Active Weather Pattern To Persist Over The Eastern U.S Through Midweek

A slow moving low pressure system will bring rounds of showers and thunderstorms from the Middle Atlantic to the Southeast U.S over the next couple of days. Some of the storms could be severe especially over the Southeast. Locally heavy rainfall could pose a risk for flooding of low lying and poor drainage areas.
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Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Mostly Cloudy

54°F

12°C

Humidity 67%
Wind Speed SW 7 mph
Barometer 29.80 in (1009.0 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 4 May 2:53 am CDT
Extended Forecast for

Collinsville IL

  • Overnight

    Overnight: Isolated showers between 4am and 5am, then scattered showers and thunderstorms after 5am.  Mostly cloudy, with a low around 52. Southwest wind around 9 mph.  Chance of precipitation is 30%.

    Scattered
    Showers

    Low: 52 °F

  • Wednesday

    Wednesday: Scattered showers and thunderstorms before 8am.  Mostly cloudy through mid morning, then gradual clearing, with a high near 68. Breezy, with a southwest wind 10 to 15 mph becoming north 16 to 21 mph in the morning. Winds could gust as high as 30 mph.  Chance of precipitation is 30%.

    Breezy.
    Scattered
    Showers then
    Mostly Sunny

    High: 68 °F

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 45. Northwest wind 6 to 16 mph, with gusts as high as 24 mph.

    Mostly Clear

    Low: 45 °F

  • Thursday

    Thursday: Sunny, with a high near 66. North wind 9 to 14 mph.

    Sunny

    High: 66 °F

  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 48. Northwest wind 5 to 9 mph becoming light  in the evening.

    Mostly Clear

    Low: 48 °F

  • Friday

    Friday: Sunny, with a high near 78.

    Sunny

    High: 78 °F

  • Friday
    Night

    Friday Night: Clear, with a low around 57.

    Clear

    Low: 57 °F

  • Saturday

    Saturday: Sunny, with a high near 84.

    Sunny

    High: 84 °F

  • Saturday
    Night

    Saturday Night: A 30 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 57.

    Chance
    T-storms

    Low: 57 °F

Detailed Forecast

Overnight
Isolated showers between 4am and 5am, then scattered showers and thunderstorms after 5am. Mostly cloudy, with a low around 52. Southwest wind around 9 mph. Chance of precipitation is 30%.
Wednesday
Scattered showers and thunderstorms before 8am. Mostly cloudy through mid morning, then gradual clearing, with a high near 68. Breezy, with a southwest wind 10 to 15 mph becoming north 16 to 21 mph in the morning. Winds could gust as high as 30 mph. Chance of precipitation is 30%.
Wednesday Night
Mostly clear, with a low around 45. Northwest wind 6 to 16 mph, with gusts as high as 24 mph.
Thursday
Sunny, with a high near 66. North wind 9 to 14 mph.
Thursday Night
Mostly clear, with a low around 48. Northwest wind 5 to 9 mph becoming light in the evening.
Friday
Sunny, with a high near 78.
Friday Night
Clear, with a low around 57.
Saturday
Sunny, with a high near 84.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 57.
Sunday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 74.
Sunday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 58.
Monday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 79.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 77.
Click Map For Forecast
Point Forecast:
Collinsville IL
 38.68°N 90°W (Elev. 499 ft)
2:16 am CDT May 4, 2016
3am CDT May 4, 2016-6pm CDT May 10, 2016
 
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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