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

Hazardous Weather Conditions

Current conditions at

Salem, Salem-Leckrone Airport (KSLO)

Lat: 38.64°NLon: 88.96°WElev: 574ft.

Fair

60°F

16°C

Humidity 52%
Wind Speed SE 5 mph
Barometer 30.01 in
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 14 May 11:35 pm CDT
Extended Forecast for

Greenville IL

  • Tonight

    Tonight: Increasing clouds, with a low around 52. Southeast wind 5 to 9 mph.

    Low: 52 °F

    Increasing
    Clouds

  • Friday

    Friday: Showers and thunderstorms likely, mainly before 8am. Partly sunny, with a high near 79. East wind 9 to 15 mph becoming south in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 70%.

    High: 79 °F

    Showers
    Likely then
    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 65. South wind around 10 mph.

    Low: 65 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms likely before noon, then showers likely and possibly a thunderstorm between noon and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 81. Southwest wind 9 to 11 mph. Chance of precipitation is 70%.

    High: 81 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 64. South wind around 8 mph. Chance of precipitation is 30%.

    Low: 64 °F

    Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 87. Breezy.

    High: 87 °F

    Sunny then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Clear, with a low around 68.

    Low: 68 °F

    Clear

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Breezy.

    High: 88 °F

    Breezy. Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.

    Low: 71 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Increasing clouds, with a low around 52. Southeast wind 5 to 9 mph.
Friday
Showers and thunderstorms likely, mainly before 8am. Partly sunny, with a high near 79. East wind 9 to 15 mph becoming south in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 70%.
Friday Night
A 20 percent chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 65. South wind around 10 mph.
Saturday
Showers and thunderstorms likely before noon, then showers likely and possibly a thunderstorm between noon and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 81. Southwest wind 9 to 11 mph. Chance of precipitation is 70%.
Saturday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 64. South wind around 8 mph. Chance of precipitation is 30%.
Sunday
Sunny, with a high near 87. Breezy.
Sunday Night
Clear, with a low around 68.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Breezy.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 85. Breezy. Chance of precipitation is 70%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. Chance of precipitation is 70%.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 78.
Wednesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 58.
Thursday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
Greenville IL
 38.88°N 89.39°W (Elev. 538 ft)
Last Update:
10:21 pm CDT May 14, 2026
Forecast Valid:
11pm CDT May 14, 2026-6pm CDT May 21, 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