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.

Partly Cloudy

70°F

21°C

Humidity 72%
Wind Speed NE 5 mph
Barometer 30.07 in
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 29 Aug 9:55 pm CDT
Extended Forecast for

Sims IL

  • Tonight

    Tonight: Mostly clear, with a low around 55. Calm wind.

    Low: 55 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 83. Calm wind becoming northeast 5 to 7 mph in the morning.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 57. East northeast wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 81. East northeast wind 3 to 8 mph.

    High: 81 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 55. Northeast wind around 6 mph becoming calm in the evening.

    Low: 55 °F

    Mostly Cloudy

  • Labor Day

    Labor Day: Partly sunny, with a high near 81. Calm wind becoming east northeast around 6 mph in the morning.

    High: 81 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 58. Light east northeast wind.

    Low: 58 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 79. Calm wind becoming east southeast around 6 mph in the afternoon.

    High: 79 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Light south southeast wind.

    Low: 59 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 55. Calm wind.
Saturday
Sunny, with a high near 83. Calm wind becoming northeast 5 to 7 mph in the morning.
Saturday Night
Partly cloudy, with a low around 57. East northeast wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 81. East northeast wind 3 to 8 mph.
Sunday Night
Mostly cloudy, with a low around 55. Northeast wind around 6 mph becoming calm in the evening.
Labor Day
Partly sunny, with a high near 81. Calm wind becoming east northeast around 6 mph in the morning.
Monday Night
Mostly cloudy, with a low around 58. Light east northeast wind.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 79. Calm wind becoming east southeast around 6 mph in the afternoon.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Light south southeast wind.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 79. Calm wind becoming west northwest 5 to 8 mph in the morning.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 52. North northwest wind around 6 mph.
Thursday
Mostly sunny, with a high near 72. Northwest wind 6 to 10 mph.
Thursday Night
Partly cloudy, with a low around 46. Northwest wind around 6 mph becoming calm in the evening.
Friday
Sunny, with a high near 77. Light west wind increasing to 5 to 9 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sims IL
 38.37°N 88.54°W
Last Update:
9:46 pm CDT Aug 29, 2025
Forecast Valid:
10pm CDT Aug 29, 2025-6pm CDT Sep 5, 2025
 
Forecast Discussion
 
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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