Periods of Snow in the Northern Rockies and Great Lakes

Moderate to heavy lake-effect snow will develop over the eastern U.P. of Michigan and downwind from Lakes Erie and Ontario. Snow will develop over parts of the Northern Rockies/Northern High Plains into Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

29°F

-2°C

Humidity 63%
Wind Speed S 5 mph
Barometer 30.13 in (1020.5 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 19 Mar 3:53 am CDT
Extended Forecast for

Collinsville IL

  • Today

    Today: Sunny, with a high near 65. Breezy, with a southwest wind 7 to 12 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    Sunny then
    Sunny and
    Breezy

    High: 65 °F

  • Tonight

    Tonight: Clear, with a low around 38. West wind 5 to 9 mph becoming light northwest.

    Clear

    Low: 38 °F

  • Wednesday

    Wednesday: Sunny, with a high near 54. North wind 5 to 11 mph.

    Sunny

    High: 54 °F

  • Wednesday
    Night

    Wednesday Night: Partly cloudy, with a low around 34. Northeast wind 7 to 9 mph.

    Partly Cloudy

    Low: 34 °F

  • Thursday

    Thursday: Partly sunny, with a high near 49. East wind 7 to 10 mph.

    Partly Sunny

    High: 49 °F

  • Thursday
    Night

    Thursday Night: Partly cloudy, with a low around 37.

    Partly Cloudy

    Low: 37 °F

  • Friday

    Friday: A 30 percent chance of rain, mainly after 1pm.  Partly sunny, with a high near 59.

    Chance Rain

    High: 59 °F

  • Friday
    Night

    Friday Night: A 20 percent chance of rain before 1am.  Mostly cloudy, with a low around 35.

    Slight Chance
    Rain

    Low: 35 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 52.

    Mostly Sunny

    High: 52 °F

Detailed Forecast

Today
Sunny, with a high near 65. Breezy, with a southwest wind 7 to 12 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Tonight
Clear, with a low around 38. West wind 5 to 9 mph becoming light northwest.
Wednesday
Sunny, with a high near 54. North wind 5 to 11 mph.
Wednesday Night
Partly cloudy, with a low around 34. Northeast wind 7 to 9 mph.
Thursday
Partly sunny, with a high near 49. East wind 7 to 10 mph.
Thursday Night
Partly cloudy, with a low around 37.
Friday
A 30 percent chance of rain, mainly after 1pm. Partly sunny, with a high near 59.
Friday Night
A 20 percent chance of rain before 1am. Mostly cloudy, with a low around 35.
Saturday
Mostly sunny, with a high near 52.
Saturday Night
A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 36.
Sunday
A 40 percent chance of rain. Mostly cloudy, with a high near 57.
Sunday Night
Rain likely. Mostly cloudy, with a low around 49. Breezy. Chance of precipitation is 70%.
Monday
Rain likely. Mostly cloudy, with a high near 63. Breezy. Chance of precipitation is 70%.
Click Map For Forecast
Point Forecast:
Collinsville IL
 38.68°N 90°W (Elev. 499 ft)
3:22 am CDT Mar 19, 2024
4am CDT Mar 19, 2024-6pm CDT Mar 25, 2024
 
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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