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.

Light Rain

71°F

22°C

Humidity 99%
Wind Speed NA
Barometer 29.99 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 14 Oct 9:55 am CDT
Extended Forecast for

Greenville IL

  • Today

    Today: Showers and possibly a thunderstorm, mainly before 1pm, then a chance of showers and thunderstorms after 1pm. High near 78. North wind 3 to 5 mph. Chance of precipitation is 80%.

    High: 78 °F

    Showers

  • Tonight

    Tonight: A chance of showers, with thunderstorms also possible after 1am. Partly cloudy during the early evening, then becoming cloudy, with a low around 64. Light and variable wind becoming northeast 5 to 7 mph in the evening. Chance of precipitation is 30%.

    Low: 64 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 9am. Partly sunny, with a high near 82. East wind 7 to 9 mph becoming southwest in the afternoon. Chance of precipitation is 70%.

    High: 82 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 48. Southwest wind 6 to 11 mph becoming northwest 12 to 17 mph after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 70%.

    Low: 48 °F

    Showers
    Likely

  • Friday

    Friday: Partly sunny, with a high near 60. Breezy, with a northwest wind 20 to 23 mph, with gusts as high as 31 mph.

    High: 60 °F

    Partly 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 62.

    High: 62 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 37.

    Low: 37 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

Detailed Forecast

Today
Showers and possibly a thunderstorm, mainly before 1pm, then a chance of showers and thunderstorms after 1pm. High near 78. North wind 3 to 5 mph. Chance of precipitation is 80%.
Tonight
A chance of showers, with thunderstorms also possible after 1am. Partly cloudy during the early evening, then becoming cloudy, with a low around 64. Light and variable wind becoming northeast 5 to 7 mph in the evening. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 9am. Partly sunny, with a high near 82. East wind 7 to 9 mph becoming southwest in the afternoon. Chance of precipitation is 70%.
Thursday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 48. Southwest wind 6 to 11 mph becoming northwest 12 to 17 mph after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 70%.
Friday
Partly sunny, with a high near 60. Breezy, with a northwest wind 20 to 23 mph, with gusts as high as 31 mph.
Friday Night
Mostly clear, with a low around 37.
Saturday
Sunny, with a high near 62.
Saturday Night
Clear, with a low around 37.
Sunday
Sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 43.
Monday
Partly sunny, with a high near 72.
Monday Night
Mostly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 77.
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:
5:06 am CDT Oct 14, 2026
Forecast Valid:
10am CDT Oct 14, 2026-6pm CDT Oct 20, 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