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.

Mostly Cloudy

79°F

26°C

Humidity 63%
Wind Speed S 16 G 23 mph
Barometer 29.87 in
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 10 Mar 2:35 pm CDT
Extended Forecast for

Fairfield IL

  • This Afternoon

    This Afternoon: A 10 percent chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 78. South southwest wind around 14 mph, with gusts as high as 23 mph.

    High: 78 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 62. South southwest wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.

    Low: 62 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers and thunderstorms before 3pm, then showers likely. Temperature rising to near 70 by noon, then falling to around 53 during the remainder of the day. Breezy, with a southwest wind 16 to 21 mph becoming northwest in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 100%.

    High: 70 °F⇓

    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 32. North northwest wind 9 to 18 mph, with gusts as high as 28 mph.

    Low: 32 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 52. North northwest wind around 6 mph becoming west southwest in the afternoon.

    High: 52 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 40. South wind 5 to 10 mph increasing to 11 to 16 mph after midnight. Winds could gust as high as 28 mph.

    Low: 40 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 61. Southwest wind 11 to 17 mph, with gusts as high as 28 mph.

    High: 61 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 37. West northwest wind around 6 mph becoming light and variable.

    Low: 37 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 64. East wind 6 to 10 mph becoming south southeast in the afternoon.

    High: 64 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 10 percent chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 78. South southwest wind around 14 mph, with gusts as high as 23 mph.
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 62. South southwest wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Wednesday
Showers and thunderstorms before 3pm, then showers likely. Temperature rising to near 70 by noon, then falling to around 53 during the remainder of the day. Breezy, with a southwest wind 16 to 21 mph becoming northwest in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 100%.
Wednesday Night
Mostly cloudy, with a low around 32. North northwest wind 9 to 18 mph, with gusts as high as 28 mph.
Thursday
Sunny, with a high near 52. North northwest wind around 6 mph becoming west southwest in the afternoon.
Thursday Night
Partly cloudy, with a low around 40. South wind 5 to 10 mph increasing to 11 to 16 mph after midnight. Winds could gust as high as 28 mph.
Friday
Partly sunny, with a high near 61. Southwest wind 11 to 17 mph, with gusts as high as 28 mph.
Friday Night
Mostly cloudy, with a low around 37. West northwest wind around 6 mph becoming light and variable.
Saturday
Mostly sunny, with a high near 64. East wind 6 to 10 mph becoming south southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 52. South southeast wind 7 to 13 mph, with gusts as high as 23 mph.
Sunday
Showers and thunderstorms likely. Partly sunny, with a high near 66. Breezy, with a south wind 14 to 21 mph becoming west in the afternoon. Winds could gust as high as 30 mph.
Sunday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 23. Northwest wind 15 to 18 mph, with gusts as high as 28 mph.
Monday
Mostly sunny, with a high near 35. Northwest wind 11 to 14 mph, with gusts as high as 23 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fairfield IL
 38.38°N 88.37°W
Last Update:
2:06 pm CDT Mar 10, 2026
Forecast Valid:
2pm CDT Mar 10, 2026-6pm CDT Mar 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation