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

Severe Weather and Excessive Rain from the Southern Plains into the Mississippi Valley

Severe thunderstorms may produce tornadoes, some strong, damaging wind gusts above 70 mph, and very large hail exceeding 2 inches in diameter, and intense rainfall that may cause flash flooding tonight across much of the southern Plains and lower Missouri Valley. The severe thunderstorms and excessive rainfall will expand from east Texas into the Mississippi Valley on Sunday. Read More >

Hazardous Weather Conditions

Current conditions at

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

69°F

21°C

Humidity 70%
Wind Speed S 18 G 30 mph
Barometer 29.88 in (1011.3 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 28 Apr 7:54 am CDT
Extended Forecast for

2 Miles W Grafton IL

  • Today

    Today: A chance of showers and thunderstorms before 11am, then showers likely and possibly a thunderstorm between 11am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 76. Breezy, with a south wind 15 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.

    Showers
    Likely and
    Breezy

    High: 76 °F

  • Tonight

    Tonight: Showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then a chance of showers and thunderstorms after 4am. Low around 63. South wind 11 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.

    T-storms then
    Showers

    Low: 63 °F

  • Monday

    Monday: A chance of showers and thunderstorms before 1pm, then a chance of showers between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 74. Southwest wind 10 to 13 mph. Chance of precipitation is 40%.

    Chance
    Showers

    High: 74 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 54. West wind 3 to 7 mph.

    Mostly Clear

    Low: 54 °F

  • Tuesday

    Tuesday: Sunny, with a high near 80. Light southeast wind becoming south 6 to 11 mph in the morning.

    Sunny

    High: 80 °F

  • Tuesday
    Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63.

    Mostly Clear
    then Chance
    T-storms

    Low: 63 °F

  • Wednesday

    Wednesday: A slight chance of thunderstorms before 7am, then a slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. Chance of precipitation is 20%.

    Partly Sunny
    then Slight
    Chance
    T-storms

    High: 85 °F

  • Wednesday
    Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.

    Chance
    T-storms

    Low: 67 °F

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 82. Chance of precipitation is 70%.

    Showers
    Likely

    High: 82 °F

Detailed Forecast

Today
A chance of showers and thunderstorms before 11am, then showers likely and possibly a thunderstorm between 11am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 76. Breezy, with a south wind 15 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.
Tonight
Showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then a chance of showers and thunderstorms after 4am. Low around 63. South wind 11 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.
Monday
A chance of showers and thunderstorms before 1pm, then a chance of showers between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 74. Southwest wind 10 to 13 mph. Chance of precipitation is 40%.
Monday Night
Mostly clear, with a low around 54. West wind 3 to 7 mph.
Tuesday
Sunny, with a high near 80. Light southeast wind becoming south 6 to 11 mph in the morning.
Tuesday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63.
Wednesday
A slight chance of thunderstorms before 7am, then a slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. Chance of precipitation is 20%.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 82. Chance of precipitation is 70%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. Chance of precipitation is 70%.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 73.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 53.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 71.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
2 Miles W Grafton IL
 38.98°N 90.47°W (Elev. 689 ft)
Last Update:
6:22 am CDT Apr 28, 2024
Forecast Valid:
8am CDT Apr 28, 2024-6pm CDT May 4, 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