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Severe Weather and Flooding From Portions of the Plains to the Mid-Atlantic

A potent spring storm system with abundant moisture will bring a chance of significant severe weather and heavy rain today into tonight. Damaging winds, large hail, and a couple of tornadoes will be possible across the Tennessee Valley, middle Ohio Valley, and portions of the Mid-Atlantic. Heavy rain and flooding are possible from the Ozarks to the Tennessee Valley. Read More >

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

76°F

24°C

Humidity 72%
Wind Speed NE 3 mph
Barometer 29.87 in (1011.0 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 27 May 8:53 am CDT
Extended Forecast for

Collinsville IL

  • Today

    Today: Partly sunny, with a high near 87. Northeast wind around 6 mph becoming southeast in the afternoon.

    Partly Sunny

    High: 87 °F

  • Tonight

    Tonight: Occasional thunderstorms, mainly before 1am, then a chance of showers and thunderstorms after 2am. Some of the storms could be severe.  Low around 65. Southeast wind 6 to 8 mph.  Chance of precipitation is 80%.

    Severe
    Thunderstorms

    Low: 65 °F

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly before 2pm.  Mostly cloudy, with a high near 78. West wind 6 to 10 mph.

    Chance
    T-storms

    High: 78 °F

  • Sunday
    Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before 8pm.  Mostly clear, with a low around 58. West wind 5 to 9 mph.

    Slight Chance
    T-storms then
    Mostly Clear

    Low: 58 °F

  • Memorial
    Day

    Memorial Day: Sunny, with a high near 81. West wind 5 to 9 mph.

    Sunny

    High: 81 °F

  • Monday
    Night

    Monday Night: Partly cloudy, with a low around 58.

    Partly Cloudy

    Low: 58 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80.

    Mostly Sunny

    High: 80 °F

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 58.

    Partly Cloudy

    Low: 58 °F

  • Wednesday

    Wednesday: A slight chance of showers between 8am and 2pm, then a slight chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 79. Chance of precipitation is 20%.

    Slight Chance
    Showers then
    Slight Chance
    T-storms

    High: 79 °F

Detailed Forecast

Today
Partly sunny, with a high near 87. Northeast wind around 6 mph becoming southeast in the afternoon.
Tonight
Occasional thunderstorms, mainly before 1am, then a chance of showers and thunderstorms after 2am. Some of the storms could be severe. Low around 65. Southeast wind 6 to 8 mph. Chance of precipitation is 80%.
Sunday
A 30 percent chance of showers and thunderstorms, mainly before 2pm. Mostly cloudy, with a high near 78. West wind 6 to 10 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 58. West wind 5 to 9 mph.
Memorial Day
Sunny, with a high near 81. West wind 5 to 9 mph.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
Mostly sunny, with a high near 80.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
A slight chance of showers between 8am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 79. Chance of precipitation is 20%.
Wednesday Night
A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 59. Chance of precipitation is 20%.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 78.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Friday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 78.
Click Map For Forecast
Point Forecast:
Collinsville IL
 38.68°N 90°W (Elev. 499 ft)
6:28 am CDT May 27, 2017
9am CDT May 27, 2017-6pm CDT Jun 2, 2017
 
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