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.

Light Rain

59°F

15°C

Humidity 94%
Wind Speed SW 6 mph
Barometer 29.93 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 7 Mar 6:15 am CST
Extended Forecast for

Fairfield IL

  • Today

    Today: Showers and thunderstorms, mainly before 4pm. Temperature rising to near 69 by noon, then falling to around 61 during the remainder of the day. Southwest wind 11 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%.

    High: 69 °F⇓

    Showers then
    Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 40. West northwest wind 5 to 10 mph becoming light northwest after midnight. Winds could gust as high as 18 mph.

    Low: 40 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 63. Calm wind becoming southwest around 6 mph.

    High: 63 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 45. South southwest wind 3 to 6 mph.

    Low: 45 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 73. South southwest wind 6 to 14 mph, with gusts as high as 22 mph.

    High: 73 °F

    Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms after midnight. Partly cloudy, with a low around 60. South southwest wind 8 to 10 mph, with gusts as high as 20 mph.

    Low: 60 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 76. South southwest wind 8 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.

    High: 76 °F

    Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Cloudy, with a low around 59. South southwest wind 15 to 18 mph, with gusts as high as 31 mph.

    Low: 59 °F

    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. Cloudy, with a high near 68. Breezy, with a south southwest wind 16 to 20 mph becoming north northwest in the afternoon. Winds could gust as high as 31 mph.

    High: 68 °F

    Showers and
    Breezy

Detailed Forecast

Today
Showers and thunderstorms, mainly before 4pm. Temperature rising to near 69 by noon, then falling to around 61 during the remainder of the day. Southwest wind 11 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 40. West northwest wind 5 to 10 mph becoming light northwest after midnight. Winds could gust as high as 18 mph.
Sunday
Sunny, with a high near 63. Calm wind becoming southwest around 6 mph.
Sunday Night
Clear, with a low around 45. South southwest wind 3 to 6 mph.
Monday
Sunny, with a high near 73. South southwest wind 6 to 14 mph, with gusts as high as 22 mph.
Monday Night
A 20 percent chance of showers and thunderstorms after midnight. Partly cloudy, with a low around 60. South southwest wind 8 to 10 mph, with gusts as high as 20 mph.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 76. South southwest wind 8 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.
Tuesday Night
Showers and possibly a thunderstorm. Cloudy, with a low around 59. South southwest wind 15 to 18 mph, with gusts as high as 31 mph.
Wednesday
Showers and possibly a thunderstorm. Cloudy, with a high near 68. Breezy, with a south southwest wind 16 to 20 mph becoming north northwest in the afternoon. Winds could gust as high as 31 mph.
Wednesday Night
A slight chance of showers before midnight. Mostly cloudy, with a low around 35. North northwest wind 7 to 15 mph, with gusts as high as 22 mph.
Thursday
Mostly sunny, with a high near 51. Northwest wind 5 to 9 mph.
Thursday Night
Mostly cloudy, with a low around 38. West wind 5 to 11 mph becoming south in the evening. Winds could gust as high as 23 mph.
Friday
Mostly cloudy, with a high near 62. South southwest wind 11 to 18 mph, with gusts as high as 26 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Fairfield IL
 38.38°N 88.37°W
Last Update:
12:26 am CST Mar 7, 2026
Forecast Valid:
6am CST Mar 7, 2026-6pm CDT Mar 13, 2026
 
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Additional Resources

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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