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Highland Lake, IL 7-Day Weather Forecast
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Highland Lake Weather Forecast
Highland Lake, IL Weather Forecast Date: 341 AM CDT Fri Aug 07 2026
Weather forecast for Highland Lake, IL
Morning Hi: 69°FHi: 21°C |
Early This Morning... Partly cloudy. Patchy fog. Temperatures in the upper 60s. Southwest winds around 5 mph. |
| Today Hi: 85°FHi: 29°C Lo: 69°F Lo: 21°C |
Today... Partly cloudy. Patchy fog early in the morning. Humid. Highs in the mid 80s. Southwest winds 5 to 10 mph. |
Sat Hi: 81°FHi: 27°C Lo: 61°F Lo: 16°C |
Saturday... Partly cloudy in the morning, then becoming sunny. Highs in the lower 80s. Northwest winds 5 to 10 mph. |
Sun Hi: 81°FHi: 27°C Lo: 69°F Lo: 21°C |
Sunday... Mostly cloudy. A slight chance of thunderstorms in the morning. A chance of showers. A chance of thunderstorms in the afternoon. Humid with highs in the lower 80s. South winds 5 to 10 mph. Chance of precipitation 50%. |
| Mon Hi: 81°FHi: 27°C Lo: 65°F Lo: 18°C |
Monday... Showers likely with a chance of thunderstorms. Highs in the lower 80s. Chance of precipitation 70%. |
| Tue Hi: 79°FHi: 26°C Lo: 61°F Lo: 16°C |
Tuesday... Mostly cloudy with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of precipitation 50%. |
| Wed Hi: 79°FHi: 26°C Lo: 61°F Lo: 16°C |
Wednesday... Mostly cloudy with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of precipitation 40%. |
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