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

Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Thunderstorm Heavy Rain

75°F

24°C

Humidity 94%
Wind Speed E 16 G 22 mph
Barometer 29.98 in
Dewpoint 73°F (23°C)
Visibility 1.00 mi
Last update 15 Jul 3:50 pm CDT
Extended Forecast for

Roxana IL

Flood Advisory until July 15, 06:00pm
Click here for hazard details and duration
Flood Advisory
  •  
    Flood Advisory until July 15, 06:00pm

    NOW until 6:00pm Tue

    Flood Advisory

  • This Afternoon

    High: 87 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 71. Southeast wind around 6 mph becoming light and variable after midnight.

    Low: 71 °F

    Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 94. Heat index values as high as 106. Southwest wind 5 to 8 mph.

    High: 94 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 75. Southwest wind 5 to 7 mph.

    Low: 75 °F

    Chance
    T-storms

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 88. West wind 6 to 8 mph.

    High: 88 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84.

    High: 84 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.

    Low: 72 °F

    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 87. South wind around 7 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 71. Southeast wind around 6 mph becoming light and variable after midnight.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 94. Heat index values as high as 106. Southwest wind 5 to 8 mph.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 75. Southwest wind 5 to 7 mph.
Thursday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 88. West wind 6 to 8 mph.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Friday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 90.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
Sunday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 92.
Sunday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74.
Monday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 91.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
Tuesday
Mostly sunny, with a high near 94.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Roxana IL
 38.84°N 90.05°W (Elev. 436 ft)
Last Update:
4:21 pm CDT Jul 15, 2025
Forecast Valid:
4pm CDT Jul 15, 2025-6pm CDT Jul 22, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation