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Alta, IL 7-Day Weather Forecast
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Alta Weather Forecast
Alta, IL Weather Forecast Date: 1237 PM CDT Tue Sep 08 2026
Weather forecast for Alta, IL
Today Hi: 89°FHi: 32°C Lo: 71°F Lo: 22°C |
This Afternoon... Mostly sunny. Highs in the upper 80s. South winds 5 to 10 mph. |
Wed Hi: 85°FHi: 29°C Lo: 65°F Lo: 18°C |
Wednesday... Partly sunny with showers likely with a slight chance of thunderstorms in the morning, then mostly cloudy with a chance of showers and thunderstorms in the afternoon. Humid with highs in the mid 80s. West winds 5 to 10 mph. Chance of rain 70%. |
Thu Hi: 81°FHi: 27°C Lo: 59°F Lo: 15°C |
Thursday... Partly sunny in the morning, then clearing. Highs in the lower 80s. North winds around 5 mph. |
| Fri Hi: 81°FHi: 27°C Lo: 65°F Lo: 18°C |
Friday... Sunny. Highs in the lower 80s. |
Sat Hi: 85°FHi: 29°C Lo: 61°F Lo: 16°C |
Saturday... Partly sunny. A chance of showers in the morning. Highs in the mid 80s. Chance of rain 40%. |
| Sun Hi: 85°FHi: 29°C Lo: 65°F Lo: 18°C |
Sunday... Partly sunny with a 40% chance of showers. Highs in the mid 80s. |
Mon Hi: 81°FHi: 27°C Lo: 65°F Lo: 18°C |
Monday... Partly cloudy. A chance of showers. Lows in the mid 60s. Highs in the lower 80s. Chance of rain 40%. |
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