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

66°F

19°C

Humidity 62%
Wind Speed NA
Barometer 30.12 in
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 10 Oct 9:55 am CDT
Extended Forecast for

Greenville IL

  • Today

    Today: Partly sunny, with a high near 79. Southeast wind 5 to 7 mph.

    High: 79 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 55. East wind around 5 mph becoming calm in the evening.

    Low: 55 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 85. Light and variable wind.

    High: 85 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 60. Light and variable wind.

    Low: 60 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 92. Light southwest wind increasing to 6 to 11 mph in the morning.

    High: 92 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms. Mostly clear, with a low around 61. Chance of precipitation is 20%.

    Low: 61 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 79. Chance of precipitation is 60%.

    High: 79 °F

    Showers
    Likely

Detailed Forecast

Today
Partly sunny, with a high near 79. Southeast wind 5 to 7 mph.
Tonight
Mostly cloudy, with a low around 55. East wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 85. Light and variable wind.
Sunday Night
Mostly clear, with a low around 60. Light and variable wind.
Columbus Day
Sunny, with a high near 92. Light southwest wind increasing to 6 to 11 mph in the morning.
Monday Night
Mostly clear, with a low around 68.
Tuesday
Sunny, with a high near 89.
Tuesday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 61. Chance of precipitation is 20%.
Wednesday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 79. Chance of precipitation is 60%.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 58.
Thursday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 78.
Thursday Night
A 30 percent chance of showers. Partly cloudy, with a low around 52.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Greenville IL
 38.9°N 89.39°W (Elev. 591 ft)
Last Update:
8:36 am CDT Oct 10, 2026
Forecast Valid:
10am CDT Oct 10, 2026-6pm CDT Oct 16, 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