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

Active Pattern for the Center of the Nation

Critical fire weather conditions, severe thunderstorms capable of producing severe wind gusts, large hail, strong tornadoes and heavy rainfall remain on tap for the central U.S. this evening. Flash flooding is also possible for portions of the Plains and Mississippi Valley. Very large hail up to 3 inches in diameter will be possible this evening across western Kansas. Read More >

Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

12°C

53°F

Humidity 60%
Wind Speed E 7 km/h
Barometer 30.05 in
Dewpoint 4°C (40°F)
Visibility 16 km
Wind Chill11°C (52°F)
Last update 26 Apr 1:15 am CDT
Extended Forecast for

Pontoon Beach IL

  • Overnight

    Overnight: A slight chance of showers between 3am and 4am, then a slight chance of showers and thunderstorms after 4am. Cloudy, with a low around 10. Southeast wind around 14 km/h, with gusts as high as 34 km/h. Chance of precipitation is 20%.

    Slight Chance
    T-storms

    Low: 10 °C

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms. Cloudy, with a high near 22. Southeast wind 21 to 27 km/h, with gusts as high as 47 km/h.

    Chance
    T-storms

    High: 22 °C

  • Friday
    Night

    Friday Night: A 50 percent chance of showers and thunderstorms. Cloudy, then gradually becoming partly cloudy, with a low around 19. Breezy, with a south wind 29 to 34 km/h decreasing to 23 to 28 km/h after midnight. Winds could gust as high as 48 km/h.

    Chance
    T-storms and
    Breezy

    Low: 19 °C

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 27. Breezy, with a south wind 26 to 31 km/h increasing to 35 to 40 km/h in the morning. Winds could gust as high as 60 km/h.

    Chance
    T-storms and
    Breezy

    High: 27 °C

  • Saturday
    Night

    Saturday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 21. Breezy, with a south wind 29 to 34 km/h, with gusts as high as 50 km/h. Chance of precipitation is 20%.

    Slight Chance
    T-storms and
    Breezy

    Low: 21 °C

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 28. Breezy. Chance of precipitation is 40%.

    Chance
    Showers and
    Breezy

    High: 28 °C

  • Sunday
    Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 18. Breezy. Chance of precipitation is 80%.

    Showers and
    Breezy

    Low: 18 °C

  • Monday

    Monday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 25. Chance of precipitation is 60%.

    Showers
    Likely

    High: 25 °C

  • Monday
    Night

    Monday Night: A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 14.

    Chance
    T-storms

    Low: 14 °C

Detailed Forecast

Overnight
A slight chance of showers between 3am and 4am, then a slight chance of showers and thunderstorms after 4am. Cloudy, with a low around 10. Southeast wind around 14 km/h, with gusts as high as 34 km/h. Chance of precipitation is 20%.
Friday
A 50 percent chance of showers and thunderstorms. Cloudy, with a high near 22. Southeast wind 21 to 27 km/h, with gusts as high as 47 km/h.
Friday Night
A 50 percent chance of showers and thunderstorms. Cloudy, then gradually becoming partly cloudy, with a low around 19. Breezy, with a south wind 29 to 34 km/h decreasing to 23 to 28 km/h after midnight. Winds could gust as high as 48 km/h.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 27. Breezy, with a south wind 26 to 31 km/h increasing to 35 to 40 km/h in the morning. Winds could gust as high as 60 km/h.
Saturday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 21. Breezy, with a south wind 29 to 34 km/h, with gusts as high as 50 km/h. Chance of precipitation is 20%.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 28. Breezy. Chance of precipitation is 40%.
Sunday Night
Showers and possibly a thunderstorm. Low around 18. Breezy. Chance of precipitation is 80%.
Monday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 25. Chance of precipitation is 60%.
Monday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 14.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 28.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 17.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 27.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 14.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 25.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Pontoon Beach IL
 38.73°N 90.06°W (Elev. 129 m)
Last Update:
10:37 pm CDT Apr 25, 2024
Forecast Valid:
1am CDT Apr 26, 2024-6pm CDT May 2, 2024
 
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Additional Resources

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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