Weather WorldFairfield, IL 7-Day Weather Forecast
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Fairfield Weather Forecast
Fairfield, IL Weather Forecast Date: 632 PM CDT Wed Oct 21 2026
Weather forecast for Fairfield, IL
Tonight Lo: 45°F Lo: 7°C |
Tonight... Clear. Lows in the mid 40s. Calm winds. |
Thu Hi: 75°FHi: 24°C Lo: 45°F Lo: 7°C |
Thursday... Patchy fog in the morning. Sunny. Highs in the mid 70s. Calm winds, becoming northeast around 5 mph in the afternoon. |
Fri Hi: 75°FHi: 24°C Lo: 49°F Lo: 9°C |
Friday... Sunny. Highs in the mid 70s. East winds around 5 mph. |
Sat Hi: 75°FHi: 24°C Lo: 49°F Lo: 9°C |
Saturday... Partly cloudy. Highs in the mid 70s. Lows in the upper 40s. |
| Sun Hi: 75°FHi: 24°C Lo: 49°F Lo: 9°C |
Sunday... Partly cloudy. Highs in the mid 70s. Lows in the upper 40s. |
| Sun Hi: 75°FHi: 24°C Lo: 49°F Lo: 9°C |
Sunday... Partly cloudy. Highs in the mid 70s. Lows in the upper 40s. |
Mon Hi: 75°FHi: 24°C Lo: 49°F Lo: 9°C |
Monday... Mostly cloudy. Highs in the mid 70s. Lows in the upper 40s. |
| Tue Hi: 75°FHi: 24°C Lo: 49°F Lo: 9°C |
Tuesday... Mostly cloudy. Highs in the mid 70s. Lows in the upper 40s. |
| Tue Hi: 75°FHi: 24°C Lo: 49°F Lo: 9°C |
Tuesday... Mostly cloudy. Highs in the mid 70s. Lows in the upper 40s. |
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