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

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Overcast

63°F

17°C

Humidity 85%
Wind Speed N 6 mph
Barometer 29.90 in
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 22 Jun 5:35 am CDT
Extended Forecast for

5 Miles NNW Greenville IL

  • Today

    Today: Mostly cloudy, with a high near 74. North wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 74 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 58. North wind around 6 mph becoming calm in the evening.

    Low: 58 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 79. Calm wind.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81. Calm wind becoming south around 5 mph. Chance of precipitation is 40%.

    High: 81 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 64.

    Low: 64 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.

    Low: 63 °F

    Chance
    T-storms

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.

    High: 81 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Mostly cloudy, with a high near 74. North wind 8 to 10 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 58. North wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 79. Calm wind.
Tuesday Night
Partly cloudy, with a low around 61. Calm wind.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81. Calm wind becoming south around 5 mph. Chance of precipitation is 40%.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 64.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Chance of precipitation is 70%.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Sunday
Mostly sunny, with a high near 90.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNW Greenville IL
 38.95°N 89.42°W (Elev. 551 ft)
Last Update:
4:56 am CDT Jun 22, 2026
Forecast Valid:
5am CDT Jun 22, 2026-6pm CDT Jun 28, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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