast wind 3 to 5 mph.

    Low: 38 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 64. South wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 64 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 73. South southwest wind 9 to 11 mph, with gusts as high as 18 mph.
Tonight
A slight chance of showers before 1am, then a slight chance of showers and thunderstorms between 1am and 3am. Partly cloudy, with a low around 61. South wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Thursday
Sunny, with a high near 85. South southwest wind 11 to 18 mph, with gusts as high as 28 mph.
Thursday Night
A slight chance of showers before 10pm, then a slight chance of showers and thunderstorms between 10pm and 1am, then showers and possibly a thunderstorm after 1am. Low around 45. South southwest wind 13 to 15 mph becoming north after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 80%.
Friday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm. Mostly cloudy, with a high near 52. North wind around 16 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Friday Night
Mostly clear, with a low around 31. North wind 6 to 10 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 54. Light and variable wind becoming northeast around 6 mph in the morning.
Saturday Night
Partly cloudy, with a low around 38. East southeast wind 3 to 5 mph.
Sunday
Partly sunny, with a high near 64. South wind 6 to 11 mph, with gusts as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around 52. South wind 8 to 10 mph, with gusts as high as 20 mph.
Monday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 75. South southwest wind 10 to 15 mph, with gusts as high as 22 mph.
Monday Night
A slight chance of showers. Mostly cloudy, with a low around 60. South southwest wind 8 to 10 mph, with gusts as high as 21 mph.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 77. South southwest wind 10 to 16 mph, with gusts as high as 23 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Johnsonville IL
 38.45°N 88.54°W
Last Update:
12:06 pm CDT Mar 25, 2026
Forecast Valid:
12pm CDT Mar 25, 2026-6pm CDT Mar 31, 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