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

Salem, Salem-Leckrone Airport (KSLO)

Lat: 38.64°NLon: 88.96°WElev: 574ft.

Fair

91°F

33°C

Humidity 46%
Wind Speed NA
Barometer 29.95 in
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 13 Oct 12:35 pm CDT
Extended Forecast for

Greenville IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 93. Southwest wind 7 to 9 mph.

    High: 93 °F

    Sunny

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 4am. Increasing clouds, with a low around 71. South wind 5 to 7 mph becoming light and variable after midnight.

    Low: 71 °F

    Mostly Clear
    then Chance
    T-storms

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm, mainly before 1pm, then a chance of showers and thunderstorms after 1pm. High near 78. Light west wind. Chance of precipitation is 80%.

    High: 78 °F

    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 2am, then a chance of showers between 2am and 4am, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 65. Calm wind. Chance of precipitation is 60%.

    Low: 65 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: Showers and possibly a thunderstorm. High near 82. Light and variable wind becoming southwest 5 to 9 mph in the morning. Chance of precipitation is 90%.

    High: 82 °F

    Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 61. Breezy.

    High: 61 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 93. Southwest wind 7 to 9 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 4am. Increasing clouds, with a low around 71. South wind 5 to 7 mph becoming light and variable after midnight.
Wednesday
Showers and possibly a thunderstorm, mainly before 1pm, then a chance of showers and thunderstorms after 1pm. High near 78. Light west wind. Chance of precipitation is 80%.
Wednesday Night
A slight chance of showers and thunderstorms before 2am, then a chance of showers between 2am and 4am, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 65. Calm wind. Chance of precipitation is 60%.
Thursday
Showers and possibly a thunderstorm. High near 82. Light and variable wind becoming southwest 5 to 9 mph in the morning. Chance of precipitation is 90%.
Thursday Night
A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 48.
Friday
Mostly sunny, with a high near 61. Breezy.
Friday Night
Mostly clear, with a low around 37.
Saturday
Sunny, with a high near 63.
Saturday Night
Clear, with a low around 37.
Sunday
Sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Mostly sunny, with a high near 75.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Greenville IL
 38.88°N 89.39°W (Elev. 538 ft)
Last Update:
11:26 am CDT Oct 13, 2026
Forecast Valid:
12pm CDT Oct 13, 2026-6pm CDT Oct 19, 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