National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Weather Threat Continues Across the Central U.S.; Critical Fire Weather Conditions in New Mexico

Severe thunderstorms will continue to be likely across the Central Plains into the Midwest on Monday. Thunderstorm development is also possible in portions of the Middle Mississippi Valley to Lower Michigan Monday afternoon. Gusty winds and low humidity will lead to critical fire weather conditions Monday across western New Mexico into southeastern Arizona. Read More >

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

74°F

23°C

Humidity 76%
Wind Speed Calm
Barometer 29.86 in (1010.8 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 20 May 10:53 pm CDT
Extended Forecast for

Collinsville IL

  • Tonight

    Tonight: Mostly clear, with a low around 67. South wind 5 to 7 mph.

    Low: 67 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 91. Breezy, with a south wind 9 to 14 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 32 mph.

    High: 91 °F

    Sunny then
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely, mainly between midnight and 1am. Increasing clouds, with a low around 65. South wind 10 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 60%.

    Low: 65 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 79. West wind 8 to 10 mph. Chance of precipitation is 70%.

    High: 79 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. West wind 5 to 8 mph becoming light and variable after midnight. Chance of precipitation is 70%.

    Low: 63 °F

    T-storms
    Likely then
    Showers
    Likely

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.

    High: 80 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.

    Low: 65 °F

    Chance
    T-storms

  • Friday

    Friday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 83. Chance of precipitation is 70%.

    High: 83 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.

    Low: 66 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 67. South wind 5 to 7 mph.
Tuesday
Sunny, with a high near 91. Breezy, with a south wind 9 to 14 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 32 mph.
Tuesday Night
Showers and thunderstorms likely, mainly between midnight and 1am. Increasing clouds, with a low around 65. South wind 10 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 60%.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 79. West wind 8 to 10 mph. Chance of precipitation is 70%.
Wednesday Night
Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. West wind 5 to 8 mph becoming light and variable after midnight. Chance of precipitation is 70%.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 83. Chance of precipitation is 70%.
Friday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Saturday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Sunday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Memorial Day
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
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Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Collinsville IL
 38.68°N 90°W (Elev. 499 ft)
Last Update:
10:07 pm CDT May 20, 2024
Forecast Valid:
11pm CDT May 20, 2024-6pm CDT May 27, 2024
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation