West Alton, Missouri Weather
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Weather Forecast for West Alton, Missouri : St. Charles County
Issued: 2:06 pm CDT May 11, 2025 Latitude: 38.8650488 Longitude: -90.2226109 View on Google Maps

MouseOver for Detail Forecast
Tonight Monday Tuesday Wednesday Thursday Friday Saturday Sunday
Increasing Clouds on Tonight 60% chance of thunderstorms on Monday 50% chance of thunderstorms on Tuesday Sunny on Wednesday Mostly Sunny on Thursday 20% chance of thunderstorms on Friday Mostly Sunny on Saturday 30% chance of on Sunday
Low: 59°F High: 74°F High: 80°F High: 85°F High: 91°F High: 85°F High: 81°F High: 76°F
Low: 61°F Low: 61°F Low: 67°F Low: 63°F Low: 60°F Low: 57°F  
Increasing Clouds Thunderstorms Thunderstorms Sunny Mostly Sunny Thunderstorms Mostly Sunny Partly Sunny
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Current Conditions at
ALTON - (KALN)
79°
Clear
as of 3:50 PM CDST
Rel. Humidity: 36%
Dew Point: 50°F
Visibility: 10 Miles
Pressure: 30.11 in.
Flight Rule: VFR
Wind Data
6 MPH
080° East
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
81°
Mostly Cloudy
as of 3:51 PM CDST
Rel. Humidity: 32%
Dew Point: 48°F
Visibility: 10 Miles
Pressure: 30.10 in.
Flight Rule: VFR
Wind Data
9 MPH
080° East
Cloud Level(s): Broken at 25000ft
Current Conditions at
ST CHARLES - (KSET)
79°
Clear
as of 3:54 PM CDST
Rel. Humidity: 31%
Dew Point: 46°F
Visibility: 10 Miles
Pressure: 30.09 in.
Flight Rule: VFR
Wind Data
10 MPH
Gust: 18 MPH
080° East
Cloud Level(s): Clear
Current Conditions at
EAST ST LOUIS - (KCPS)
79°
Clear
as of 3:53 PM CDST
Rel. Humidity: 36%
Dew Point: 50°F
Visibility: 10 Miles
Pressure: 30.09 in.
Flight Rule: VFR
Wind Data
10 MPH
070° East
Cloud Level(s): Clear
Increasing Clouds on Tonight Tonight... Increasing clouds, with a low around 59. Northeast wind 5 to 9 mph.
60% chance of thunderstorms Monday Monday... A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 74. East wind 5 to 8 mph. Chance of precipitation is 60%.
40% chance of thunderstorms Monday Night Monday Night... A 40 percent chance of showers and thunderstorms, mainly before 11pm. Mostly cloudy, with a low around 61. East wind 5 to 7 mph becoming calm after midnight.
50% chance of thunderstorms Tuesday Tuesday... A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 80. Calm wind becoming south around 5 mph. Chance of precipitation is 50%.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 61. South wind around 5 mph becoming calm in the evening.
Sunny on Wednesday Wednesday... Sunny, with a high near 85.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 67.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 91.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 63.
20% chance of thunderstorms Friday Friday... A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 85.
30% chance of thunderstorms Friday Night Friday Night... A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60.
Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 81.
30% chance of thunderstorms Saturday Night Saturday Night... A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 57.
30% chance of Sunday Sunday... A 30 percent chance of showers. Partly sunny, with a high near 76.
Current Radar Image


Sun Almanac for West Alton, Missouri
Sunrise: 05:52 AM
Sunset: 8:03 PM
Civil Sunrise:05:22 AM
Civil Sunset: 8:33 PM
Nautical Sunrise: 04:45 AM
Nautical Sunset: 9:09 PM
Astro Sunrise: 04:06 AM
Astro Sunset: 9:49 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.