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.

Overcast

23°F

-5°C

Humidity 57%
Wind Speed NE 3 mph
Barometer 30.30 in
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Last update 29 Jan 12:15 am CST
Extended Forecast for

4 Miles S Johnsonville IL

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 13. Light northeast wind.

    Low: 13 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 24. Northeast wind 3 to 6 mph.

    High: 24 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 20 percent chance of snow. Cloudy, with a low around 7. Wind chill values as low as -1. North northeast wind 3 to 5 mph.

    Low: 7 °F

    Slight Chance
    Snow

  • Friday

    Friday: Partly sunny, with a high near 19. Wind chill values as low as -2. North wind 5 to 9 mph.

    High: 19 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 4. North wind 6 to 9 mph, with gusts as high as 18 mph.

    Low: 4 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 16. North northwest wind 7 to 11 mph, with gusts as high as 18 mph.

    High: 16 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 4. Northwest wind 3 to 6 mph.

    Low: 4 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 24. Light and variable wind becoming west around 6 mph in the morning.

    High: 24 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 11. South southwest wind 3 to 5 mph.

    Low: 11 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 13. Light northeast wind.
Thursday
Mostly cloudy, with a high near 24. Northeast wind 3 to 6 mph.
Thursday Night
A 20 percent chance of snow. Cloudy, with a low around 7. Wind chill values as low as -1. North northeast wind 3 to 5 mph.
Friday
Partly sunny, with a high near 19. Wind chill values as low as -2. North wind 5 to 9 mph.
Friday Night
Mostly cloudy, with a low around 4. North wind 6 to 9 mph, with gusts as high as 18 mph.
Saturday
Mostly sunny, with a high near 16. North northwest wind 7 to 11 mph, with gusts as high as 18 mph.
Saturday Night
Partly cloudy, with a low around 4. Northwest wind 3 to 6 mph.
Sunday
Mostly sunny, with a high near 24. Light and variable wind becoming west around 6 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 11. South southwest wind 3 to 5 mph.
Monday
Partly sunny, with a high near 32. West southwest wind 5 to 7 mph.
Monday Night
Mostly cloudy, with a low around 19. Light southwest wind.
Tuesday
Partly sunny, with a high near 35. Calm wind becoming south southwest around 6 mph in the morning.
Tuesday Night
A chance of snow showers. Mostly cloudy, with a low around 24. South southeast wind 3 to 6 mph.
Wednesday
A chance of rain and snow showers. Mostly cloudy, with a high near 35. South southeast wind 5 to 7 mph becoming west southwest in the afternoon.
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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:
10:51 pm CST Jan 28, 2026
Forecast Valid:
12am CST Jan 29, 2026-6pm CST Feb 4, 2026
 
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Additional Resources

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National Digital Forecast Database Weather Element Forecast

Chance of Precipitation