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Heavy rain and flash flooding possible in portions of the Southwest this weekend

An upper-level low in the Southwest U.S. will act as a trigger for thunderstorms this weekend. The area of greatest concern is in New Mexico, southeast Utah and portions of southern Colorado. Storms will be slow moving and could bring several rounds of rain to the same areas. Rainfall amounts may exceed 3 inches in localized areas. Flash Flood Watches are in effect. Read More >

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

77°F

25°C

Humidity 82%
Wind Speed Calm
Barometer 30.01 in (1015.9 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 20 Aug 7:53 am CDT
Extended Forecast for

3 Miles SSW Pontoon Beach IL

  • Today

    Today: Scattered showers and thunderstorms, mainly before 2pm.  Sunny through mid morning, then becoming mostly cloudy, with a high near 93. Light and variable wind.  Chance of precipitation is 30%.

    Partly Sunny
    then
    Scattered
    T-storms

    High: 93 °F

  • Tonight

    Tonight: Isolated showers and thunderstorms before 9pm.  Partly cloudy, with a low around 72. Southeast wind around 5 mph becoming calm.  Chance of precipitation is 20%.

    Isolated
    T-storms then
    Partly Cloudy

    Low: 72 °F

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 92. Heat index values as high as 100. Calm wind becoming south around 6 mph in the morning.

    Mostly Sunny
    then Slight
    Chance
    T-storms

    High: 92 °F

  • Monday
    Night

    Monday Night: A 50 percent chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 74. South wind around 6 mph.

    Mostly Cloudy
    then Chance
    T-storms

    Low: 74 °F

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly before 1pm.  Mostly cloudy, with a high near 85. West wind 5 to 7 mph.  Chance of precipitation is 60%.

    T-storms
    Likely

    High: 85 °F

  • Tuesday
    Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before 1am.  Partly cloudy, with a low around 61.

    Slight Chance
    T-storms

    Low: 61 °F

  • Wednesday

    Wednesday: Sunny, with a high near 81.

    Sunny

    High: 81 °F

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 57.

    Mostly Clear

    Low: 57 °F

  • Thursday

    Thursday: Sunny, with a high near 80.

    Sunny

    High: 80 °F

Detailed Forecast

Today
Scattered showers and thunderstorms, mainly before 2pm. Sunny through mid morning, then becoming mostly cloudy, with a high near 93. Light and variable wind. Chance of precipitation is 30%.
Tonight
Isolated showers and thunderstorms before 9pm. Partly cloudy, with a low around 72. Southeast wind around 5 mph becoming calm. Chance of precipitation is 20%.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. Heat index values as high as 100. Calm wind becoming south around 6 mph in the morning.
Monday Night
A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 74. South wind around 6 mph.
Tuesday
Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, with a high near 85. West wind 5 to 7 mph. Chance of precipitation is 60%.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 61.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Sunny, with a high near 80.
Thursday Night
Mostly clear, with a low around 57.
Friday
Sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 58.
Saturday
Mostly sunny, with a high near 80.
Click Map For Forecast
Point Forecast:
3 Miles SSW Pontoon Beach IL
 38.68°N 90.09°W (Elev. 404 ft)
7:42 am CDT Aug 20, 2017
8am CDT Aug 20, 2017-6pm CDT Aug 26, 2017
 
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