National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Cold Front to Move across the Pacific Northwest Through Tuesday; Storm Developing Over the Four Corners

A cold front will move across the Pacific Northwest on Tuesday, bringing low elevation rain and heavy mountain snow. This will be the first of several waves of unsettled weather to impact the region through this week. An upper level disturbance will contribute to development of a storm with rain and snow over the Four Corners. East of this storm, ice is possible from Nebraska to Wisconsin. Read More >

Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Overcast

20°F

-7°C

Humidity 85%
Wind Speed NW 7 mph
Barometer 30.67 in (1039.8 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill11°F (-12°C)
Last update 21 Jan 2:54 am CST
Extended Forecast for

Lake St. Louis MO

  • Overnight

    Overnight: Mostly cloudy, with a low around 11. Calm wind.

    Mostly Cloudy

    Low: 11 °F

  • Tuesday

    Tuesday: Sunny, with a high near 35. Calm wind becoming south 5 to 7 mph in the afternoon.

    Sunny

    High: 35 °F

  • Tuesday
    Night

    Tuesday Night: Increasing clouds, with a low around 21. South wind 3 to 6 mph.

    Increasing
    Clouds

    Low: 21 °F

  • Wednesday

    Wednesday: Cloudy, with a high near 38. South wind 7 to 10 mph.

    Cloudy

    High: 38 °F

  • Wednesday
    Night

    Wednesday Night: Rain and snow likely, becoming all snow after 7pm. Cloudy, with a low around 32. South wind 6 to 8 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Rain/Snow
    Likely then
    Snow Likely

    Low: 32 °F

  • Thursday

    Thursday: Snow likely before 11am, then rain and snow likely between 11am and noon, then rain likely after noon. Cloudy, with a high near 38. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Rain/Snow
    Likely then
    Rain Likely

    High: 38 °F

  • Thursday
    Night

    Thursday Night: Rain and snow likely, becoming all snow after 9pm. Cloudy, with a low around 32. Chance of precipitation is 70%.

    Rain/Snow
    Likely then
    Chance Snow

    Low: 32 °F

  • Friday

    Friday: A chance of snow before 10am, then a chance of rain and snow between 10am and noon, then a chance of rain after noon. Cloudy, with a high near 39. Chance of precipitation is 40%.

    Chance
    Rain/Snow
    then Chance
    Rain

    High: 39 °F

  • Friday
    Night

    Friday Night: A chance of rain and snow before 11pm, then a chance of snow between 11pm and midnight. Cloudy, with a low around 32. Chance of precipitation is 30%.

    Chance
    Rain/Snow
    then Cloudy

    Low: 32 °F

Detailed Forecast

Overnight
Mostly cloudy, with a low around 11. Calm wind.
Tuesday
Sunny, with a high near 35. Calm wind becoming south 5 to 7 mph in the afternoon.
Tuesday Night
Increasing clouds, with a low around 21. South wind 3 to 6 mph.
Wednesday
Cloudy, with a high near 38. South wind 7 to 10 mph.
Wednesday Night
Rain and snow likely, becoming all snow after 7pm. Cloudy, with a low around 32. South wind 6 to 8 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Thursday
Snow likely before 11am, then rain and snow likely between 11am and noon, then rain likely after noon. Cloudy, with a high near 38. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday Night
Rain and snow likely, becoming all snow after 9pm. Cloudy, with a low around 32. Chance of precipitation is 70%.
Friday
A chance of snow before 10am, then a chance of rain and snow between 10am and noon, then a chance of rain after noon. Cloudy, with a high near 39. Chance of precipitation is 40%.
Friday Night
A chance of rain and snow before 11pm, then a chance of snow between 11pm and midnight. Cloudy, with a low around 32. Chance of precipitation is 30%.
Saturday
Mostly cloudy, with a high near 41.
Saturday Night
Mostly cloudy, with a low around 30.
Sunday
Partly sunny, with a high near 46.
Sunday Night
Partly cloudy, with a low around 32.
Monday
Mostly cloudy, with a high near 48.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Lake St. Louis MO
 38.79°N 90.79°W (Elev. 512 ft)
Last Update:
2:42 am CST Jan 21, 2020
Forecast Valid:
3am CST Jan 21, 2020-6pm CST Jan 27, 2020
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation