West Alton, Missouri Weather
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Weather Forecast for West Alton, Missouri : St. Charles County
Issued: 11:21 am CDT Jul 3, 2025 Latitude: 38.8650488 Longitude: -90.2226109 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Independence Day Saturday Sunday Monday Tuesday Wednesday
Mostly Sunny on This Afternoon Cloudy on Tonight Mostly Sunny on Independence Day Sunny on Saturday 30% chance of thunderstorms on Sunday 30% chance of thunderstorms on Monday 30% chance of thunderstorms on Tuesday 40% chance of thunderstorms on Wednesday
High: 92°F Low: 72°F High: 93°F High: 94°F High: 90°F High: 89°F High: 90°F High: 90°F
Low: 72°F Low: 75°F Low: 71°F Low: 72°F Low: 71°F  
Mostly Sunny Cloudy Mostly Sunny Sunny Thunderstorms Thunderstorms Thunderstorms Thunderstorms
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Mostly Sunny on This Afternoon This Afternoon... Mostly sunny, with a high near 92. Light and variable wind.
Cloudy on Tonight Tonight... Partly cloudy, with a low around 72. Light southeast wind.
Mostly Sunny on Independence Day Independence Day... Mostly sunny, with a high near 93. Calm wind becoming south 5 to 9 mph in the morning.
Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 72. Southeast wind 5 to 8 mph becoming calm after midnight.
Sunny on Saturday Saturday... Sunny, with a high near 94. Light south wind increasing to 5 to 9 mph in the morning.
20% chance of thunderstorms Saturday Night Saturday Night... A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 75.
30% chance of thunderstorms Sunday Sunday... A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90.
20% chance of thunderstorms Sunday Night Sunday Night... A slight chance of showers and thunderstorms. Partly cloudy, with a low around 71. Chance of precipitation is 20%.
30% chance of thunderstorms Monday Monday... A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
20% chance of thunderstorms Monday Night Monday Night... A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72.
30% chance of thunderstorms Tuesday Tuesday... A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
40% chance of thunderstorms Tuesday Night Tuesday Night... A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
40% chance of thunderstorms Wednesday Wednesday... A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Sun Almanac for West Alton, Missouri
Sunrise: 05:41 AM
Sunset: 8:30 PM
Civil Sunrise:05:09 AM
Civil Sunset: 9:02 PM
Nautical Sunrise: 04:29 AM
Nautical Sunset: 9:41 PM
Astro Sunrise: 03:43 AM
Astro Sunset: 10:27 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.