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.

Overcast

61°F

16°C

Humidity 86%
Wind Speed NA
Barometer 30.02 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 16 Oct 1:35 am CDT
Extended Forecast for

Greenville IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 49. Northwest wind around 17 mph, with gusts as high as 28 mph.

    Low: 49 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 2pm. Mostly cloudy, with a high near 54. Breezy, with a northwest wind 17 to 20 mph, with gusts as high as 31 mph.

    High: 54 °F

    Breezy.
    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 37. North wind 9 to 16 mph, with gusts as high as 28 mph.

    Low: 37 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Patchy frost before 8am. Otherwise, sunny, with a high near 60. North wind 5 to 7 mph becoming calm in the afternoon.

    High: 60 °F

    Patchy Frost
    then Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 34. Calm wind.

    Low: 34 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 49. Northwest wind around 17 mph, with gusts as high as 28 mph.
Friday
A 20 percent chance of showers after 2pm. Mostly cloudy, with a high near 54. Breezy, with a northwest wind 17 to 20 mph, with gusts as high as 31 mph.
Friday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 37. North wind 9 to 16 mph, with gusts as high as 28 mph.
Saturday
Patchy frost before 8am. Otherwise, sunny, with a high near 60. North wind 5 to 7 mph becoming calm in the afternoon.
Saturday Night
Clear, with a low around 34. Calm wind.
Sunday
Sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 38.
Monday
Sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 40.
Tuesday
Sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
Sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Greenville IL
 38.88°N 89.39°W (Elev. 538 ft)
Last Update:
1:26 am CDT Oct 16, 2026
Forecast Valid:
1am CDT Oct 16, 2026-6pm CDT Oct 22, 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