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.

Fair

57°F

14°C

Humidity 38%
Wind Speed SW 12 G 17 mph
Barometer 30.04 in
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 18 Mar 2:35 pm CDT
Extended Forecast for

Sims IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 58. Southwest wind around 11 mph, with gusts as high as 20 mph.

    High: 58 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 41. South wind 3 to 5 mph.

    Low: 41 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy through mid morning, then gradual clearing, with a high near 70. Light and variable wind becoming southwest around 6 mph in the morning.

    High: 70 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 46. Calm wind.

    Low: 46 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 76. Calm wind becoming west southwest 5 to 8 mph in the morning.

    High: 76 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 50. West southwest wind 3 to 5 mph.

    Low: 50 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 76. West northwest wind 3 to 5 mph.

    High: 76 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55. South southwest wind 3 to 6 mph.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 81. South southwest wind 7 to 13 mph becoming west in the afternoon. Winds could gust as high as 21 mph.

    High: 81 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 58. Southwest wind around 11 mph, with gusts as high as 20 mph.
Tonight
Increasing clouds, with a low around 41. South wind 3 to 5 mph.
Thursday
Mostly cloudy through mid morning, then gradual clearing, with a high near 70. Light and variable wind becoming southwest around 6 mph in the morning.
Thursday Night
Mostly clear, with a low around 46. Calm wind.
Friday
Mostly sunny, with a high near 76. Calm wind becoming west southwest 5 to 8 mph in the morning.
Friday Night
Partly cloudy, with a low around 50. West southwest wind 3 to 5 mph.
Saturday
Mostly sunny, with a high near 76. West northwest wind 3 to 5 mph.
Saturday Night
Mostly clear, with a low around 55. South southwest wind 3 to 6 mph.
Sunday
Sunny, with a high near 81. South southwest wind 7 to 13 mph becoming west in the afternoon. Winds could gust as high as 21 mph.
Sunday Night
Mostly cloudy, with a low around 38. North wind 11 to 13 mph, with gusts as high as 22 mph.
Monday
Partly sunny, with a high near 53. North northeast wind 9 to 11 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 33. East northeast wind around 6 mph.
Tuesday
Partly sunny, with a high near 59. East southeast wind around 6 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sims IL
 38.37°N 88.54°W
Last Update:
1:26 pm CDT Mar 18, 2026
Forecast Valid:
2pm CDT Mar 18, 2026-6pm CDT Mar 24, 2026
 
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Additional Resources

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