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.

Fog/Mist

46°F

8°C

Humidity 91%
Wind Speed SE 3 mph
Barometer 30.15 in
Dewpoint 44°F (7°C)
Visibility 3.00 mi
Last update 24 Nov 3:35 am CST
Extended Forecast for

4 Miles SW Greenville IL

Dense Fog Advisory until November 24, 09:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until November 24, 09:00am

    NOW until 9:00am Mon

    Dense Fog Advisory

  • Overnight

    Low: 42 °F

    Patchy Dense
    Fog

  • Monday

    Monday: Isolated showers before 9am, then scattered showers after 1pm. Areas of dense fog before noon. Otherwise, cloudy, with a high near 52. Southeast wind 6 to 9 mph. Chance of precipitation is 40%.

    High: 52 °F

    Scattered
    Showers and
    Areas Dense
    Fog

  • Monday Night

    Monday Night: Showers, mainly before 5am. Low around 50. Southeast wind 3 to 8 mph. Chance of precipitation is 100%.

    Low: 50 °F

    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 59. Calm wind becoming west 5 to 7 mph in the morning.

    High: 59 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 34. West wind 6 to 11 mph increasing to 12 to 17 mph after midnight. Winds could gust as high as 24 mph.

    Low: 34 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 44. Breezy.

    High: 44 °F

    Mostly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

  • Thanksgiving Day

    Thanksgiving Day: Sunny, with a high near 41.

    High: 41 °F

    Sunny

Detailed Forecast

Overnight
Patchy dense fog. Otherwise, cloudy, with a low around 42. South wind around 6 mph.
Monday
Isolated showers before 9am, then scattered showers after 1pm. Areas of dense fog before noon. Otherwise, cloudy, with a high near 52. Southeast wind 6 to 9 mph. Chance of precipitation is 40%.
Monday Night
Showers, mainly before 5am. Low around 50. Southeast wind 3 to 8 mph. Chance of precipitation is 100%.
Tuesday
A 30 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 59. Calm wind becoming west 5 to 7 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 34. West wind 6 to 11 mph increasing to 12 to 17 mph after midnight. Winds could gust as high as 24 mph.
Wednesday
Mostly sunny, with a high near 44. Breezy.
Wednesday Night
Mostly clear, with a low around 25.
Thanksgiving Day
Sunny, with a high near 41.
Thursday Night
Mostly clear, with a low around 19.
Friday
Mostly sunny, with a high near 39.
Friday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 27.
Saturday
Rain and snow likely. Cloudy, with a high near 40. Chance of precipitation is 60%.
Saturday Night
Rain likely. Cloudy, with a low around 35. Chance of precipitation is 70%.
Sunday
A 50 percent chance of rain. Mostly cloudy, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Greenville IL
 38.84°N 89.45°W (Elev. 554 ft)
Last Update:
3:11 am CST Nov 24, 2025
Forecast Valid:
3am CST Nov 24, 2025-6pm CST Nov 30, 2025
 
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