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.

Partly Cloudy

81°F

27°C

Humidity 74%
Wind Speed Calm
Barometer 29.98 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 25 Jun 2:50 pm CDT
Extended Forecast for

3 Miles NE Marine IL

Flood Watch June 25, 03:42pm until June 26, 07:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch June 25, 03:42pm until June 26, 07:00pm

    NOW until 7:00pm Fri

    Flood Watch

  • This Afternoon

    High: 84 °F

    T-storms
    Likely

  • Tonight

    Tonight: Showers and thunderstorms, mainly after midnight. Low around 68. Calm wind becoming south around 6 mph after midnight. Chance of precipitation is 90%.

    Low: 68 °F

    Chance
    T-storms then
    T-storms

  • Friday

    Friday: Showers and thunderstorms, mainly before 5pm. High near 80. Southeast wind 7 to 13 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%.

    High: 80 °F

    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms likely, mainly before midnight. Mostly cloudy, with a low around 67. Southwest wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 67 °F

    T-storms
    Likely then
    Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Light and variable wind. Chance of precipitation is 30%.

    High: 83 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.

    Low: 71 °F

    Chance
    T-storms

  • Sunday

    Sunday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Showers and thunderstorms likely, mainly before 4pm. Mostly cloudy, with a high near 84. Light and variable wind. Chance of precipitation is 60%.
Tonight
Showers and thunderstorms, mainly after midnight. Low around 68. Calm wind becoming south around 6 mph after midnight. Chance of precipitation is 90%.
Friday
Showers and thunderstorms, mainly before 5pm. High near 80. Southeast wind 7 to 13 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%.
Friday Night
Showers and thunderstorms likely, mainly before midnight. Mostly cloudy, with a low around 67. Southwest wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 60%.
Saturday
A slight chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Light and variable wind. Chance of precipitation is 30%.
Saturday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Sunday
Sunny, with a high near 92.
Sunday Night
Mostly clear, with a low around 75.
Monday
Sunny, with a high near 95.
Monday Night
Mostly clear, with a low around 75.
Tuesday
Sunny, with a high near 96.
Tuesday Night
Clear, with a low around 75.
Wednesday
Sunny, with a high near 96.
Wednesday Night
Mostly clear, with a low around 76.
Thursday
Sunny, with a high near 95.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Marine IL
 38.8°N 89.74°W (Elev. 541 ft)
Last Update:
3:02 pm CDT Jun 25, 2026
Forecast Valid:
3pm CDT Jun 25, 2026-6pm CDT Jul 2, 2026
 
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