See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
36°
Mostly Cloudy
Feels Like: 16°
Min: 25°
Max: 36°
The next few hours will be clear, with today reaching 36°C and dropping to 23°C. The coming days will be mostly cloudy
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:50
Sunrise
19:04
Sunset
Moon
Waxing Crescent
11:36
Moonrise
20:43
Moonset
Daily Forecast
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Wednesday
Thursday
Friday
Saturday
Sunday
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Thursday
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Weather in Lake Saint Louis today, September 15, 2026
Expect a muted, overcast feel in Lake Saint Louis on September 15, 2026 as cloud persists. Brighter breaks, if they arrive, should stay brief.
The day peaks near 36°C and cools toward 25°C. Moisture in the air spans 37%-77%, with the highest values around 23:00. A lighter breeze peaks around 18:00 near 11.3 km/h.
The afternoon keeps an overcast feel, as cloud reaches about 100% around 18:00. Outdoor plans may still want a flexible backup. Expect visibility near 15.0 km, with poorer spells close to 5.9 km. Sunrise is at 06:50 and sunset at 19:04, giving 12 hours 14 minutes of sunlight today.
The practical takeaway for Lake Saint Louis on September 15, 2026 is a cloudy day that stays usable, just not particularly bright, around 36°C.
Frequently asked questions about weather in Lake Saint Louis
How warm does it get in Lake Saint Louis?
The warmest month in Lake Saint Louis is July, with average high temperatures of 31°C. The average temperature during this period is around 26°C.
How cold does it get in Lake Saint Louis?
The coldest month in Lake Saint Louis is January, with average low temperatures of -3°C. The average temperature during this period is around 0°C.
What is the wettest time of year in Lake Saint Louis?
The wettest month in Lake Saint Louis is May, with an average of 130mm of precipitation.
What is the driest time of year in Lake Saint Louis?
The driest month in Lake Saint Louis is December, with an average of 52mm of precipitation.
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