Weather World
Alta, IL 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Alta, IL Weather Forecast
Alta, IL Weather Forecast Date: 337 PM CDT Wed Sep 16 2026
The area/counties/county of: Peoria, including the city of Peoria.or toggle through each period.
Tonight... Partly cloudy this evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the upper 60s. East winds around 5 mph. Chance of rain 50%.
Thursday... Mostly cloudy with showers likely with a chance of thunderstorms in the morning, then partly sunny in the afternoon. Humid with highs in the mid 80s. East winds around 5 mph, becoming northwest around 5 mph in the afternoon. Chance of rain 70%.
Thursday Night... Partly cloudy in the evening, then mostly cloudy with a slight chance of showers after midnight. Lows in the mid 60s. Northeast winds around 5 mph. Chance of rain 20%.
Friday... Mostly cloudy with a chance of showers in the morning, then mostly sunny in the afternoon. Highs in the mid 80s. East winds 5 to 10 mph. Chance of rain 40%.
Friday Night... Partly cloudy. Lows in the upper 60s. Southeast winds 5 to 10 mph, becoming south with gusts up to 20 mph after midnight.
Saturday... Partly sunny. A chance of showers in the afternoon. Highs in the upper 80s. Chance of rain 40%.
Saturday Night... A chance of thunderstorms. Showers likely. Lows in the upper 60s. Chance of rain 70%.
Sunday... Mostly cloudy with a chance of showers and thunderstorms. Highs in the upper 70s. Lows in the lower 60s. Chance of rain 50%.
Sunday Night... Mostly cloudy with a chance of showers and thunderstorms. Highs in the upper 70s. Lows in the lower 60s. Chance of rain 50%.
Monday... Mostly cloudy with a chance of showers. Highs in the mid 70s. Chance of rain 50%.
Monday Night... Mostly cloudy. A chance of showers in the evening. Lows in the upper 50s. Chance of rain 50%.
Tuesday... Partly sunny. Highs in the lower 70s.
Tuesday Night... Partly cloudy. Lows in the upper 50s. Highs in the mid 70s.
POP = Probability of Precipitation
Alta Radar Loop
Use the map search tool if you want to place a location marker on the radar map...