National Weather Service forecast

Lake St. Louis, Missouri Weather

52°Overnight: Slight Chance Light Rain
Wind SW 9 mph
7-DayHourlyRadar

Lake St. Louis 7-Day Forecast

  1. Overnight
    52°F
    Slight Chance Light Rain
    23% chance of precipitation

    A slight chance of rain before 1am, then a slight chance of drizzle between 1am and 4am. Mostly cloudy, with a low around 52. Southwest wind around 9 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

  2. Wednesday
    62°F
    Mostly Cloudy
    3% chance of precipitation

    Mostly cloudy, with a high near 62. West wind 8 to 14 mph, with gusts as high as 22 mph.

  3. Wednesday Night
    42°F
    Partly Cloudy

    Partly cloudy, with a low around 42. West wind around 6 mph.

  4. Thursday
    64°F
    Sunny

    Sunny. High near 64, with temperatures falling to around 59 in the afternoon. West wind 6 to 10 mph.

  5. Thursday Night
    43°F
    Mostly Cloudy
    3% chance of precipitation

    Mostly cloudy, with a low around 43. Northwest wind around 6 mph.

  6. Friday
    56°F
    Partly Sunny
    5% chance of precipitation

    Partly sunny, with a high near 56.

  7. Friday Night
    33°F
    Partly Cloudy

    Partly cloudy, with a low around 33.

  8. Saturday
    55°F
    Mostly Sunny

    Mostly sunny, with a high near 55.

  9. Saturday Night
    33°F
    Partly Cloudy

    Partly cloudy, with a low around 33.

  10. Sunday
    61°F
    Sunny
    1% chance of precipitation

    Sunny, with a high near 61.

  11. Sunday Night
    34°F
    Clear

    Clear, with a low around 34.

  12. Monday
    66°F
    Sunny

    Sunny, with a high near 66.

  13. Monday Night
    40°F
    Clear

    Clear, with a low around 40.

  14. Tuesday
    69°F
    Sunny
    1% chance of precipitation

    Sunny, with a high near 69.

Issued by the National Weather Service (LSX office), updated .

Lake St. Louis Hourly Forecast

Loading the next 48 hours…

Full 100+ hour forecast for Lake St. Louis

Lake St. Louis Weather Radar

Open the full radar for Lake St. Louis

About Lake St. Louis

Population (2020 Census)
16,707
Coordinates
38.780, -90.786
Elevation
512 ft
NWS forecast office
LSX
Time zone
America/Chicago
Sunrise today
6:33 AM CST
Sunset today
5:00 PM CST
Daylight today
10 h 27 min

Lake St. Louis Weather Questions

What is the weather forecast for Lake St. Louis, Missouri?

Overnight: A slight chance of rain before 1am, then a slight chance of drizzle between 1am and 4am. Mostly cloudy, with a low around 52. Southwest wind around 9 mph, with gusts as high as 22 mph. Chance of precipitation is 20%. Wednesday: Mostly cloudy, with a high near 62. West wind 8 to 14 mph, with gusts as high as 22 mph.

Will it rain or snow in Lake St. Louis this week?

Not much. The highest chance of precipitation in the 7-day forecast is 23%, Overnight.

How warm and how cold will it get in Lake St. Louis this week?

The warmest day is Tuesday, with a high near 69°F. The coldest night is Friday Night, with a low near 33°F.

What time are sunrise and sunset in Lake St. Louis today?

Sunrise is at 6:33 AM CST and sunset is at 5:00 PM CST, for 10 h 27 min of daylight.

Weather near Lake St. Louis

Largest cities in Missouri

All Missouri cities