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.

Overcast

49°F

9°C

Humidity 88%
Wind Speed NE 3 mph
Barometer 29.96 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 27 Dec 1:35 am CST
Extended Forecast for

Fairfield IL

  • Overnight

    Overnight: Patchy fog after 2am. Otherwise, mostly cloudy, with a steady temperature around 48. North wind around 5 mph.

    Low: 48 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 63. Southeast wind 5 to 8 mph.

    High: 63 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Saturday Night

    Saturday Night: Cloudy, with a temperature falling to near 59 by 8pm, then rising to around 64 during the remainder of the night. South wind 7 to 10 mph, with gusts as high as 18 mph.

    Low: 59 °F⇑

    Cloudy

  • Sunday

    Sunday: Showers likely, mainly between noon and 5pm. Mostly cloudy, with a high near 72. South southwest wind 10 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 70%.

    High: 72 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Rain showers before midnight, then a slight chance of rain and snow showers between midnight and 3am, then a slight chance of rain showers after 3am. Low around 21. Breezy, with a south southwest wind 17 to 20 mph becoming west northwest in the evening. Winds could gust as high as 33 mph. Chance of precipitation is 90%.

    Low: 21 °F

    Showers and
    Breezy then
    Slight Chance
    Rain/Snow and
    Blustery

  • Monday

    Monday: Mostly sunny, with a high near 27. Blustery, with a west northwest wind 15 to 21 mph, with gusts as high as 32 mph.

    High: 27 °F

    Mostly Sunny
    and Blustery
    then Partly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 17. Northwest wind 9 to 14 mph, with gusts as high as 24 mph.

    Low: 17 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 31. West northwest wind 6 to 9 mph.

    High: 31 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 23. West southwest wind 5 to 7 mph.

    Low: 23 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog after 2am. Otherwise, mostly cloudy, with a steady temperature around 48. North wind around 5 mph.
Saturday
Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 63. Southeast wind 5 to 8 mph.
Saturday Night
Cloudy, with a temperature falling to near 59 by 8pm, then rising to around 64 during the remainder of the night. South wind 7 to 10 mph, with gusts as high as 18 mph.
Sunday
Showers likely, mainly between noon and 5pm. Mostly cloudy, with a high near 72. South southwest wind 10 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 70%.
Sunday Night
Rain showers before midnight, then a slight chance of rain and snow showers between midnight and 3am, then a slight chance of rain showers after 3am. Low around 21. Breezy, with a south southwest wind 17 to 20 mph becoming west northwest in the evening. Winds could gust as high as 33 mph. Chance of precipitation is 90%.
Monday
Mostly sunny, with a high near 27. Blustery, with a west northwest wind 15 to 21 mph, with gusts as high as 32 mph.
Monday Night
Partly cloudy, with a low around 17. Northwest wind 9 to 14 mph, with gusts as high as 24 mph.
Tuesday
Sunny, with a high near 31. West northwest wind 6 to 9 mph.
Tuesday Night
Mostly clear, with a low around 23. West southwest wind 5 to 7 mph.
Wednesday
Mostly sunny, with a high near 42. West wind 7 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 24. West wind around 6 mph.
New Year's Day
Mostly sunny, with a high near 34. North northwest wind 5 to 8 mph.
Thursday Night
Mostly clear, with a low around 15. Light north northwest wind.
Friday
Partly sunny, with a high near 31. West northwest wind around 6 mph becoming calm in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fairfield IL
 38.38°N 88.37°W
Last Update:
1:11 am CST Dec 27, 2025
Forecast Valid:
1am CST Dec 27, 2025-6pm CST Jan 2, 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