Cold Temperatures and Some Snow

A strong cold front and low pressure system will press from the Central U.S. through the East over the next couple of days. The impressive cold front will allow a cold air mass to settle in east of the Rockies and numerous record low temperatures are likely the next few days, especially Wednesday morning. A streak of snow is also expected from the central Plains to northern New England. Read More >

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Mostly Cloudy

41°F

5°C

Humidity 65%
Wind Speed N 9 mph
Barometer 30.06 in (1017.8 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 20 Apr 5:51 am CDT
Extended Forecast for

Saint Louis MO

Freeze Warning April 21, 01:00am until April 21, 09:00am
Click here for hazard details and duration
Freeze Warning
  • Today

    Today: Rain showers before 3pm, then rain and snow showers between 3pm and 5pm, then snow showers after 5pm.  Temperature rising to near 44 by 10am, then falling to around 34 during the remainder of the day. North wind 6 to 11 mph, with gusts as high as 20 mph.  Chance of precipitation is 100%. Little or no snow accumulation expected.

    Showers
    Likely then
    Rain/Snow

    High: 44 °F

  • Tonight

    Tonight: Rain and snow showers likely, mainly before 7pm.  Widespread frost, mainly after 3am.  Otherwise, cloudy during the early evening, then gradual clearing, with a low around 31. West wind 7 to 11 mph.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    Rain/Snow
    Likely then
    Frost

    Low: 31 °F

  • Wednesday

    Wednesday: A 20 percent chance of showers after 1pm.  Widespread frost, mainly before 8am.  Otherwise, increasing clouds, with a high near 52. West wind 7 to 10 mph, with gusts as high as 20 mph.

    Frost then
    Slight Chance
    Showers

    High: 52 °F

  • Wednesday
    Night

    Wednesday Night: Areas of frost after 3am.  Otherwise, mostly cloudy, then gradually becoming clear, with a low around 33. West wind 3 to 7 mph.

    Partly Cloudy
    then Areas
    Frost

    Low: 33 °F

  • Thursday

    Thursday: Widespread frost, mainly before 7am.  Otherwise, sunny, with a high near 58. Calm wind becoming west 5 to 7 mph in the morning.

    Frost then
    Sunny

    High: 58 °F

  • Thursday
    Night

    Thursday Night: A 20 percent chance of showers after 1am.  Mostly cloudy, with a low around 42.

    Partly Cloudy
    then Slight
    Chance
    Showers

    Low: 42 °F

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 1pm.  Mostly cloudy, with a high near 58. Chance of precipitation is 40%.

    Chance
    Showers

    High: 58 °F

  • Friday
    Night

    Friday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers.  Mostly cloudy, with a low around 48. Chance of precipitation is 60%.

    Showers
    Likely

    Low: 48 °F

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm.  Partly sunny, with a high near 63.

    Slight Chance
    Showers

    High: 63 °F

Detailed Forecast

Today
Rain showers before 3pm, then rain and snow showers between 3pm and 5pm, then snow showers after 5pm. Temperature rising to near 44 by 10am, then falling to around 34 during the remainder of the day. North wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Tonight
Rain and snow showers likely, mainly before 7pm. Widespread frost, mainly after 3am. Otherwise, cloudy during the early evening, then gradual clearing, with a low around 31. West wind 7 to 11 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Wednesday
A 20 percent chance of showers after 1pm. Widespread frost, mainly before 8am. Otherwise, increasing clouds, with a high near 52. West wind 7 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Areas of frost after 3am. Otherwise, mostly cloudy, then gradually becoming clear, with a low around 33. West wind 3 to 7 mph.
Thursday
Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 58. Calm wind becoming west 5 to 7 mph in the morning.
Thursday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 42.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 58. Chance of precipitation is 40%.
Friday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Saturday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 63.
Saturday Night
Mostly clear, with a low around 42.
Sunday
Mostly sunny, with a high near 65.
Sunday Night
Partly cloudy, with a low around 47.
Monday
Sunny, with a high near 74.
Click Map For Forecast
Point Forecast:
Saint Louis MO
 38.64°N 90.23°W (Elev. 538 ft)
5:56 am CDT Apr 20, 2021
6am CDT Apr 20, 2021-6pm CDT Apr 26, 2021
 
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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