Alpha, Illinois Weather
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Weather Forecast for Alpha, Illinois : Henry County
Issued: 9:01 am CDT Jun 17, 2025 Latitude: 41.1917031 Longitude: -90.3801274 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Wednesday Juneteenth Friday Saturday Sunday Monday
30% chance of thunderstorms on Today 80% chance of thunderstorms on Tonight 90% chance of thunderstorms on Wednesday Sunny on Juneteenth Mostly Sunny on Friday Sunny on Saturday Sunny on Sunday Sunny on Monday
High: 87°F Low: 68°F High: 79°F High: 84°F High: 89°F High: 93°F High: 94°F High: 92°F
Low: 62°F Low: 66°F Low: 74°F Low: 75°F Low: 74°F  
Thunderstorms Thunderstorms Thunderstorms Sunny Mostly Sunny Sunny Sunny Sunny
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Current Conditions at
GALESBURG - (KGBG)
77°
Clear
as of 8:35 AM CDST
Rel. Humidity: 73%
Dew Point: 68°F
Visibility: 10 Miles
Pressure: 29.84 in.
Flight Rule: VFR
Wind Data
9 MPH
180° South
Cloud Level(s): Clear
Current Conditions at
MUSCATINE - (KMUT)
77°
Clear
as of 8:35 AM CDST
Rel. Humidity: 100%
Dew Point: 77°F
Visibility: 10 Miles
Pressure: 29.82 in.
Flight Rule: VFR
Wind Data
3 MPH
210° Southwest
Cloud Level(s): Clear
30% chance of thunderstorms Today Today... A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 87. Southwest wind around 10 mph.

80% chance of thunderstorms Tonight Tonight... Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5am. Low around 68. Southwest wind around 5 mph becoming northwest in the evening. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

90% chance of thunderstorms Wednesday Wednesday... Showers and thunderstorms likely before 7am, then showers and possibly a thunderstorm between 7am and 1pm, then showers and thunderstorms likely after 1pm. High near 79. Southeast wind 10 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

20% chance of thunderstorms Wednesday Night Wednesday Night... A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 62. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

Sunny on Juneteenth Juneteenth... Sunny, with a high near 84.

Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 66.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 89.

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

Sunny on Saturday Saturday... Sunny, with a high near 93. Breezy.

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

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

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

Sunny on Monday Monday... Sunny, with a high near 92.

Current Radar Image


Sun Almanac for Alpha, Illinois
Sunrise: 05:28 AM
Sunset: 8:37 PM
Civil Sunrise:04:55 AM
Civil Sunset: 9:11 PM
Nautical Sunrise: 04:11 AM
Nautical Sunset: 9:54 PM
Astro Sunrise: 03:20 AM
Astro Sunset: 10:45 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.