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Lyndon, IL 7-Day Weather Forecast
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Lyndon Weather Forecast
Lyndon, IL Weather Forecast Date: 251 PM CDT Thu Sep 10 2026
Weather forecast for Lyndon, IL
Today Hi: 79°FHi: 26°C Lo: 59°F Lo: 15°C |
This Afternoon... Mostly sunny. Near steady temperature in the upper 70s. North winds around 5 mph. |
| Fri Hi: 81°FHi: 27°C Lo: 65°F Lo: 18°C |
Friday... Sunny. Highs in the lower 80s. Southeast winds 5 to 10 mph. |
Sat Hi: 85°FHi: 29°C Lo: 59°F Lo: 15°C |
Saturday... Partly sunny. Humid with highs in the mid 80s. Southwest winds 5 to 10 mph, becoming west in the afternoon. |
Sun Hi: 79°FHi: 26°C Lo: 59°F Lo: 15°C |
Sunday... Partly sunny. A chance of showers in the afternoon. Highs in the upper 70s. Chance of rain 40%. |
Mon Hi: 81°FHi: 27°C Lo: 65°F Lo: 18°C |
Monday... A chance of showers in the morning. Partly sunny. Highs in the lower 80s. Chance of rain 50%. |
| Tue Hi: 80°FHi: 27°C Lo: 59°F Lo: 15°C |
Tuesday... Partly sunny in the morning, then becoming mostly cloudy. A 50% chance of showers. Highs around 80. |
| Wed Hi: 71°FHi: 22°C |
Wednesday... Mostly cloudy with a 50% chance of showers. Highs in the lower 70s. |
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