Weather WorldJohnston City Lake, IL 7-Day Weather Forecast
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Johnston City Lake Weather Forecast
Johnston City Lake, IL Weather Forecast Date: 933 PM CST Tue Mar 03 2026
Weather forecast for Johnston City Lake, IL
Tonight Lo: 59°F Lo: 15°C |
Tonight... Mostly cloudy. A chance of showers and thunderstorms after midnight. Not as cool with lows in the upper 50s. South winds 10 to 15 mph. Chance of rain 50%. |
Wed Hi: 71°FHi: 22°C Lo: 59°F Lo: 15°C |
Wednesday... Showers likely with a chance of thunderstorms in the morning, then showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Southwest winds 5 to 10 mph. Chance of rain 80%. |
| Thu Hi: 71°FHi: 22°C Lo: 59°F Lo: 15°C |
Thursday... Showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the lower 70s. Southwest winds 5 to 10 mph. Chance of rain 90%. |
Fri Hi: 79°FHi: 26°C Lo: 61°F Lo: 16°C |
Friday... Partly sunny. Highs in the upper 70s. |
Sat Hi: 71°FHi: 22°C Lo: 49°F Lo: 9°C |
Saturday... Mostly cloudy. Showers, mainly in the morning. Highs in the lower 70s. Chance of rain 90%. |
Sun Hi: 69°FHi: 21°C Lo: 51°F Lo: 11°C |
Sunday... Partly cloudy. Lows in the upper 40s. Highs in the upper 60s. |
Mon Hi: 75°FHi: 24°C Lo: 59°F Lo: 15°C |
Monday... Mostly clear. Lows in the lower 50s. Highs in the mid 70s. |
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