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Heavy Rain and Flooding, and Significant Wintry Impacts for the Central U.S.

A strong frontal boundary slowing as it moves into the central U.S. will tap into deep moisture to produce heavy rain and flooding, and a significant ice storm. Rain totals up to 7 inches, with isolated higher amounts, will be possible. Significant icing up to a third of an inch may occur in the central Plains and Middle Missouri Valley. Continued cold weather with snow to low elevations out west. Read More >

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Rain Fog/Mist

66°F

19°C

Humidity 87%
Wind Speed S 17 G 35 mph
Barometer 29.95 in
Dewpoint 62°F (17°C)
Visibility 5.00 mi
Last update 20 Feb 10:53 am CST
Extended Forecast for

Collinsville IL

  • Today

    Today: Showers and possibly a thunderstorm.  High near 69. South wind 13 to 18 mph, with gusts as high as 37 mph.  Chance of precipitation is 90%.

    Showers

    High: 69 °F

  • Tonight

    Tonight: Rain showers before 5am, then a chance of freezing rain. The rain could be heavy at times. Some thunder is also possible.  Low around 30. Northwest wind 13 to 16 mph, with gusts as high as 23 mph.  Chance of precipitation is 100%. Little or no ice accumulation expected.

    Heavy Rain
    then
    Rain/Freezing
    Rain

    Low: 30 °F

  • Wednesday

    Wednesday: A chance of freezing rain before 9am, then a chance of snow between 9am and 11am, then a chance of rain after 11am.  Mostly cloudy, with a high near 38. North wind 10 to 13 mph, with gusts as high as 20 mph.  Chance of precipitation is 30%.

    Chance Wintry
    Mix then
    Chance Rain

    High: 38 °F

  • Wednesday
    Night

    Wednesday Night: A 50 percent chance of rain.  Cloudy, with a low around 33. Northeast wind around 10 mph.

    Chance Rain

    Low: 33 °F

  • Thursday

    Thursday: A 20 percent chance of rain.  Mostly cloudy, with a high near 49. Northeast wind 6 to 9 mph.

    Slight Chance
    Rain

    High: 49 °F

  • Thursday
    Night

    Thursday Night: Rain, mainly after midnight.  Low around 43. Chance of precipitation is 80%.

    Chance Rain
    then Rain

    Low: 43 °F

  • Friday

    Friday: Showers likely, mainly before noon.  Cloudy, with a high near 56. Chance of precipitation is 70%.

    Showers
    Likely then
    Slight Chance
    Showers

    High: 56 °F

  • Friday
    Night

    Friday Night: Showers.  Low around 45. Chance of precipitation is 90%.

    Showers

    Low: 45 °F

  • Saturday

    Saturday: Showers likely, with thunderstorms also possible after noon.  Cloudy, with a high near 60. Chance of precipitation is 70%.

    Showers
    Likely then
    Chance
    Showers

    High: 60 °F

Detailed Forecast

Today
Showers and possibly a thunderstorm. High near 69. South wind 13 to 18 mph, with gusts as high as 37 mph. Chance of precipitation is 90%.
Tonight
Rain showers before 5am, then a chance of freezing rain. The rain could be heavy at times. Some thunder is also possible. Low around 30. Northwest wind 13 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. Little or no ice accumulation expected.
Wednesday
A chance of freezing rain before 9am, then a chance of snow between 9am and 11am, then a chance of rain after 11am. Mostly cloudy, with a high near 38. North wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Wednesday Night
A 50 percent chance of rain. Cloudy, with a low around 33. Northeast wind around 10 mph.
Thursday
A 20 percent chance of rain. Mostly cloudy, with a high near 49. Northeast wind 6 to 9 mph.
Thursday Night
Rain, mainly after midnight. Low around 43. Chance of precipitation is 80%.
Friday
Showers likely, mainly before noon. Cloudy, with a high near 56. Chance of precipitation is 70%.
Friday Night
Showers. Low around 45. Chance of precipitation is 90%.
Saturday
Showers likely, with thunderstorms also possible after noon. Cloudy, with a high near 60. Chance of precipitation is 70%.
Saturday Night
A 40 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 37.
Sunday
Mostly sunny, with a high near 55.
Sunday Night
Mostly clear, with a low around 35.
Monday
Sunny, with a high near 57.
Click Map For Forecast
Point Forecast:
Collinsville IL
 38.68°N 90°W (Elev. 499 ft)
10:16 am CST Feb 20, 2018
11am CST Feb 20, 2018-6pm CST Feb 26, 2018
 
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