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

Storm System Continues To Impact Southern California, Severe Weather Threatens The Southern And Eastern U.S.

A storm system will deliver heavy mountain snow and rainfall to southern California and the Desert Southwest through late week. The heavy rainfall may pose a flash flood risk, especially to burn scar locations. Severe thunderstorms capable of damaging winds, hail, and tornadoes will be possible from the Southern Plains to the Mississippi Valley, Mid South, and Mid Atlantic through Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

64°F

18°C

Humidity 96%
Wind Speed W 3 mph
Barometer 29.77 in (1007.7 mb)
Dewpoint 63°F (17°C)
Visibility 9.00 mi
Last update 8 Apr 7:53 am CDT
Extended Forecast for

Cahokia IL

  • Today

    Today: Sunny, with a high near 88. Light and variable wind becoming southwest 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.

    Sunny

    High: 88 °F

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, then gradual clearing toward daybreak, with a low around 46. Breezy, with a west wind 9 to 14 mph becoming north 16 to 21 mph in the evening. Winds could gust as high as 32 mph. Chance of precipitation is 70%.

    Breezy.
    T-storms
    Likely then
    Mostly Clear

    Low: 46 °F

  • Thursday

    Thursday: Sunny, with a high near 58. Northwest wind 10 to 16 mph, with gusts as high as 29 mph.

    Sunny

    High: 58 °F

  • Thursday
    Night

    Thursday Night: Partly cloudy, with a low around 35. Northwest wind 8 to 16 mph.

    Partly Cloudy

    Low: 35 °F

  • Friday

    Friday: Sunny, with a high near 56. Northwest wind 7 to 10 mph.

    Sunny

    High: 56 °F

  • Friday
    Night

    Friday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 41.

    Mostly Clear
    then Slight
    Chance
    Showers

    Low: 41 °F

  • Saturday

    Saturday: A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 58.

    Chance
    Showers

    High: 58 °F

  • Saturday
    Night

    Saturday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.

    Chance
    Showers then
    Showers
    Likely

    Low: 48 °F

  • Sunday

    Sunday: Showers likely. Mostly cloudy, with a high near 60. Chance of precipitation is 70%.

    Showers
    Likely

    High: 60 °F

Detailed Forecast

Today
Sunny, with a high near 88. Light and variable wind becoming southwest 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.
Tonight
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, then gradual clearing toward daybreak, with a low around 46. Breezy, with a west wind 9 to 14 mph becoming north 16 to 21 mph in the evening. Winds could gust as high as 32 mph. Chance of precipitation is 70%.
Thursday
Sunny, with a high near 58. Northwest wind 10 to 16 mph, with gusts as high as 29 mph.
Thursday Night
Partly cloudy, with a low around 35. Northwest wind 8 to 16 mph.
Friday
Sunny, with a high near 56. Northwest wind 7 to 10 mph.
Friday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 41.
Saturday
A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 58.
Saturday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Sunday
Showers likely. Mostly cloudy, with a high near 60. Chance of precipitation is 70%.
Sunday Night
A 40 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 40.
Monday
A 30 percent chance of showers. Partly sunny, with a high near 52.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 35.
Tuesday
A 30 percent chance of showers. Mostly sunny, with a high near 51.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Cahokia IL
 38.57°N 90.18°W (Elev. 407 ft)
Last Update:
6:57 am CDT Apr 8, 2020
Forecast Valid:
8am CDT Apr 8, 2020-6pm CDT Apr 14, 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