Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

Salem, Salem-Leckrone Airport (KSLO)

Lat: 38.64°NLon: 88.96°WElev: 574ft.

72°F

22°C

Humidity 91%
Wind Speed NA
Barometer 30.03 in
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 17 Aug 8:35 pm CDT
Extended Forecast for

Alma IL

  • Tonight

    Tonight: Patchy fog after 5am.  Otherwise, mostly cloudy, then gradually becoming clear, with a low around 62. Light north wind.

    Low: 62 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 8am.  Otherwise, sunny, with a high near 83. Light and variable wind.

    High: 83 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms, mainly after 4am.  Clear, then becoming mostly cloudy toward daybreak, with a low around 67. South wind 3 to 5 mph.

    Low: 67 °F

    Mostly Clear
    then Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly before 1pm.  Mostly cloudy, with a high near 82. West wind around 6 mph becoming calm  in the morning.  Chance of precipitation is 60%.

    High: 82 °F

    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely.  Mostly cloudy, with a low around 66. Calm wind.  Chance of precipitation is 60%.

    Low: 66 °F

    T-storms
    Likely

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms.  Partly sunny, with a high near 81.

    High: 81 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms.  Mostly clear, with a low around 64. Chance of precipitation is 20%.

    Low: 64 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Patchy fog after 5am. Otherwise, mostly cloudy, then gradually becoming clear, with a low around 62. Light north wind.
Tuesday
Patchy fog before 8am. Otherwise, sunny, with a high near 83. Light and variable wind.
Tuesday Night
A 40 percent chance of showers and thunderstorms, mainly after 4am. Clear, then becoming mostly cloudy toward daybreak, with a low around 67. South wind 3 to 5 mph.
Wednesday
Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, with a high near 82. West wind around 6 mph becoming calm in the morning. Chance of precipitation is 60%.
Wednesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 60%.
Thursday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 62.
Friday
Sunny, with a high near 83.
Friday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 64. Chance of precipitation is 20%.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 83.
Saturday Night
Mostly clear, with a low around 62.
Sunday
Sunny, with a high near 80.
Sunday Night
Partly cloudy, with a low around 61.
Monday
Mostly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
Alma IL
 38.71°N 88.92°W (Elev. 630 ft)
6:11 pm CDT Aug 17, 2026
9pm CDT Aug 17, 2026-6pm CDT Aug 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database