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Arlington Heights, IL 7-Day Weather Forecast
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Arlington Heights Weather Forecast
Arlington Heights, IL Weather Forecast Date: 829 PM CST Mon Mar 02 2026
Weather forecast for Arlington Heights, IL
Tonight Lo: 30°F Lo: -1°C |
Tonight... Partly cloudy early in the evening, then becoming mostly cloudy. Near steady temperature in the lower 30s. East winds 5 to 10 mph. |
Tue Hi: 45°FHi: 7°C Lo: 31°F Lo: -1°C |
Tuesday... Mostly cloudy. A chance of rain, mainly in the morning. Highs in the mid 40s inland, but only around 40 near the lake. East winds around 5 mph. Chance of precipitation 30%. |
| Wed Hi: 49°FHi: 9°C Lo: 40°F Lo: 4°C |
Wednesday... Mostly cloudy. A slight chance of rain showers in the morning, then a chance of rain showers in the afternoon. Highs in the upper 40s inland, but only in the lower 40s near the lake. East winds 5 to 10 mph. Chance of precipitation 30%. |
Thu Hi: 55°FHi: 13°C Lo: 41°F Lo: 5°C |
Thursday... Showers. Highs in the mid 50s inland, but only in the upper 40s near the lake. Chance of precipitation 80%. |
| Fri Hi: 65°FHi: 18°C Lo: 51°F Lo: 11°C |
Friday... Showers likely. Highs in the mid 60s. Chance of precipitation 70%. |
| Sat Hi: 65°FHi: 18°C Lo: 40°F Lo: 4°C |
Saturday... Mostly cloudy. A chance of showers in the morning. Highs in the mid 60s. Temperature falling into the mid 50s in the afternoon. Chance of precipitation 50%. |
Sun Hi: 60°FHi: 16°C Lo: 41°F Lo: 5°C |
Sunday... Partly cloudy. Highs around 60. |
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