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.

Fair

80°F

27°C

Humidity 43%
Wind Speed S 20 G 30 mph
Barometer 29.95 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 31 Mar 12:55 pm CDT
Extended Forecast for

4 Miles S Johnsonville IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 82. Breezy, with a southwest wind 18 to 20 mph, with gusts as high as 29 mph.

    High: 82 °F

    Partly Sunny
    and Breezy

  • Tonight

    Tonight: A slight chance of showers and thunderstorms, then a chance of showers after 10pm. Mostly cloudy, with a low around 63. South southwest wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.

    Low: 63 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. High near 78. South southwest wind 6 to 8 mph. Chance of precipitation is 80%.

    High: 78 °F

    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers, mainly before 7pm. Mostly cloudy, with a low around 65. South wind 7 to 13 mph, with gusts as high as 22 mph.

    Low: 65 °F

    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 79. Breezy, with a south wind 14 to 23 mph, with gusts as high as 33 mph. Chance of precipitation is 60%.

    High: 79 °F

    Breezy.
    Slight Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 63. South southwest wind 9 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.

    Low: 63 °F

    Showers

  • Friday

    Friday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 79. South wind 8 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.

    High: 79 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. South wind around 10 mph, with gusts as high as 21 mph.

    Low: 58 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: Showers and possibly a thunderstorm. Mostly cloudy, with a high near 69. South wind 10 to 14 mph becoming west in the afternoon. Winds could gust as high as 22 mph.

    High: 69 °F

    Showers

Detailed Forecast

This Afternoon
Partly sunny, with a high near 82. Breezy, with a southwest wind 18 to 20 mph, with gusts as high as 29 mph.
Tonight
A slight chance of showers and thunderstorms, then a chance of showers after 10pm. Mostly cloudy, with a low around 63. South southwest wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Wednesday
Showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. High near 78. South southwest wind 6 to 8 mph. Chance of precipitation is 80%.
Wednesday Night
A 30 percent chance of showers, mainly before 7pm. Mostly cloudy, with a low around 65. South wind 7 to 13 mph, with gusts as high as 22 mph.
Thursday
A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 79. Breezy, with a south wind 14 to 23 mph, with gusts as high as 33 mph. Chance of precipitation is 60%.
Thursday Night
Showers and possibly a thunderstorm. Low around 63. South southwest wind 9 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.
Friday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 79. South wind 8 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. South wind around 10 mph, with gusts as high as 21 mph.
Saturday
Showers and possibly a thunderstorm. Mostly cloudy, with a high near 69. South wind 10 to 14 mph becoming west in the afternoon. Winds could gust as high as 22 mph.
Saturday Night
A chance of showers, mainly before 1am. Mostly cloudy, with a low around 39. Northwest wind around 11 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 54. Northwest wind 10 to 13 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 34. North wind 3 to 7 mph.
Monday
Sunny, with a high near 60. Light and variable wind becoming east northeast around 6 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Johnsonville IL
 38.45°N 88.54°W
Last Update:
12:22 pm CDT Mar 31, 2026
Forecast Valid:
1pm CDT Mar 31, 2026-6pm CDT Apr 6, 2026
 
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