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.

Partly Cloudy

29°F

-2°C

Humidity 90%
Wind Speed Calm
Barometer 30.31 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 12 Feb 6:35 am CST
Extended Forecast for

4 Miles S Johnsonville IL

  • Today

    Today: Mostly cloudy, with a high near 49. Calm wind becoming southeast around 5 mph.

    High: 49 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 29. Light east southeast wind.

    Low: 29 °F

    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 54. Calm wind becoming south 5 to 7 mph.

    High: 54 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 34. Calm wind.

    Low: 34 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A 50 percent chance of rain, mainly after noon. Cloudy, with a high near 53. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 53 °F

    Slight Chance
    Rain then
    Chance Rain

  • Saturday Night

    Saturday Night: Rain. Low around 43. East southeast wind 5 to 7 mph. Chance of precipitation is 80%.

    Low: 43 °F

    Rain

  • Sunday

    Sunday: A 40 percent chance of rain, mainly before noon. Partly sunny, with a high near 55. Northeast wind 6 to 10 mph.

    High: 55 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 35. North wind around 5 mph becoming calm in the evening.

    Low: 35 °F

    Mostly Clear

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 58. Calm wind becoming south around 6 mph in the morning.

    High: 58 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 49. Calm wind becoming southeast around 5 mph.
Tonight
Mostly cloudy, with a low around 29. Light east southeast wind.
Friday
Sunny, with a high near 54. Calm wind becoming south 5 to 7 mph.
Friday Night
Increasing clouds, with a low around 34. Calm wind.
Saturday
A 50 percent chance of rain, mainly after noon. Cloudy, with a high near 53. Calm wind becoming southeast around 6 mph in the afternoon.
Saturday Night
Rain. Low around 43. East southeast wind 5 to 7 mph. Chance of precipitation is 80%.
Sunday
A 40 percent chance of rain, mainly before noon. Partly sunny, with a high near 55. Northeast wind 6 to 10 mph.
Sunday Night
Mostly clear, with a low around 35. North wind around 5 mph becoming calm in the evening.
Washington's Birthday
Mostly sunny, with a high near 58. Calm wind becoming south around 6 mph in the morning.
Monday Night
Mostly cloudy, with a low around 42. South wind 3 to 6 mph.
Tuesday
Mostly cloudy, with a high near 62. South wind 6 to 14 mph, with gusts as high as 22 mph.
Tuesday Night
Mostly cloudy, with a low around 54. South southwest wind 11 to 14 mph, with gusts as high as 25 mph.
Wednesday
A slight chance of rain. Mostly cloudy, with a high near 64. West southwest wind 10 to 16 mph, with gusts as high as 24 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Johnsonville IL
 38.45°N 88.54°W
Last Update:
5:06 am CST Feb 12, 2026
Forecast Valid:
6am CST Feb 12, 2026-6pm CST Feb 18, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation