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

Isolated Severe Thunderstorms and Flooding Potential in the Central U.S.

Isolated strong to severe thunderstorms are possible across parts of the southern and central Plains today through Saturday. Large hail and severe wind gusts are the main threats. Heavy rainfall is forecast from the western Gulf Coast into the Midwest from this weekend into early next week. New and renewed river rises are possible across portions of eastern Texas. Read More >

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Partly Cloudy

67°F

19°C

Humidity 29%
Wind Speed SE 10 mph
Barometer 30.37 in (1028.5 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 13 May 1:53 pm CDT
Extended Forecast for

Collinsville IL

  • This
    Afternoon

    This Afternoon: Mostly sunny, with a high near 66. East wind around 6 mph.

    Mostly Sunny

    High: 66 °F

  • Tonight

    Tonight: Mostly clear, with a low around 45. East wind around 5 mph becoming calm in the evening.

    Mostly Clear

    Low: 45 °F

  • Friday

    Friday: Mostly sunny, with a high near 69. South wind 3 to 8 mph.

    Mostly Sunny

    High: 69 °F

  • Friday
    Night

    Friday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 53. Southeast wind 3 to 6 mph.

    Mostly Cloudy
    then Slight
    Chance
    Showers

    Low: 53 °F

  • Saturday

    Saturday: A 50 percent chance of showers. Mostly cloudy, with a high near 69. South wind 5 to 10 mph.

    Chance
    Showers

    High: 69 °F

  • Saturday
    Night

    Saturday Night: A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.

    Showers
    Likely

    Low: 56 °F

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 72. Chance of precipitation is 70%.

    Showers
    Likely

    High: 72 °F

  • Sunday
    Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.

    Showers
    Likely

    Low: 62 °F

  • Monday

    Monday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 76. Chance of precipitation is 60%.

    Showers
    Likely

    High: 76 °F

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 66. East wind around 6 mph.
Tonight
Mostly clear, with a low around 45. East wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 69. South wind 3 to 8 mph.
Friday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 53. Southeast wind 3 to 6 mph.
Saturday
A 50 percent chance of showers. Mostly cloudy, with a high near 69. South wind 5 to 10 mph.
Saturday Night
A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.
Sunday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 72. Chance of precipitation is 70%.
Sunday Night
A chance of showers and thunderstorms, then showers likely after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Monday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 76. Chance of precipitation is 60%.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 61.
Tuesday
Showers and thunderstorms likely. Mostly cloudy, with a high near 76. Chance of precipitation is 60%.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 62.
Wednesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 79.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Collinsville IL
 38.68°N 90°W (Elev. 499 ft)
Last Update:
1:11 pm CDT May 13, 2021
Forecast Valid:
2pm CDT May 13, 2021-6pm CDT May 19, 2021
 
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