Hazardous Weather Conditions
Current conditions at
Fairfield, Fairfield Municipal Airport (KFWC)
Lat: 38.38°NLon: 88.41°WElev: 436ft.
Fair
89°F
32°C
| Humidity | 58% |
| Wind Speed | Calm |
| Barometer | 29.95 in |
| Dewpoint | 72°F (22°C) |
| Visibility | 10.00 mi |
| Heat Index | 96°F (36°C) |
| Last update | 16 Aug 6:35 pm CDT |
Extended Forecast for
Fairfield IL
Extreme Heat Warning August 16, 06:46pm until August 16, 08:00pm
NOW until 8:00pm Sun
Extreme Heat Warning
Tonight
Low: 71 °F
Severe
ThunderstormsMonday
High: 85 °F
Chance
Showers then
Mostly SunnyMonday Night
Low: 64 °F
Partly Cloudy
Tuesday
High: 86 °F
Sunny
Tuesday Night
Low: 67 °F
Mostly Clear
Wednesday
High: 87 °F
Showers
LikelyWednesday Night
Low: 66 °F
Chance
T-storms then
Showers
LikelyThursday
High: 82 °F
Chance
T-storms
Detailed Forecast
Tonight
A chance of showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 4am, then a chance of showers and thunderstorms after 4am. Some of the storms could be severe. Mostly cloudy, with a low around 71. Calm wind becoming north northwest around 6 mph. Chance of precipitation is 60%.
Monday
A chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 9am. Mostly sunny, with a high near 85. North northwest wind 3 to 8 mph. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 64. North wind 5 to 8 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 86. Calm wind.
Tuesday Night
Mostly clear, with a low around 67. Calm wind.
Wednesday
Showers likely and possibly a thunderstorm before 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 87. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 60%.
Wednesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 66. Northeast wind 3 to 5 mph. Chance of precipitation is 60%.
Thursday
A chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 82. Northeast wind around 6 mph.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 62. Northeast wind around 5 mph becoming calm in the evening.
Friday
A slight chance of showers, with thunderstorms also possible after 8am. Mostly sunny, with a high near 83. Calm wind becoming north northeast around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 61. Calm wind.
Saturday
Sunny, with a high near 84. Calm wind becoming northwest around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 62. Light north wind.
Sunday
Sunny, with a high near 84. Calm wind becoming north around 5 mph in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Fairfield IL
38.38°N 88.37°W
38.38°N 88.37°W
5:56 pm CDT Aug 16, 2026
6pm CDT Aug 16, 2026-6pm CDT Aug 23, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
