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

41°F

5°C

Humidity 61%
Wind Speed S 12 mph
Barometer 30.06 in
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 13 Jan 1:15 am CST
Extended Forecast for

Greenville IL

  • Overnight

    Overnight: Mostly clear, with a low around 33. South wind 6 to 9 mph.

    Low: 33 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 60. West wind 8 to 15 mph, with gusts as high as 25 mph.

    High: 60 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly between 7pm and 9pm. Mostly cloudy, with a low around 35. West wind 7 to 13 mph, with gusts as high as 24 mph.

    Low: 35 °F

    Chance Rain

  • Wednesday

    Wednesday: Mostly cloudy, with a temperature rising to near 39 by 10am, then falling to around 32 during the remainder of the day. Breezy, with a northwest wind 15 to 23 mph, with gusts as high as 31 mph.

    High: 39 °F⇓

    Mostly Cloudy
    and Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 16. North wind 10 to 16 mph, with gusts as high as 24 mph.

    Low: 16 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 22.

    Low: 22 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of snow after noon. Mostly cloudy, with a high near 40.

    High: 40 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 18.

    Low: 18 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 33. South wind 6 to 9 mph.
Tuesday
Increasing clouds, with a high near 60. West wind 8 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
A 30 percent chance of rain, mainly between 7pm and 9pm. Mostly cloudy, with a low around 35. West wind 7 to 13 mph, with gusts as high as 24 mph.
Wednesday
Mostly cloudy, with a temperature rising to near 39 by 10am, then falling to around 32 during the remainder of the day. Breezy, with a northwest wind 15 to 23 mph, with gusts as high as 31 mph.
Wednesday Night
Partly cloudy, with a low around 16. North wind 10 to 16 mph, with gusts as high as 24 mph.
Thursday
Mostly sunny, with a high near 29.
Thursday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 22.
Friday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 40.
Friday Night
Mostly cloudy, with a low around 18.
Saturday
Partly sunny, with a high near 26.
Saturday Night
Mostly cloudy, with a low around 8.
Sunday
Mostly sunny, with a high near 23.
Sunday Night
Partly cloudy, with a low around 11.
M.L.King Day
Mostly sunny, with a high near 31.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Greenville IL
 38.88°N 89.42°W (Elev. 499 ft)
Last Update:
12:21 am CST Jan 13, 2026
Forecast Valid:
1am CST Jan 13, 2026-6pm CST Jan 19, 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