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Severe Thunderstorms With Heavy Rain over the Mid-Atlantic; Excessive Heat For Central/Southern U.S. to Mid-Atlantic

Severe thunderstorms are possible Sunday across the Mid-Atlantic region. Damaging winds, large hail, and flooding will be the primary threats with these storms. Meanwhile, dangerous heat will continue through Sunday across the central and southern U.S. into the Mid-Atlantic. Read More >

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Mostly Cloudy

91°F

33°C

Humidity 54%
Wind Speed W 5 mph
Barometer 29.78 in (1007.9 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 22 Jul 9:53 pm CDT
Extended Forecast for

2 Miles NW Cahokia IL

Excessive Heat Warning until July 23, 08:00pm
Click here for hazard details and duration
Excessive Heat Warning
  •  
    Excessive Heat Warning until July 23, 08:00pm

    NOW until
    8:00pm Sun

    Excessive Heat Warning

  • Tonight

    Tonight: Scattered showers and thunderstorms.  Mostly cloudy, with a low around 79. Southwest wind around 7 mph becoming northwest after midnight.  Chance of precipitation is 50%.

    Scattered
    T-storms

    Low: 79 °F

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms before 1pm.  Partly sunny and hot, with a high near 98. Heat index values as high as 106. Northwest wind 3 to 7 mph.

    Slight Chance
    T-storms

    High: 98 °F

  • Sunday
    Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before 1am.  Partly cloudy, with a low around 72. Northwest wind 3 to 5 mph.

    Slight Chance
    T-storms

    Low: 72 °F

  • Monday

    Monday: Sunny, with a high near 91. Calm wind becoming north around 5 mph in the morning.

    Sunny

    High: 91 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 70. Northeast wind around 5 mph becoming calm  in the evening.

    Mostly Clear

    Low: 70 °F

  • Tuesday

    Tuesday: Sunny, with a high near 94.

    Sunny

    High: 94 °F

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 73.

    Mostly Clear

    Low: 73 °F

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 98.

    Hot

    High: 98 °F

Detailed Forecast

Tonight
Scattered showers and thunderstorms. Mostly cloudy, with a low around 79. Southwest wind around 7 mph becoming northwest after midnight. Chance of precipitation is 50%.
Sunday
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny and hot, with a high near 98. Heat index values as high as 106. Northwest wind 3 to 7 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. Northwest wind 3 to 5 mph.
Monday
Sunny, with a high near 91. Calm wind becoming north around 5 mph in the morning.
Monday Night
Mostly clear, with a low around 70. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 94.
Tuesday Night
Mostly clear, with a low around 73.
Wednesday
Mostly sunny and hot, with a high near 98.
Wednesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 77.
Thursday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 93.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73.
Friday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.
Friday Night
Partly cloudy, with a low around 69.
Saturday
Sunny, with a high near 89.
Click Map For Forecast
Point Forecast:
2 Miles NW Cahokia IL
 38.57°N 90.21°W (Elev. 397 ft)
9:27 pm CDT Jul 22, 2017
10pm CDT Jul 22, 2017-6pm CDT Jul 29, 2017
 
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