Alta, Illinois Weather
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Weather Forecast for Alta, Illinois : Peoria County
Issued: 6:55 am CDT Jun 17, 2025 Latitude: 40.8108703 Longitude: -89.6342645 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Wednesday Juneteenth Friday Saturday Sunday Monday
20% chance of thunderstorms on Today 60% chance of thunderstorms on Tonight 80% chance of thunderstorms on Wednesday Sunny on Juneteenth Mostly Sunny on Friday Sunny on Saturday Sunny on Sunday Sunny on Monday
High: 89°F Low: 69°F High: 82°F High: 84°F High: 89°F High: 94°F High: 94°F High: 94°F
Low: 63°F Low: 66°F Low: 74°F Low: 76°F Low: 75°F  
Thunderstorms Thunderstorms Thunderstorms Sunny Mostly Sunny Sunny Sunny Sunny
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Current Conditions at
PEORIA - (KPIA)
73°
Cloudy
Mist
as of 8:01 AM CDST
Rel. Humidity: 94%
Dew Point: 72°F
Visibility: 3 Miles
Pressure: 29.86 in.
Flight Rule: LIFR
Wind Data
8 MPH
200° South
Cloud Level(s): Solid Overcast at 400ft
Current Conditions at
LACON/MARSHALL COUNTY - (KC75)
73°
Mostly Cloudy
as of 7:55 AM CDST
Rel. Humidity: 88%
Dew Point: 70°F
Visibility: 10 Miles
Pressure: 29.84 in.
Flight Rule: IFR
Wind Data
8 MPH
190° South
Cloud Level(s): Broken at 600ft
Current Conditions at
GALESBURG - (KGBG)
73°
Clear
as of 7:55 AM CDST
Rel. Humidity: 83%
Dew Point: 68°F
Visibility: 10 Miles
Pressure: 29.84 in.
Flight Rule: VFR
Wind Data
7 MPH
190° South
Cloud Level(s): Clear
Current Conditions at
BLOOMINGTON - (KBMI)
72°
Mostly Cloudy
as of 7:56 AM CDST
Rel. Humidity: 100%
Dew Point: 72°F
Visibility: 10 Miles
Pressure: 29.90 in.
Flight Rule: VFR
Wind Data
10 MPH
190° South
Cloud Level(s): Scattered at 300ft, Broken at 11000ft
20% chance of thunderstorms Today Today... A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. Southwest wind 6 to 8 mph, with gusts as high as 15 mph.

60% chance of thunderstorms Tonight Tonight... Showers and thunderstorms likely, mainly after 4am. Mostly cloudy, with a low around 69. West wind 5 to 7 mph becoming south southeast in the evening. Winds could gust as high as 16 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

80% chance of thunderstorms Wednesday Wednesday... Showers and thunderstorms likely, then showers and possibly a thunderstorm after 7am. High near 82. South southeast wind 8 to 16 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

30% chance of thunderstorms Wednesday Night Wednesday Night... A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 63. West wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

Sunny on Juneteenth Juneteenth... Sunny, with a high near 84. West wind 6 to 9 mph.

Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 66. Southwest wind 3 to 6 mph.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 89. South southwest wind 6 to 14 mph, with gusts as high as 22 mph.

Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 74.

Sunny on Saturday Saturday... Sunny, with a high near 94.

Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 76.

Sunny on Sunday Sunday... Sunny, with a high near 94.

Clear on Sunday Night Sunday Night... Clear, with a low around 75.

Sunny on Monday Monday... Sunny, with a high near 94.

Current Radar Image


Sun Almanac for Alta, Illinois
Sunrise: 05:27 AM
Sunset: 8:33 PM
Civil Sunrise:04:53 AM
Civil Sunset: 9:06 PM
Nautical Sunrise: 04:10 AM
Nautical Sunset: 9:49 PM
Astro Sunrise: 03:20 AM
Astro Sunset: 10:39 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.